Re: [python-win32] FIle I/O on Windows XP
Hi Tony, > I was trying to see if I could speed up processing huge files (in the 10's of > Gigabytes) by passing various values to the readline() method of the file > object. We also work with large sized text files (we use Python for ETL jobs in the 100-200 Gb range) and have noticed similar behaviors. We're currently running 32 and 64 bit versions of Python 2.6.1 on Windows XP (32-bit/2 Gb) and Windows 2008 (64-bit/48 Gb) with SCSI and eSATA drives. All our file access is local (vs. over a network) and the boxes our jobs run on are dedicated machines running nothing else but our Python scripts. Our boxes are on an isolated network and we have no virus checking software running in the background. Since our boxes are maxed out with memory, we thought that supplying large buffer sizes to open() would improve performance. Like you, we were surprised that this strategy significantly slowed down our processing. We're currently opening our text files via open() and allowing Python to choose the default buffer size. My experience with Python is that many performance enhancement techniques are not (initially) intuitive - but my gut tells me that the behavior we are both seeing is *NOT* one of these cases, eg. something smells fishy. I'm happy to run experiments on our side if anyone has suggestions. Thanks for bringing this up. Regards, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Read USB memory stick serial number
Apparently retrieving the serial number of a USB memory stick is much more complicated than one would think. Is there a published Python recipe for determining a USB memory stick's device level serial number under Windows and/or Linux/Mac? My Windows research follows my signature. Any feedback appreciated. Regards, Malcolm 1. Here's a VBS script that attempts to use WMI to retrieve a USB serial number. This script reports my USB drive as PHYSICALDRIVE4 with an empty serial number. Based on this experiment, it looks like WMI does not have access to the information we're looking for. set svc = getobject ( "winmgmts:root\cimv2" ) set objEnum = svc.execQuery ( "select SerialNumber from win32_physicalMedia ") s1 = "" for each obj in objEnum s1 = s1 + obj.GetObjectText_ + VBCR next wscript.echo s1 2. Here's what I found on my 64-bit Windows 7 Professional registry using the following registry key I discovered during my research on this topic[1]: - Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\USBSTOR\Enum - Value: 0 = USB\VID_13FE&PID_1D00\5B7A11000302 Here's how the above value breaks out (text in parentheses are my own notes): - VID: 13FE (vendor id; Kingston Technology Company Inc.) - PID: 1D00 (product id; DataTraveler 2.0 1GB/4GB Flash Drive) - S/N: 5B7A11000302 Unfortunately, I don't know how one would identify a specific device if multiple devices were present (I don't have multiple memory sticks to test against yet). I assume that one technique would be to enumerate against similar keys and/or values (0...N)? I also don't know how portable this technique (key/value) is across various flavors of Windows. 3. Here's what VOL returns from CMD shell via VOL D: Volume serial number: 7644-2554 This serial number can be changed by a user via the LABEL command. This serial number does not appear to be mathematically related to the USB serial number. References: [1] USBDeview is a small utility that lists all USB devices that are currently connected to your computer, as well as all USB devices that you previously used. For each USB device, extended information is displayed: Device name/description, device type, serial number (for mass storage devices), the date/time that device was added, VendorID, ProductID, and more. http://www.nirsoft.net/utils/usb_devices_view.html ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Read USB memory stick serial number
Tim, Cheers for the great solution!! Your code gives me an easy to parse string containing the same serial number as reported by USBDeview.exe. Thank you very much, Malcolm Try using Win32_DiskDrive instead. I'm not 100% sure (read: I'm about 1% sure) what constitutes the USB serial number. The only thing I'm fairly sure about is that it's *not* the volume label. The PNPDeviceID looks good, even if it might need a bit of parsing: import wmi c = wmi.WMI () for usb in c.Win32_DiskDrive (InterfaceType="USB"): print usb.PNPDeviceID _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Create a QueryInfo type Windows Shell Extension to provide InfoTip data in Windows Explorer
Wondering if its possible to create Windows Shell Extensions using pywin32 and if so, has anyone has tried to create a QueryInfo type Windows Shell Extension? I would like to create a Python equivalent of the simple InfoTip described in this well written tutorial. http://www.codeproject.com/KB/shell/shellextguide3.aspx Here's a quick excerpt from this article: Quote: The Active Desktop shell introduced a new feature: tooltips that show a description of certain objects if you hover the mouse over them. For example, hovering over My Documents shows this tooltip: [My Computer tooltip - 6K] Other objects like My Computer and Control Panel have similar tooltips. These bits of text are called infotips, since they are tooltips that provide information about the file, folder, or object that the mouse is over. We can provide our own infotip text for other objects in the shell, using an infotip extension. An example of an infotip extension that you have probably already seen is in WinZip, which shows the contents of compressed files: [WinZip tooltip - 5K] This article's sample extension will be a quick text file viewer - it will display the first line of the file, along with the total file size. This information will appear in an infotip when the user hovers the mouse over a .TXT file. Extracting the info I want to display in an InfoTIp is easy :) ... its the plumbing to support the display of information that has me stuck. Thank you, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Detect when application is running in a VM environment?
Looking for ideas on how to detect when our Windows application is running in one of the following VM environments. Some starter ideas for detection are in parentheses. There may be (much) better detection techniques - the starter ideas I've come up with are based on my Google research. - VMWare (looking for the presence of optional VMware Tools is one way) - Microsoft Virtual PC (have a device named "Virtual HD" for their IDE disks, "MS Virtual SCSI Disk Device" for their SCSI disks) - Citrix Xen - Sun Virtual Box Any suggestions? Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] WMI script that shows general info about a computer
Apologies for the vague description. I'm looking for tips on a WMI query that would allow me to show general info about a computer. We're going to use this data as part of a workstation inventory project I'm working on. I'm sure I've seen this type of query before but my google-mojo is failing me. Thank you, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Detect when application is running in a VM environment?
Hi Tim, >> Looking for ideas on how to detect when our Windows application is >> running in one of the following VM environments. > Why? Is this for curiousity, or is it a lame-brained security scheme? LOL! No, I'm working on a script that inventories all the environments we're running in our development labs. With virtualization, we have lots of new environments popping up all over the place - most of which are intended as temporary test environments - that have the unfortunate side effect of hanging around a lot longer than we had hoped. Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] WMI script that shows general info about a computer (SOLVED)
OP here. When in doubt, read the (very well commented) wmi.py source code :) computerSystem = wmi.WMI().Win32_ComputerSystem()[0] Sorry for the interuption. Malcolm - Original message - From: pyt...@bdurham.com To: python-win32@python.org Date: Wed, 03 Mar 2010 21:01:19 -0500 Subject: [python-win32] WMI script that shows general info about a computer Apologies for the vague description. I'm looking for tips on a WMI query that would allow me to show general info about a computer. We're going to use this data as part of a workstation inventory project I'm working on. I'm sure I've seen this type of query before but my google-mojo is failing me. Thank you, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32 _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] How to enumerate a WMI object to discover its properties?
Is there a way to enumerate a WMI object's properties to discover what they are vs. having to explictly reference properties by name? >From reading the wmi.py source code I understand that enumerating Win32_ComputerSystem() is not a good idea. But, using that as an example anyway, how would I get a list of WMI properties like .TotalPhysicalMemory without having to know each property ahead of time. Thank you, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to enumerate a WMI object to discover its properties?
Hi Tim, Thanks to your help, here's what I'm using to record interesting information about our workstation inventory. It works great! c = wmi.WMI().Win32_ComputerSystem computer = c()[0] for propertyName in sorted( list( c.properties ) ): print '%s = %s' % ( propertyName, getattr( computer, propertyName, '' ) ) For those searching the archives, the same technique can be used to capture BIOS info as well using the following replacement line. c = wmi.WMI().Win32_BIOS Thank you very much for your help and for all your Win32 contributions!!! Cheers, Malcolm - Original message - From: "Tim Golden" To: Cc: "zz Python Win32 Newsgroup" Date: Thu, 04 Mar 2010 08:49:28 + Subject: Re: [python-win32] How to enumerate a WMI object to discover its properties? On 04/03/2010 06:38, pyt...@bdurham.com wrote: > Is there a way to enumerate a WMI object's properties to discover > what they are vs. having to explictly reference properties by > name? Assuming I understand the question, a quickie shortcut is just to "print" the object: import wmi c = wmi.WMI () for s in c.Win32_ComputerSystem (): print s but in fact each object also holds a list of its own properties: import wmi c = wmi.WMI () print list (c.Win32_ComputerSystem.properties) print list (c.Win32_ComputerSystem.methods) or you can do the same with an instance: for s in c.Win32_ComputerSystem (): print list (s.properties) ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] WMI script that shows general info about a computer (SOLVED)
Hi Tim, > Well I'm always glad to hear a positive comment on the > source code, but there *is* some documentation: > > http://timgolden.me.uk/python/wmi/index.html > http://timgolden.me.uk/python/wmi/tutorial.html > http://timgolden.me.uk/python/wmi/cookbook.html I read and enjoyed all your documentation. The WMI feature I was trying to find (couldn't remember the name) was Win32_ComputerSystem and I don't believe that showed up in any of your examples. Not a criticism - I wasn't expecting you to provide general WMI documentation. I'm back on track thanks to your help! Cheers, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] WMI script that shows general info about a computer (SOLVED)
Hi Tim, > Something else which might help, then, is the wmiweb.py which ships with > recent versions of the wmi module. It installs to c:\pythonxx\scripts or you > can just get it here: http://svn.timgolden.me.uk/wmi/trunk/wmiweb.py > It's a standalone web app which lets you browse the wmi namespaces on local > or remote computers. I often use it when I know there's a WMI class for > something but I can't remember exactly what it's called :) WOW!!! I had that on my workstation and didn't even know about it. I just took a look and was blown away. Very nicely done. And very, very helpful!!! THANK YOU TIM! Cheers, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Detect whether a workstation is a laptop or desktop/server?
As part of an inventory project I'm working on, I'm trying to figure out whether a specific computer is a mobile asset (laptop) or fixed asset (desktop/server). Is there some feature that I can look that would indicate whether a computer is a laptop or not? My initial thought was I could look for battery properties, but I'm not sure that would allow me to distinguish between a laptop and a server with an attached UPS. Any suggestions? Thank you, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Detect whether a workstation is a laptop or desktop/server?
Hi Roberto. > I assume you could categorize a computer as a laptop or desktop once you knew > the machine's make an model. Unfortunately, we're a start-up company with an entirely random mix of computers from what seems like every vendor possible. I'm not sure where I would find a database for some of the machines we have. I'm hoping that there's a WMI property that allows me to distinguish between a laptop battery and an external UPS. (I've been looking, but my google-fu is failing me). Thanks for your help, Regards, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Detect whether a workstation is a laptop or desktop/server?
Steve, Those are some great ideas! I'll give it a shot and see what works for us. Thanks for your help, Malcolm - Original message - From: "Steven James" To: python-win32@python.org Date: Sat, 6 Mar 2010 10:17:43 -0500 Subject: Re: [python-win32] Detect whether a workstation is a laptop or desktop/server? Not sure exactly, but perhaps you could distinguish whether the battery is connected via USB or some other transport method? Looking through the device manager there seem to be some fields that might be relevant. As a network admin, I've used a free software called Spiceworks in the past that scans our network and classifies machines. Does a decent job and seems to use the model-database technique. Other ways might be...does the machine have a PCMCIA slot? does it have built-in wifi/bluetooth? A 5400RPM hard drive? These aren't assurances, but they point to laptops. Well I think that's every way possible of not answering your question. Sorry =). SJ On Sat, Mar 6, 2010 at 10:00 AM, <[1]pyt...@bdurham.com> wrote: Hi Roberto. > I assume you could categorize a computer as a laptop or desktop once you knew the machine's make an model. Unfortunately, we're a start-up company with an entirely random mix of computers from what seems like every vendor possible. I'm not sure where I would find a database for some of the machines we have. I'm hoping that there's a WMI property that allows me to distinguish between a laptop battery and an external UPS. (I've been looking, but my google-fu is failing me). Thanks for your help, Regards, Malcolm ___ python-win32 mailing list [2]python-wi...@python.org [3]http://mail.python.org/mailman/listinfo/python-win32 ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32 References 1. mailto:pyt...@bdurham.com 2. mailto:python-win32@python.org 3. http://mail.python.org/mailman/listinfo/python-win32 ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Detect whether a workstation is a laptop or desktop/server?
Preston, Tony, and Steven, I found the following WMI class which sounds like it might be useful. Determine whether a computer is a tower, a mini-tower, a laptop, and so on by using the Win32_SystemEnclosure class and checking the value of the ChassisType property. http://msdn.microsoft.com/en-us/library/aa394587%28VS.85%29.aspx Oddly enough, this function indicates that my laptop (new Sony Vaio running Windows 7 Professional (64-bit) has no enclosure. :) Well, its a start! Thank you all for your ideas and help! Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Trying to get the Win32_PortableBattery and Win32_SystemEnclosure classes to work
I'm trying to get the Win32_PortableBattery and
Win32_SystemEnclosure classes to work.
Oddly enough, both classes return empty results on my laptop. I'm
wondering if I'm using the WMI interface correctly or if I need
to be more explict in the arguments I pass to each class's
__init__?
Here are my results from Python 2.6.4 (32-bit) run on a Sony Vaio
laptop with Windows 7 Professional (64-bit):
>>> import wmi
>>> c = wmi.WMI().Win32_SystemEnclosure
>>> c
<_wmi_class: \\SONYLAPTOP-01\ROOT\cimv2:Win32_SystemEnclosure>
>>> c()
[<_wmi_object:
\\SONYLAPTOP-01\root\cimv2:Win32_SystemEnclosure.Tag="System
Enclosure 0">]
>>> c()[0]
<_wmi_object:
\\SONYLAPTOP-01\root\cimv2:Win32_SystemEnclosure.Tag="System
Enclosure 0">
>>> c()[0].properties
{u'HotSwappable': None, u'SKU': None, u'SerialNumber': None,
u'Width': None, u'SecurityBreach': None, u'Removable': None,
u'PartNumber': None, u'AudibleAlarm': None, u'Status': None,
u'TypeDescriptions': None, u'Description': None,
u'NumberOfPowerCords': None, u'Replaceable': None,
u'LockPresent': None, u'SecurityStatus': None,
u'BreachDescription': None, u'Manufacturer': None,
u'OtherIdentifyingInfo': None, u'Version': None, u'Name': None,
u'InstallDate': None, u'ServiceDescriptions': None,
u'VisibleAlarm': None, u'PoweredOn': None, u'ServicePhilosophy':
None, u'SMBIOSAssetTag': None, u'Caption': None, u'Depth': None,
u'Model': None, u'HeatGeneration': None, u'Weight': None,
u'ChassisTypes': None, u'Height': None, u'Tag': None,
u'CableManagementStrategy': None, u'CreationClassName': None,
u'CurrentRequiredOrProduced': None}
-AND-
>>> c = wmi.WMI().Win32_PortableBattery
>>> c
<_wmi_class: \\SONYLAPTOP-01\ROOT\cimv2:Win32_PortableBattery>
>>> c()
[]
>>> c.properties
{u'BatteryStatus': None, u'PowerManagementSupported': None,
u'ManufactureDate': None, u'MaxRechargeTime': None,
u'SystemName': None, u'Location': None, u'CapacityMultiplier':
None, u'Status': None, u'TimeToFullCharge': None, u'PNPDeviceID':
None, u'Description': None, u'ConfigManagerUserConfig': None,
u'ErrorCleared': None, u'MaxBatteryError': None, u'Manufacturer':
None, u'Name': None, u'InstallDate': None, u'DesignVoltage':
None, u'EstimatedChargeRemaining': None, u'Caption': None,
u'StatusInfo': None, u'DeviceID': None,
u'ConfigManagerErrorCode': None, u'PowerManagementCapabilities':
None, u'Chemistry': None, u'TimeOnBattery': None,
u'ExpectedLife': None, u'DesignCapacity': None,
u'SmartBatteryVersion': None, u'ErrorDescription': None,
u'Availability': None, u'LastErrorCode': None,
u'CreationClassName': None, u'EstimatedRunTime': None,
u'FullChargeCapacity': None, u'SystemCreationClassName': None}
BTW: I get similar (empty) results when I run the equivalent
non-wmi module code (win32com.client based) for the above WMI
classes from the following script collection:
http://www.thescriptlibrary.com/Default.asp?Action=Browse&Level=C
ategory2&ScriptLanguage=Python&Category1=Scriptomatic&Category2=C
IMV2
Any suggestions appreciated.
Thank you,
Malcolm
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Re: [python-win32] Trying to get the Win32_PortableBattery and Win32_SystemEnclosure classes to work
Hi Tim,
> It looks like you're a little bit confused as to what's going on here. (Or
> maybe I am :) ).
No, I'm definitely the one that's confused! :)
> Although you *can*, you won't normally use the class as an object in its own
> right. But maybe you were just checking that you'd got the right thing.
I was checking that I got the right thing - for purposes of documenting
my question on this forum.
>>>> c()[0].properties
> {u'HotSwappable': None, u'SKU': None, u'SerialNumber': None,
> u'Width': None, u'SecurityBreach': None, u'Removable': None,
> u'PartNumber': None, u'AudibleAlarm': None, u'Status': None,
> u'TypeDescriptions': None, u'Description': None,
> u'NumberOfPowerCords': None, u'Replaceable': None,
> u'LockPresent': None, u'SecurityStatus': None,
> u'BreachDescription': None, u'Manufacturer': None,
> u'OtherIdentifyingInfo': None, u'Version': None, u'Name': None,
> u'InstallDate': None, u'ServiceDescriptions': None,
> u'VisibleAlarm': None, u'PoweredOn': None, u'ServicePhilosophy':
> None, u'SMBIOSAssetTag': None, u'Caption': None, u'Depth': None,
> u'Model': None, u'HeatGeneration': None, u'Weight': None,
> u'ChassisTypes': None, u'Height': None, u'Tag': None,
> u'CableManagementStrategy': None, u'CreationClassName': None,
> u'CurrentRequiredOrProduced': None}
> OK. Now you're looking at the behind-the-scenes properties cache. Which
> doesn't have anything in it yet because you haven't requested any properties.
> Try this instead:
> Do you still get no values?
Now I see what I was doing wrong. Your code example explains it
perfectly.
Works perfectly for me with the ***c.Win32_SystemEnclosure class***.
> And likewise for the battery class
No. The battery class appears to really return no information.
Here's my updated battery code:
import wmi
c = wmi.WMI()
for battery in c.Win32_PortableBattery():
print battery
This code doesn't output anything.
Here's a step-by-step from IDLE:
>>> c = wmi.WMI().Win32_PortableBattery
>>> c
<_wmi_class: \\SONYLAPTOP-01\ROOT\cimv2:Win32_PortableBattery>
>>> c()
[] <- empty list
I'm testing this on a 2009 Sony Vaio laptop (notebook with a built-in
battery) running Windows 7 Professional (64-bit).
I'm positive I have a battery and that this battery works.
Thanks again for your help on this thread.
Regards,
Malcolm
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Re: [python-win32] [Correction] Trying to get the Win32_PortableBattery and Win32_SystemEnclosure classes to work
Tim, The problem with Win32_PortableBattery appears to be that I need to use Win32_Battery instead. Using the latter, everything works as expected. I'm not entirely clear on why there are 2 battery classes and why I would choose to use vs. the other, but I suspect the Win32_PortableBattery class is for machines with advanced power supply management capabilities. Thank you for your help! Regards, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] [Correction] Trying to get the Win32_PortableBattery and Win32_SystemEnclosure classes to work
>> I suspect the win32_PortableBattery class is for machines with advanced >> power supply management capabilities. > Obviously it's for machines that have a *wireless* battery. :) Now you tell me! Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Technique to limit number of instances of our application under Terminal Server
I'm looking for simple ways to monitor and limit the number of instances of our Python application that gets run on our in-house Terminal Servers (2003 and 2008). The purpose of this restriction is to make sure we don't overload our servers. This is an internal administrative requirement - I am not looking for a licensing solution. Background: The application in question is written in Python 2.6 (32-bit). Our Terminal Server environments are used for testing and it is not uncommon for the test builds of our application to lock up or abort abnormally. Please consider these non-typical circumstances when suggesting a solution :) Thank you, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Technique to limit number of instances of our application under Terminal Server
Hi Tim, > It's not quite clear whether you want something which you can build into the > application itself Yes, since I control the source code, this is a feature I would like to build into my applications. > ... in which case, the answer's probably Semaphores: > http://msdn.microsoft.com/en-us/library/ms685129%28VS.85%29.aspx Thanks for that link. My understanding is that semaphores only to apply to threads within a single running application? On the other hand, perhaps the term 'threads' applies to applications as well? I say that because the term thread is used to describe mutex's which I've used on a program vs. thread basis. Microsoft's description of Mutex's http://msdn.microsoft.com/en-us/library/ms684266%28VS.85%29.aspx My research on semaphors also leads me to believe that if an application incremented a semaphor and crashed without decrementing the semaphore, then my semaphore count would be incorrect. Since the code in question is being run in a test environment, the possibility of abnormal terminations is higher than one would normally expect. Does this sound accurate to you? > Obviously there are other approaches: you could write transient pid files in > the Unix fashion, you could use Job objects to group your processes together > in one job: http://msdn.microsoft.com/en-us/library/ms684161%28VS.85%29.aspx What are your thoughts on using a pre-assigned list of mutexes. An application would walk a list of named mutex's trying to lock one for itself. If an application iterated through a list of mutex's without securing one for itself, it would exit. The advantage of mutex's over semaphores would be that applications that terminate abnormally would have their mutex released, while applications using semaphors that terminated abnormally would leave their semaphore with an incorrect count? The disadvantage of using mutex's vs. semaphores is that the time to find a free mutex might be much slower than the time to simply increment or decrement a semaphor. On the other hand, one of my colleagues claims that neither semphores or mutuxes will be visible to other Terminal Service users. In other words, all I will be able to do with semaphores and mutex's is to make sure a SPECIFIC user doesn't run an application more than once. Put another way, there may be no such thing as Global (that are visible across user sessions) semaphores and mutex's. So I'm back to thinking about your PID file idea :) Regards, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Technique to limit number of instances of our application under Terminal Server
Greg, Very clever! Thank you, Malcolm - Original message - From: "Greg Ewing" To: "zz Python Win32 Newsgroup" Date: Sat, 13 Mar 2010 00:15:19 +1300 Subject: Re: [python-win32] Technique to limit number of instances of our application under Terminal Server Here's another possible solution. Each process tries to open a socket connection to a server process. When the maximum number of processes are connected, the server stops accepting connections. The server also selects all of its open connections for reading. When a process dies, the server will notice because it will see an EOF condition on its connection. -- Greg _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32 _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Technique to limit number of instances of our application under Terminal Server
Hi Mark, > It sounds like you are after a named semaphore in the "Global\\" namespace. The semaphore count should work fine when your process terminates abnormally ... Thanks for your help. I'm experimenting with the semaphore concept and I think its possible for my semaphore counts to fall out of sync in certain situations. In a perfect world, semaphores look like a great solution, but I may need to fall back to my idea of a collection of mutex's. Admittedly this is an awkward solution, but mutex's seem to be a very reliable way to determine whether a process is holding a resource or not, eg. they consistently get released when a process terminates abnormally. - Original message - From: "Mark Hammond" To: pyt...@bdurham.com Cc: "Tim Golden" , "zz Python Win32 Newsgroup" Date: Thu, 11 Mar 2010 12:52:43 +1100 Subject: Re: [python-win32] Technique to limit number of instances of our application under Terminal Server It sounds like you are after a named semaphore in the "Global\\" namespace. The semaphore count should work fine when your process terminates abnormally - but will not if it simply hangs - so something will need to terminate a hung process before the semaphore becomes available. HTH, Mark On 11/03/2010 8:16 AM, pyt...@bdurham.com wrote: > Hi Tim, > >> It's not quite clear whether you want something which you can build into the >> application itself > > Yes, since I control the source code, this is a feature I would like to > build into my applications. > >> ... in which case, the answer's probably Semaphores: >> http://msdn.microsoft.com/en-us/library/ms685129%28VS.85%29.aspx > > Thanks for that link. My understanding is that semaphores only to apply > to threads within a single running application? > > On the other hand, perhaps the term 'threads' applies to applications as > well? I say that because the term thread is used to describe mutex's > which I've used on a program vs. thread basis. > > Microsoft's description of Mutex's > http://msdn.microsoft.com/en-us/library/ms684266%28VS.85%29.aspx > > My research on semaphors also leads me to believe that if an application > incremented a semaphor and crashed without decrementing the semaphore, > then my semaphore count would be incorrect. Since the code in question > is being run in a test environment, the possibility of abnormal > terminations is higher than one would normally expect. Does this sound > accurate to you? > >> Obviously there are other approaches: you could write transient pid files in >> the Unix fashion, you could use Job objects to group your processes together >> in one job: > http://msdn.microsoft.com/en-us/library/ms684161%28VS.85%29.aspx > > What are your thoughts on using a pre-assigned list of mutexes. An > application would walk a list of named mutex's trying to lock one for > itself. If an application iterated through a list of mutex's without > securing one for itself, it would exit. > > The advantage of mutex's over semaphores would be that applications that > terminate abnormally would have their mutex released, while applications > using semaphors that terminated abnormally would leave their semaphore > with an incorrect count? > > The disadvantage of using mutex's vs. semaphores is that the time to > find a free mutex might be much slower than the time to simply increment > or decrement a semaphor. > > On the other hand, one of my colleagues claims that neither semphores or > mutuxes will be visible to other Terminal Service users. In other words, > all I will be able to do with semaphores and mutex's is to make sure a > SPECIFIC user doesn't run an application more than once. Put another > way, there may be no such thing as Global (that are visible across user > sessions) semaphores and mutex's. > > So I'm back to thinking about your PID file idea :) > > Regards, > Malcolm > ___ > python-win32 mailing list > python-win32@python.org > http://mail.python.org/mailman/listinfo/python-win32 ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Technique to limit number of instances of our application under Terminal Server
Hi Link, > If the limit is one, then a lazy and dirty way is to bind to a tcp port (just pick a fixed one that's not used by other services - you could make it configurable), and exit if the bind fails. An excellent idea. I'm leaning towards either this idea or a collection of mutexes. Thanks for your feedback, Mal _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Technique to limit number of instances of our application under Terminal Server
Tim, Thank you for your example code and ideas!! I think my earlier experiments with semaphores may be the result of my poor code vs. your approach :) I'm going to put aside my pool of mutex's idea and experiment with your sample code. Regards, Malcolm - Original message - From: "Tim Golden" To: Cc: "zz Python Win32 Newsgroup" Date: Thu, 11 Mar 2010 15:31:22 + Subject: Re: [python-win32] Technique to limit number of instances of our application under Terminal Server On 10/03/2010 21:16, pyt...@bdurham.com wrote: > Hi Tim, > >> It's not quite clear whether you want something which you can build into the >> application itself > > Yes, since I control the source code, this is a feature I would like to > build into my applications. > >> ... in which case, the answer's probably Semaphores: >> http://msdn.microsoft.com/en-us/library/ms685129%28VS.85%29.aspx > > Thanks for that link. My understanding is that semaphores only to apply > to threads within a single running application? You can use semaphores (and mutexes, which are basically semaphores with a count of one) cross-process by naming them: import time import win32event s1 = win32event.CreateSemaphore (None, 4, 4, u"tims-app") try: win32event.WaitForSingleObject (s1, -1) time.sleep (10) finally: win32event.ReleaseSemaphore (s1, 1) If you run this micro-app in five separate windows, the fifth edition will block until one of the others completes. If you're using terminal services, you'll have to use the "global\" prefix to the name to allow it to be seen by other TS sessions. Note that the pywin32 docs for CreateSemaphore are wrong; I think they're a hybrid of the CreateEvent and CreateSemaphore signature. Follow the ms docs literally as I do above and you're fine. > My research on semaphors also leads me to believe that if an application > incremented a semaphor and crashed without decrementing the semaphore, > then my semaphore count would be incorrect. I think you're ok if you crash. Either the finally: clause above will take care of things or -- I imagine, altho' I don't know for sure -- the process will release all its handles when it dies, including its semaphore. > What are your thoughts on using a pre-assigned list of mutexes. An > application would walk a list of named mutex's trying to lock one for > itself. If an application iterated through a list of mutex's without > securing one for itself, it would exit. I think this is to some extent re-inventing semaphores with a homebrew numbering system. > The advantage of mutex's over semaphores would be that applications that > terminate abnormally would have their mutex released, while applications > using semaphors that terminated abnormally would leave their semaphore > with an incorrect count? See above; I don't this mutexes and semaphores differ in this respect. TJG _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32 ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Technique to limit number of instances of our application under Terminal Server
Hi Christopher, Thanks for your thoughts. I'm going to go back and re-test the semaphor strategy using Tim's sample code. My situation is very unusual in that the apps being run are often buggy because they are early releases of software being tested by a small team of testers. Our test team seems to test on a random schedule (of course they would argue otherwise!) which means there are spikes in demand on our server. The code I'm trying to write doesn't need to be perfect - it just needs to be good enough to protect us from ourselves :) On the other hand, you might be suprised how many times our apps get abnormally terminated so we do need a fairly accurate way to track running instances or the entire process is not worth pursuing. Regards, Malcolm - Original message - From: "Christopher Nilsson" To: "Tim Golden" Cc: "zz Python Win32 Newsgroup" Date: Fri, 12 Mar 2010 12:38:29 +1100 Subject: Re: [python-win32] Technique to limit number of instances of our application under Terminal Server Hi all, On 12 March 2010 02:31, Tim Golden <[1]m...@timgolden.me.uk> wrote: The advantage of mutex's over semaphores would be that applications that terminate abnormally would have their mutex released, while applications using semaphors that terminated abnormally would leave their semaphore with an incorrect count? See above; I don't this mutexes and semaphores differ in this respect. Actually, if you take the example of someone calling TerminateProcess() against the process (or some other equally fatal do-not-pass-the-finally-block abnormal exits), they will be different. In this case, a mutex will be unlocked, and another process' waiting thread will get a WAIT_ABANDONED wake up. For semaphores, the handles will be mopped up, but the available count on that semaphore will not be incremented. So if you've got lots of other processes coming and being killed in this way, you can easily run out of slots, even though there is only one handle open on the thing. It's a pity, since the semaphore way of doing this is much cleaner and faster than the "bunch of mutexes" method. If you've got some other way to guarantee that you'll see such processes vanish (eg. grab a SYNCHRONIZE handle on it via OpenProcess() -- these will get signalled when the process dies normally or abnormally), then it's still workable, since you can then call ReleaseSemaphore() yourself -- without having to wait for the original holder to do it. But now you've got two problems (limit instances *and* notice when they die). :) Or, maybe it's an acceptable risk. How badly do you want to fight TerminateProcess / death by Task Manager anyway? And you could argue that other kinds of abnormal explosions are bugs that need fixing. My vote would definitely be for the semaphore method. Cheers, Chris. _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32 References 1. mailto:m...@timgolden.me.uk _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Technique to limit number of instances of our application under Terminal Server
Hi Tim, Before continuing I want to express how grateful I am to you and all the others that have joined this thread. THANK-YOU, THANK-YOU, THANK-YOU! > Be aware of Christopher Nilsson's point that while the Mutex will be released > if the holding process crashes hard, the Semaphore will not release its > token. (Haven't tried this myself; I'm assuming he's had experience or has > read the docs more carefully than me). This is actually what I saw, too, but thought it was a subtle problem with how I coded my tests. > The bind-to-a-socket approach is a good general-purpose solution. (It can be > used on any socket-based system where binding semantics disallow simultaneous > connections). I like this idea (and Windows seems to disallow simultaneous connections), but at a high level, I'm not sure how managing a pool of sockets is any different than managing a pool of mutex's? I haven't tried it yet, but intuitively I would think that a pool of mutex's would be faster to iterate through and more resource efficient? Regards, Malcolm - Original message - From: "Tim Golden" To: Cc: "zz Python Win32 Newsgroup" Date: Fri, 12 Mar 2010 14:31:54 + Subject: Re: [python-win32] Technique to limit number of instances of our application under Terminal Server On 12/03/2010 14:21, pyt...@bdurham.com wrote: > Tim, > > Thank you for your example code and ideas!! > > I think my earlier experiments with semaphores may be the result of my > poor code vs. your approach :) > > I'm going to put aside my pool of mutex's idea and experiment with your > sample code. Good luck. Be aware of Christopher Nilsson's point that while the Mutex will be released if the holding process crashes hard, the Semaphore will not release its token. (Haven't tried this myself; I'm assuming he's had experience or has read the docs more carefully than me). The bind-to-a-socket approach is a good general-purpose solution. (It can be used on any socket-based system where binding semantics disallow simultaneous connections). Greg Ewing's "control server" is the kind of thing you'd be doing for license control, eg, and has the advantage he points out about detecting dead session. But it has the overhead of a control process. Which may or may not be an issue for you. TJG ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32 ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Python Windows Socket problem after Py2exe and install
> Are any of your imports buried inside "if" or "def" statements? py2exe uses a
> module-finding technique that doesn't work with those, and you'll either need
> to change your code or list the modules in setup.py
We have import's embedded in 'if' blocks and py2exe seems to be picking
these up fine.
We also have some applications that were making some dynamic imports
that py2exe naturally wouldn't know about. We solved this problem by
making sure we included almost all the modules's in python's standard
library ('the kitchen sink strategy'). We did this by placing a huge
list of imports inside a 'if False:' block.
Our strategy for deciding what modules to include (import) in our py2exe
project is detailed in my Mar 9 post to this forum titled 'Choosing a
collection of common modules/packages for a general purpose reusable
PY2EXE runtime'. This post got zero feedback so our idea is either too
stupid or too obvious to warrant further conversation :)
Malcolm
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Re: [python-win32] Python Windows Socket problem after Py2exe and install
Tom, > You don't need to add a whole load of imports inside a "if False" block to make py2exe add them. If I recall correctly there is a option in py2exe to force exclude and include modules when compiling. DOH! You're right! I've been doing a lot of work with our automated build cycle and I must have looked at 100 different setup.py's. We do use these features to fine tune our py2exe setup scripts for each application. We just missed using these features for forcing our large 'standard library (kitchen sink)' collection of modules. Good catch! Thank you, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] MAPI with win32com
Werner,
I'm not sure I understand the benefit of being locked into the
proprietary and awkward MAPI protocol?
Why can't you use industry standard SMTP to send your messages? Simpler
and more portable.
Malcolm
- Original message -
From: "Werner F. Bruhin"
To: python-win32@python.org
Date: Mon, 22 Mar 2010 13:40:52 +0100
Subject: Re: [python-win32] MAPI with win32com
Tim,
Thanks for the quick response.
On 22/03/2010 12:26, Tim Golden wrote:
> On 22/03/2010 11:22, Werner F. Bruhin wrote:
>> On 22/03/2010 12:06, Werner F. Bruhin wrote:
>>> I am trying to use MAPI to send an email using win32com, but I get the
>>> following exception.
>>>
>>> from win32com.client import Dispatch
>>> s = Dispatch("Mapi.Session")
>>> Traceback (most recent call last):
>>> File "", line 1, in
>>> File "C:\Python25\lib\site-packages\win32com\client\__init__.py", line
>>> 95, in Dispatch
>>> dispatch, userName =
>>> dynamic._GetGoodDispatchAndUserName(dispatch,userName,clsctx)
>>> File "C:\Python25\lib\site-packages\win32com\client\dynamic.py", line
>>> 98, in _GetGoodDispatchAndUserName
>>> return (_GetGoodDispatch(IDispatch, clsctx), userName)
>>> File "C:\Python25\lib\site-packages\win32com\client\dynamic.py", line
>>> 78, in _GetGoodDispatch
>>> IDispatch = pythoncom.CoCreateInstance(IDispatch, None, clsctx,
>>> pythoncom.IID_IDispatch)
>>> com_error: (-2147221005, 'Cha\xeene de classe incorrecte', None, None)
>>>
>>> I first tried this having Thunderbird as my MAPI client, then installed
>>> Windows Live Email (I want to test MAPI with one of the "newer" MS Mail
>>> clients) and defined it as the MAPI client (Default Programs - MAPI),
>>> still same result.
>>>
>>> Any hints on what I am doing wrong here would be very much welcomed.
>>>
>>> I am on Windows 7, Python 2.5.4, py2in32 build 210.
>>>
>>> Werner
>> Just came accross Tim Golden's site
>> (http://timgolden.me.uk/python/win32_how_do_i/read-my-outlook-inbox.html)
>> and
>> tried this:
>>
>> session = win32com.client.gencache.EnsureDispatch ("MAPI.Session")
>>
>> But I do get the same exception.
>
> Have a look at:
>
> http://kb.mozillazine.org/MAPI_Support
>
> which explains that TB (like OE) only supports "Simple MAPI". There's
> a whole confusion of terminology around this area, but I'm afraid that
> the bottom line is: the only client which really supports CDO, ie
> MAPI.Session
> is the full Outlook client. It's just about possible to use CDO without
> installing Outlook (by installing some standalone package whose name
> escapes me)
I found this:
http://www.microsoft.com/downloads/details.aspx?FamilyID=E17E7F31-079A-43A9-BFF2-0A110307611E&displaylang=en
At least I get past the above error, will see how far I get with this.
but that still only gives you access to Exchange, not to
> whatever interface TB exposes.
Clients and me using TB are fine, I support that with the simplemapi.py
(http://www.johnnypops.demon.co.uk/python/simplemapi.py) and it works
fine, but clients who use Outlook (e.g. Office 11) get a MAPI error 2
(failure).
>
> TJG
I don't want to use Outlook, but I like to provide an additional way of
sending problem reports from within my application to me (MAPI,
smtplib), so hoped that I could use extended MAPI stuff.
I guess I just have to get my hands onto an Outlook to be able to test
this stuff.
Werner
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Re: [python-win32] MAPI with win32com
Werner, > I do offer the SMTP option using smtplib which works great, but some clients don't know/like to fill in the configuration stuff needed and others really want to see in their email client of choice the email to go out and it also gives them the record/archive of what has been sent. We solved the configuration issues by posting to a PHP form that in turn sends out our emails. We solved the record/archive concern by bcc-ing the customer's email with a copy of what was being sent. Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Win API call to display a BMP/PNG file as a splash screen for a console app?
Is there a Windows API call I can use to display a BMP or a PNG file in a window centered on a user's display? This function would be called from a console app to display a splash screen. Motivation: I would like some of our customer facing Python console utilities to display a splash screen. I don't need the complexity of a full GUI framework like wxPython or pyQT and hopefully I can avoid the need to use a full library like PIL. Thank you, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Win API call to display a BMP/PNG file as a splash screen for a console app?
Hi Tony,
Thanks for the wxPython code. My reason for wanting to avoid
wxPython (and pyQt) is that I don't want to ship the wxPython
framework just to display a splash screen. I believe this might
triple the size of my PY2EXE generated executables - not a
worthwhile tradeoff for a cosmetic feature like a splash screen.
Regards,
Malcolm
- Original message -
From: "Tony Cappellini"
To: python-win32@python.org
Cc: pyt...@bdurham.com
Date: Mon, 22 Mar 2010 15:47:47 -0700
Subject: Re:Win API call to display a BMP/PNG file as a splash
screen for a console app?
From: [1]pyt...@bdurham.com
To: "zz Python Win32 Newsgroup" <[2]python-wi...@python.org>
Subject: [python-win32] Win API call to display a BMP/PNG file as
a
splash screen for a console app?
Message-ID:
<[3]1269295703.32357.1366163...@webmail.messagingengine.com>
Content-Type: text/plain; charset="us-ascii"
>>Is there a Windows API call I can use to display a BMP or a PNG
>>file in a window centered on a user's display? This function
>>would be called from a console app to display a splash screen.
I don't know, but I suspect not.
>>complexity of a full GUI framework like wxPython or pyQT and
To do this in wxPython is approximately 10 lines of code, maybe
20 at the most.
Actually- the # of lines to do this in wxPython is less than your
original email.
class SketchApp(wx.App):
def OnInit(self):
bmp = wx.Image("splash.png").ConvertToBitmap()
wx.SplashScreen(bmp, wx.SPLASH_CENTRE_ON_SCREEN |
wx.SPLASH_TIMEOUT,
1000, None, -1)
wx.Yield()
frame = SketchFrame(None)
frame.Show(True)
self.SetTopWindow(frame)
return True
if __name__ == '__main__':
app = SketchApp(False)
app.MainLoop()
This is barebones, taken from wxPython In Action- ideally you
should have some minimal exception handling
to make your app more robust.
References
1. mailto:pyt...@bdurham.com
2. mailto:python-win32@python.org
3. mailto:1269295703.32357.1366163...@webmail.messagingengine.com
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[python-win32] Detect OS shutdown or user logout
Any suggestions on how I can have a Python script detect when its operating system is shutting down or a user is logging out? The script in question is a local web server (based on CherryPy). Thank you, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] ide for python 3.x
Vineet, > > Till now, I have been programming with VFP & MySQL. Check out dabodev.org. Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Creating a list of stress tests for unit tests involving files
I'm working on a set of unit tests designed to stress test some file handling capabilities of our application. Listed below are some file names designed to cause failures when used with open/codecs.open and with the os/shutil module file functions. Can anyone think of additional scenarios (path names or unusual file access) that we could test against? My tests will initially be for the Windows platform (2000-Windows 7), but I would welcome Linux and/or Mac specific failure conditions as well. UNITTEST_DRIVE_NOT_READY = r'a:' UNITTEST_DRIVE_READ_ONLY = r'g:' # CD drive with CD UNITTEST_UNC_NOT_EXIST = r'\\unc_not_exist' UNITTEST_FILE_BAD_CHARS = r'path_bad_chars_*<>|' UNITTEST_FILE_NO_WRITE = r'c:\program files' UNITTEST_FILE_NOT_EXIST = r'\path_not_exist' UNITTEST_FILE_LOCKED = r'file_locked.tmp' unittest_file_locked = open( UNITTEST_FILE_LOCKED, 'w' ) UNITTEST_UNICODE_PATH= ur'\xunicode_test_\xb0_\xb1_' Thank you, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Possible to update exe file properties and/or icon via the win32api library?
Is it possible to update an exe file's properties and/or icon file via the win32api library? By exe file properties I mean the properties typically set via a resource file when an exe file is created. Example properties are what one would see if they right clicked on a file in Windows Explorer and chose the Properties dialog. Sample exe file properties: - product name - product version - product description - copyright - exe icon Use case: We have a single exe whose file properties we would like to customize for specific customers. An alternative question would be is there a way to update an exe's file properties using an external resource file? Or would I be better off finding a Windows utility that might allow me to script exe resource file updates? Thank you, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Simple Windows progressbar dialog (like messagebox) via Win32 API?
I know there is a simple interface to the Windows messagebox interface. Is there an equivalent type of simple dialog box for showing a progressbar or progressbar-like information? Use case: I have a collection of Python command line utilties that can take up to several minutes to run. These are utilities may be called from other applications. Our users have asked whether these utilities can display a progressbar while they are running. Our utilities are very lean right now and easy to distribute and support. We would like to avoid having to use Tkinter or large GUI frameworks like wxPython and pyQt if at all possible. Thank you, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Simple Windows progressbar dialog (like messagebox) via Win32 API?
Tim, > If you look in site-packages\pythonwin\pywin\Demos, you'll find > "progressbar.py". This is a Python wrapper around the MFC CProgressCtrl > class. You might be able to adapt that to do what you need, although I'm not > sure MFC is any lighter weight than Tkinter. I'm already using the Python Win32 extensions, so the progressbar.py example might be a good fit for me. I tested it from the command line on Windows 7 and was surprised that the progressbar control looked like it was from Windows 95. Any suggestions on how to have the progressbar get rendered with Themes support? Or is this related to the use of manifest files? Thanks for your help, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Simple Windows progressbar dialog (like messagebox) via Win32 API?
Tony, >Try Easy Dialogs > http://www.averdevelopment.com/python/EasyDialogs.html > > It has a progress bar. Easy Dialogs just wraps the native OS calls, and makes > them sensible & cross platform. > > Using a progress bar is only a few lines of code. Thanks for this recommendation. This looks like a great solution that's very light weight. I just tried this library on my Windows 7 system and was surprised to see an old-fashioned (Windows 95 like) progressbar. Do you have any ideas on how I might activate Theme support with this library so the progressbar gets displayed using a Windows 7 style look? Thanks for your help, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Using Win32 API to get around Tkinter limitations?
Wondering if there are ways to use the Win32 API to get around the following Tkinter limitations? 1. Inability to set custom mouse cursors via *.cur/*.ani files. 2. Determine the height or width of window properties such as titlebar, left/right and bottom window frame edges? Thank you, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Using Win32 API to get around Tkinter limitations?
Eric,
The short answer (for people searching the archives) is that the
cursor='@\path\to\cursor_file.cur' technique DOES work exactly as
advertised ... when used in a script run outside of IDLE (I know,
I know ... never test Tkinter code in IDLE!).
> Did you try it?
Yes. Running Python 2.7 (32-bit) on Windows 7 (64-bit), from
within IDLE, I received the following traceback:
Traceback (most recent call last):
File "", line 1, in
widget.config( cursor='@help.cur' )
File "C:\Python27\lib\lib-tk\Tkinter.py", line 1202, in configure
return self._configure('configure', cnf, kw)
File "C:\Python27\lib\lib-tk\Tkinter.py", line 1193, in
_configure
self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
TclError: bad cursor spec "@help.cur"
Thanks for your feedback!
Malcolm
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Re: [python-win32] [Tkinter-discuss] Using Win32 API to get around Tkinter limitations?
Hi Igor, > Why not use conventional tcl/tk functionality? It seems tcl/tk allows to use cur/ani files for custom cursor: > [1]http://wiki.tcl.tk/8674 Thanks for your response. You are correct, under Windows the cursor='@path/to/file.ext' technique works as expected. I had tried that, but from within IDLE (Python 2.7) this syntax raises an exception. Using this technique in scripts running from the command line (outside of IDLE) works well. Malcolm References 1. http://wiki.tcl.tk/8674 ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Win32 equivalent of VB doevents() or just use time.sleep()?
We have a bunch of command line utilities that use all the CPU capacity available to them. Our customer has asked us to find ways we might make these utilities more system friendly by occassionally calling what they refered to as a win32 equivalent of VB's (Visual Basic) doevents() function. I googled this topic and found a Mark Hammond suggestion with qualifications[1]: win32gui.Pump(Waiting)Messages Is there a recommended way to run our utilities in a more CPU friendly way? I was thinking of calling time.sleep( P ) every N iterations through our processing but I'm not clear on the pros and cons of this technique vs. a strategy that proactively pumps waiting messages. Malcolm [1] http://mail.python.org/pipermail/python-win32/2005-October/003920 .html _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Prevent a (Tkinter) window from maximizing via win32 api call?
If I have a windows handle to my Tkinter window, is there a win32 api call that I can use that will prevent my window from being maximized? There is no way to prevent a resizable window from being maximized in Tkinter other than to remove the window's border and titlebar (both of which I would like to keep). Thank you, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Prevent a (Tkinter) window from maximizing via win32 api call?
Hi Eric, > Are you sure about that? I just tried: My original question said "resizable window" :) I have a *resizable* Tkinter window with min and max sizes set. I want to prevent users from attempting to maximize this window because the window pops over to the upper left of the display - a behavior that my users find very frustrating (and of little value). I can trap the maximize event in Tkinter by binding to a window's event, but the Tkinter raises the event *after* it has maximized the window so I can't cancel the maximize behavior. Thanks for your help! Malcolm On 2 déc. 10, at 12:49, [1]pyt...@bdurham.com wrote: If I have a windows handle to my Tkinter window, is there a win32 api call that I can use that will prevent my window from being maximized? There is no way to prevent a resizable window from being maximized in Tkinter other than to remove the window's border and titlebar (both of which I would like to keep). References 1. mailto:pyt...@bdurham.com ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] DVCS options for pywin32
Mark, I've heard very good things about github which provides free (open source) and paid hosting plans for your projects. https://github.com/ We're considering moving our proprietary code base to the paid version of this service. Cheers, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Detect new/changed file in a folder
I'm looking for advice on ways to have a script detect new or changed files in a specific folder. The easy way is to simply poll every second and to sleep between polling cycles. Is there a win32 technique that works from XP forward that might be a better choice? And/or are there issues with a simple polling technique that I should be aware of? Thank you, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Detect new/changed file in a folder
Tim, Ben and Brian, Thank you all for your posts - excellent information(!!!). You have all answered my question. Cheers, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] win32print.StartDocPrinter
Anthony, Dabo (dabodev.com) is an open source GUI framework built on top of wxPython. Dabo has a very impressive report writer. Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] manipulating service action restart behavior?
Andrew, Thanks for sharing the solution! Regards, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Detecting user (in)activity and changing process prioritization?
Is there a way to detect user (in)activity so that a program I have running in the background might use more system resources when a user isn't actively using their system and when user activity is detected, run in a more resource friendly mode? On a related note, is it possible to change the priority of a running process, or can the priority of a Windows process only be set when the process is launched? Thanks, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Passing an object to a process
What about logging to a database? Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] DIR reports file timestamp and size, but os.path.getctime(), os.path.getsize() raise WindowsError [Error 5] Access is denied
Wondering if any of you have stumbled across the following behavior: I'm doing a recursive directory listing of my Windows folder and I can access the timestamps and file sizes of all files except the following 6 files: In the \windows\microsoft.net\framework\v2.0.50727\config folder: enterprisesec.config.cch.6824.14057640 security.config.cch.6824.14057640 In the \windows\\microsoft.net\framework64\v2.0.50727\config folder: \enterprisesec.config.cch.4412.14151427 enterprisesec.config.cch.6912.14056844 security.config.cch.4412.14151427 security.config.cch.6912.14056844 When I attempt to do any of the following on the above files, a WindowsError exception is raised with a value of "[Error 5] Access is denied: ...". os.path.getctime() os.path.getatime() os.path.getmtime() os.path.getsize() What's strange is that the DIR command from a cmd prompt returns timestamps and file sizes for the above files. Background; 64-bit Windows 7; 32-bit Python 2.7.2 Any ideas on how I can retrieve timestamps and file sizes like DIR without raising exceptions? Thank you, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to invoke Python program from Windows service?
>> For reference, this is the kind of pattern I use when writing Windows >> Services in Python: > This is incredibly useful. Thank you. +1 Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] remote copy with compress/decompress
Hello, I'm wondering if i try a good solution for the following problem: We have an old DOS Application running on a W2K-Server which uses normal DOS-print and a workstation(w2k) in an outlet connected to the server via VPN. The workstation uses remote desktop to run the software and prints to LPT 1,2,3 on the server. If I redirect the servers LPT's to a lokal printer of the workstation, printing is to slow. So I need a solution for this. My solution is as follow: 1: capture DOS-print to file =>solved 2: compress printfile => solved 3: open a socket, transfer file to desktop 4: decompress file step 3 and 4 is to develop a socket with python 5: print it on lokal printer => solved What do you think about it. I think of sockets because step 4 should be done automatically when the file arrives at the workstation. Otherwise I have to check a directory on the workstation for incomming files every 20 seconds. Sorry, for asking a question that is not pure python. But I'm still learning and to know that python is not good for that, helps me also out :-) regards, Jürgen - This mail sent through IMP: http://horde.org/imp/ ___ Python-win32 mailing list [EMAIL PROTECTED] http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] remote copy with compress/decompress
Hello Jens, hello all,
thanks for your replay. I tried your solution first and get some errors.
Independing of the size in socket.recv and f.read I allways get an empty
datastring after 1770 bytes. But I found a similiar solution here
http://mail.python.org/pipermail/python-list/2002-July/111754.html. This code
uses struct instead of pickle and that works for me. I don't know if one of this
solutions has some advantages/disadvantages, but I will try it laiter again with
pickle.
But I have some more questions:
1) If the serverside runs in inifitiv loop, the 'break into running code'
funktion of pythonwin doesn't works, because it is a system call. Is there a way
to stop the programm using a shortcut ?
2) Maybe I want to install the serverside as a service like it is described in
Mark's book. Then step 1) can be solved by stopping the service. Is it save to
run it this way:
>s = socket(AF_INET,SOCK_STREAM)
>s.bind(('',PORT))
>s.listen(1)
>while True:
> q,v = s.accept()
> ... rest of code, s and q are not closed
or have I to use threads or what ever else to make sure that the socket is still
listening ? When I tried this code, I get sometimes 'conection refused' errors
after the serverside runs for longer time.
regards,
Jürgen
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[python-win32] Re: remote copy wiht compress/decompress
Hello Jens, again thanks for your help and code examples. I think I can develop a full windows conform application with your code, Mark's book and the pipeTestService example - hope so :-). But there is one point: pythonservice.exe has to be registered once per computer and the register process fails if python is not installed on that machine. I have to install this service on a users computer without python. Normally I run Gordon McMillans Installer and ship the exe-file to the users computer. Is there a way to register the pythonservice without installing python, or run the service without register pythonservice ? regards, Jürgen - This mail sent through IMP: http://horde.org/imp/ ___ Python-win32 mailing list [EMAIL PROTECTED] http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Geting values from a thread
Hi all, I am wondering about the following situation: I defined a class and inside this class I start a new thread with thread.start_new_thread. When I set some attributes of that class inside the thread_function, the attributes are not changed. class test: def __init__(self): self.param='' thread.start_new_thread(self.run_thread,()) def run_thread(self): self.param='hello' return t=test() print t.param #result is an empty string The run_thread function operates on the same object but all changes are lost when the thread returns. How can I pass values from the thread function to the main thread ? regards, Jürgen - This mail sent through IMP: http://horde.org/imp/ ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
AW: [python-win32] Geting values from a thread
Hi, > That's the whole advantage of threads: they run independently. Yes, of course thats the reason. But I struggled into that problem, when I tried to send LogInfoMsg to the eventlog. (W2K,p2.3.3.pywin202) def SvcDoRun(self): import servicemanager servicemanager.LogMsg( servicemanager.EVENTLOG_INFORMATION_TYPE, servicemanager.PYS_SERVICE_STARTED, (self._svc_name_, '')) while True: retval=win32event.WaitForMultipleObjects (self.close_evt,self.accept_evt),False,win32event.INFINITE) if retval == win32event.WAIT_OBJECT_0: win32file.CloseHandle(self.accept_evt) self.socket.close() servicemanager.LogMsg( servicemanager.EVENTLOG_INFORMATION_TYPE, servicemanager.PYS_SERVICE_STOPPED, (self._svc_name_, '')) return elif retval == win32event.WAIT_OBJECT_0 + 1: thread.start_new_thread(self.FetchData,(self.socket,)) def FetchData(self,socket): ##code import servicemanager message= 'Processed %d bytes for client connection and printed out on port %s' % (value1,value2) ##value 1,2 set inside the FetchData code servicemanager.LogInfoMsg(message) If the service runs in debug mode, the message is written to the console. If the service runs normal (with 'start' parameter) no message send to the eventlog (no error message, no exit code, nothing happens). If I put the message line and the LogInfoMsg line under thread.start_new_thread the message is send to the eventlog, but I cannot pass the two values of the FetchData function. That's the whole problem. Don't know how to solve :-( regards, Jürgen - This mail sent through IMP: http://horde.org/imp/ ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] (no subject)
Hello, after more than a day I found a solution by myself :-)) The Solution: In the old code the LogInfoMsg is the last statement before the return statement (in the FetchData function). If I put an other statement between LogInfoMsg and return statement it works in debug and in start modus - don't know if this only appears on my machines ?(tested with w2k pywin202/nt04 sp6 pywin203, both p2.3.3). Is that a feature or a bug? regards, Jürgen >> That's the whole advantage of threads: they run independently. >Yes, of course thats the reason. But I struggled into that problem, when I >tried to send LogInfoMsg to the eventlog. > >def SvcDoRun(self): > >import servicemanager >servicemanager.LogMsg( >servicemanager.EVENTLOG_INFORMATION_TYPE, >servicemanager.PYS_SERVICE_STARTED, >(self._svc_name_, '')) > >while True: > retval=win32event.WaitForMultipleObjects((self.close_evt,self.accept_evt), False,win32event.INFINITE) >if retval == win32event.WAIT_OBJECT_0: >win32file.CloseHandle(self.accept_evt) >self.socket.close() >servicemanager.LogMsg( >servicemanager.EVENTLOG_INFORMATION_TYPE, >servicemanager.PYS_SERVICE_STOPPED, >(self._svc_name_, '')) >return > >elif retval == win32event.WAIT_OBJECT_0 + 1: > >thread.start_new_thread(self.FetchData,(self.socket,)) > > >def FetchData(self,socket): > ##code > import servicemanager > message= 'Processed %d bytes for client connection and printed out on > >port %s' \ >% (value1,value2) ##set inside the FetchData code > servicemanager.LogInfoMsg(message) > > >If the service runs in debug mode, the message is written to the console. If >the service runs normal (with 'start' parameter) no message send to the >eventlog (no error message, no exit code, nothing happens). If I put the >message line and the LogInfoMsg line under thread.start_new_thread the message >is send to the eventlog, but I cannot pass the two values of the FetchData >function. >That's the whole problem. Don't know how to solve :-( >regards, >Jürgen ----- This mail sent through IMP: http://horde.org/imp/ ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Re: remote copy wiht compress/decompress
Hi, thank you all for your hints and helps. I have now a working solution. But there is still a little problem and as I investigate in services and threads I like to see it running. If the socket-connection operates in the local network everything works fine. But if it operates over a VPN-connetion it post the following error message: size = q.recv(HDR_SZ) socket.error: (10035, 'The socket operation could not complete without blocking' If I use the first version of the programm without running as service it works over VPN too. So it seems to be a time problem. The socket doc declares that sockets start with 'blocking' as the default mode. I tried to use setblocking and settimeout in various ways but that doesn't change anything. What can I do examine the problem further ? regards, Jürgen - This mail sent through IMP: http://horde.org/imp/ _______ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] getting global addressbook with extended mapi
Hi all, Mark wrote: >Why? Is something missing, or it just tricky? > >Sadly, if you want easy, you use CDO/Simple MAPI. Extended MAPI is not for >the faint hearted (or for people with deadlines :) I think, that's not a matter of to be clench or not. Diving into a crazy organized library with poor and peripheral dokumentation is just waste of time. But anyway, if there are more faint hearted outside, here is the code working for me: from win32com.mapi.mapitags import * from win32com.mapi import mapi from win32com.mapi import mapiutil profileName = "Test" session = mapi.MAPIInitialize(None) session =mapi.MAPILogonEx(0,profileName,None, mapi.MAPI_EXTENDED | mapi.MAPI_LOGON_UI |\ mapi.MAPI_NO_MAIL |mapi.MAPI_USE_DEFAULT) hr=session.OpenAddressBook(0,None,mapi.AB_NO_DIALOG) ##open rootcontainer root=hr.OpenEntry(None,None,mapi.MAPI_BEST_ACCESS) ##get items root_htab=root.GetHierarchyTable(0) ##restrict for GAL ##SPropValue should be 'DT_GLOBAL' but not defined in mapitags DT_GLOBAL=131072 restriction = (mapi.RES_PROPERTY, (1, PR_DISPLAY_TYPE, (PR_DISPLAY_TYPE, DT_GLOBAL))) ## get GAL's entryid tuple gal_id = mapi.HrQueryAllRows(root_htab, (PR_ENTRYID), restriction, None, 0) ## extract GAL's entryid gal_id = gal_id[0][0][1] ## open GAL gal=hr.OpenEntry(gal_id,None,mapi.MAPI_BEST_ACCESS) ## get content gal_list=gal.GetContentsTable(0) ## no readable tagname for smpt PR_SMTP=972947486 rows = mapi.HrQueryAllRows(gal_list, (PR_ENTRYID, PR_DISPLAY_NAME_A,PR_ACCOUNT,PR_SMTP), None, None, 0) for eid,name,alias,smtp in rows: print name[1],alias[1],smtp[1] mapi.MAPIUninitialize() PS.: Expanding a distribution lists of the GAL needs to set the address type of that dl to 'MAPIPDL', but I'm lacking the permissions - crazy, crazy regards, Jürgen - This mail sent through IMP: http://horde.org/imp/ ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] win32gui.SetCapture
Hi, the following code pyhdl=win32gui.FindWindow(None,'PythonWin') win32gui.SetForegroundWindow(pyhdl) win32gui.SetCapture(pyhdl) results in: Traceback (most recent call last): File "C:\Python24\Lib\site-packages\pythonwin\pywin\framework\scriptutils.py", line 310, in RunScript exec codeObject in __main__.__dict__ File "C:\test\screen\screen_capture.py", line 51, in ? win32gui.SetCapture(pyhdl) error: (0, 'SetCapture', 'No error message is available') Any hints ? regards, Jürgen - Versandt durch den Webmaildienst der LDC GmbH Bonn ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Overlay Icon Question and network drives
Hi Andrea, the code in my first link was from the mercurial extension TortoiseHG. They found some issues that the icon overlay slows down network devices. See here: https://sourceforge.net/tracker/index.php?func=detail&aid=1892791&group_id=199155&atid=968354 Could you please tell if you have the same issues with the code Roger posted ? Thanks, Jürgen - Versandt durch den Webmaildienst der LDC GmbH Bonn ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Hide the console as soon as the script starts.
Antony, If you're just trying to hide the console Window, rename your python script with a *.pyw file extension or launch it via pythonw.exe vs. python.exe. I have no idea how to have a Python application display an icon in the System Tray (vs. Taskbar). That's a very interesting question. Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Is WMI ever disabled?
I've been enjoying a lot of the WMI examples posted on this mailing list. Does anyone know if WMI is ever fully or partially disabled by corporate customers, eg. as a way to secure workstations? I'm trying to figure out how confident one can be about assuming WMI functionality will be available on real-world 'locked-down' corporate workstations. Thank you, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Request for comments
Tim, 1. Layout (color, font, margins) looks great. 2. Home page: a. Include a next (page) link in header/footer? b. Include an about page with brief note about site's reStructuredText markup and Sphinx. Include a brief description of the Show Source links (cool!). 3. Getting Started page: a. Include links to pywin32 and comtypes downloads. 4. When I randomly walked the site, the previous/next links in the headers and footers don't seem to link to what I would consider the previous/next logical pages. Looking forward to reading your site. Regards, Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Request for comments
Tim, Some ideas for high-level sections: - Creating COM components - Interfacing to COM components - Creating NT services - Sending/receiving Windows messages - Interfacing to the clipboard - Interfacing to DDE - Monitoring processes (Task Manager stats on a process) - Reading/writing NT Event logs The News2News site may give you (and your audience) some ideas as well. >From this site's about page: QUOTE: Welcome to the FoxPro WinAPI Online Reference, your source of information on how to use Windows API functions in Visual FoxPro. Several hundred proven FoxPro code samples make the core of this reference. Use "copy and paste" and try them now. Sometimes a line of code is worth a dozen of pages and hours of online searching. http://news2news.com/vfp/index.php Malcolm _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Capturing a Python script's Task Manager statistics
Anyone know of a way to have a Python script capture its own Task Manager statistics? I have a long running Python script whose CPU, memory, disk i/o, and network traffic I would like to monitor. An alternative more generic approach would be to run an 'observer' script that would monitor all Task Manager statistics so I could watch multiple scripts. Motivation: I would like to track this script's resource requirements and if the script detects its exceeding some pre-defined resource limits for a certain amount of time, to send out an alert. Any suggestions (or recommendation on a 3rd party that does the same) appreciated. Thank you, Malcolm ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] win32com in a 64bit laptop
I just got a 64bit laptop and install python 2.7.2 (Windows AMD64 / Intel 64
/ X86-64 binary) and other packages. When i run the previous file, I find to
import win32com.client bc the program needs to read a word document as
follows:
app = win32com.client.gencache.EnsureDispatch('Word.Application')
self.doc = app.Documents.Open(...)
Can someone tell me how I should do here? Thanks.
Bill
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Re: [python-win32] win32com in a 64bit laptop
Thanks for the reply. I removed the Softwares and reinstall them with 32bit again. But I have the following questions: 1. When installing xlutils1.4.1.win32, I got the following errors: couldn't create key for i) xlutils-py2.7; ii) python 2.7 xltuils-1.4.1 Then I got the error "Couldn't set key value" for "...\Removexlutils.exe" -u "...\xltuils-wininst.log" 2. Next, when installing win32com, i got the following error msg twice: The program can't start because python23.dll is missing from your computer... When I run my previous program, I got a runtime error as follows: Traceback (most recent call last): File "J:\MyProjects\Python\MySVD\src\SVDDecomposition.py", line 19, in from xlutils.copy import copy File "F:\Softwares\Working\Languages\Python27\lib\site-packages\xlutils\copy.py", line 7, in from xlutils.filter import process,XLRDReader,XLWTWriter File "F:\Softwares\Working\Languages\Python27\lib\site-packages\xlutils\filter.py", line 9, in import xlrd,xlwt ImportError: No module named xlwt How can I fix it? Thanks. Bill Mark Hammond-4 wrote: > > If your version of Word is 32bit (which it probably is), you should just > stick with the 32bit version of Python - it works fine on a 64bit machine. > > HTH, > > Mark > > -- View this message in context: http://old.nabble.com/win32com-in-a-64bit-laptop-tp32741987p32745032.html Sent from the Python - python-win32 mailing list archive at Nabble.com. ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] win32com in a 64bit laptop
I got python from: www.python.org/download and choose •Python 2.7.2 Windows Installer (Windows binary -- does not include source) It should be a good version too, right? What I did is to remove all the 64bit versions and reinstall these software systems for win32. Thanks in advance. Bill Michel Claveau wrote: > > Hi! > >> Python27 >> The program can't start because python23.dll... > > Perhaps a bad version of pywin32... > > @-salutations > -- > Michel Claveau > > _______ > python-win32 mailing list > python-win32@python.org > http://mail.python.org/mailman/listinfo/python-win32 > > -- View this message in context: http://old.nabble.com/win32com-in-a-64bit-laptop-tp32741987p32747181.html Sent from the Python - python-win32 mailing list archive at Nabble.com. ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Response.Flush not working
Hi All, I searched for this but couldn't find it anywhere: I've just started running Python in Classic ASP, and would like to Response.Flush periodically on a page with a lot of processing behind it. However, it seems to have no effect. I confirmed that Response.Buffer = True. Any suggestions? Regards, Ryan McGreal _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] DDE Server Poke
Hi, I'm new to pywin32 and DDE. I'm trying to create a DDE server that interfaces an Excel Worksheet. Excel will act as a client in order to read from and write to the server. I had no problem implementing the Request operation (*). But I failed to implement Poke operation in the server. Any hint or sample code on how to implement DDE Poke ? Thanks, Jon. (*) Based on http://www.google.com/codesearch/p?hl=es#OAMlx_jo-ck/tools/third_party/python_26/Lib/site-packages/win32/Demos/dde/ddeserver.py&q=dde%20lang:python&sa=N&cd=1&ct=rc _______ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] pywintypes.com_error- no data source was provided when sending outlook attachment
Hello,Iam trying to send an email through outlook 2010 on a win 7 64 bit oswith
python 2.7 32 bit and win32com 32 bit. I am using the same codeexample found in
many Google search results. This chunk of code willrun fine if I rem out the
attachment, but once I try adding theattachment, I get an error about 'no data
source provided'. Thissame sample of code appears to work fine in many
instances, but I'vealso seen this error appear on the net since 2002. I've also
changedthe attachment line use this format, and have tried it myself, butno
luck#newMail.Attachments.Add('Location', olByValue, 1, 'Description')
I've named changed the name of the attachment every way possible (r'c:\test.txt
c:\test.txt c:\\test.txt) and I've placed it in other directories, but still
the same error.
Any suggestions
importwin32com.clientolMailItem = 0x0
obj = win32com.client.Dispatch("Outlook.Application")
newMail = obj.CreateItem(olMailItem)
newMail.Subject = "I AM SUBJECT!!"
newMail.Body = "I AM IN THE BODY\nSO AM I!!!"
newMail.To = "them...@mail.org"
#newMail.CC = "moreaddresses here"
#newMail.BCC = "aaa"
attachment1 = r'c:\test.txt'
newMail.Attachments.Add(attachment1)
newMail.Send()
pywintypes.com_error: (-2147352567, 'Exception occurred.', (4096, 'Microsoft
Outlook', 'Cannot add the attachment; no data source was provided.',
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[python-win32] wincom32.client problem?
I ahve been trying to communicate with an Instrument GUI using python and a
COM Object. This is quite simple using wincom32, but somethind with this
client required additional extension not needed in other lunguages. I wander
id someone here has experience and can explain how to solve this.in VBS,
PAscal and C# the commands are quite simple, after creting the object in
VBS: set app = CreateObject("LeCroy.XStreamDSO")in Python is similar:import
win32com.clientapp=win32com.client.Dispatch("LeCroy.XStreamDSO") done this
the object I can use is "app"the commands are in
VBS:app.Acquisition.Horizontal.MaxSamplesOrRateDownapp.Acquisition.Horizontal.MaxSamplesOrRateUpapp.Acquisition.TriggerMode
= "single"app.Measure.ClearSweepsin Python I have to add .ActNow() to make
them work to some of these commands, and I do not understand why, I will
have to
use:app.Acquisition.Horizontal.MaxSamplesOrRateDown.ActNow()app.Acquisition.Horizontal.MaxSamplesOrRateUp.ActNow()app.Acquisition.TriggerMode
= "single"app.Measure.ClearSweeps.ActNow()In C#(Visualstudio 2017) and
Pascal (Lazarus) I do not have this problem, only in Python.can someone
help?thanks
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[python-win32] Opening existing memory mapped files with pywin32
Hello. Sorry if this is the wrong place to ask my question. I am trying to open a memory mapped file using Python. I originally used the "mmap" module from Python however I had issues with it because I had to use a fixed size for the file even though my goal was to open an existing file of which the size would be unknown. I am now using the "mmapfile.mmapfile" function. My code looks like [this](https://pastebin.com/QygT2wp6). In the [docs](http://timgolden.me.uk/pywin32-docs/mmapfile__mmapfile_meth.html) it says I can use a file name of "None" if I'm planning on opening an existing file. [This](https://pastebin.com/2FVhpDiB) is the error I get when running my code. I'm a novice Python user and I don't know much at all about the Windows API. Thanks in advance for any help!_______ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Clipboard Documentation
Hi Tim, Thanks for the reply. I read about that but was hoping to use pywin32. I can see now the folly of that decision. I have a working minimal test but am looking for something a bit more automated. I bring my app window to the top using pywin32 and a line I need is already highlighted. I can ctrl-c from the keyboard and pyperclip works just fine. However, since the line is already highlighted is there a way to get it without user interaction (ctrl-c)? On 11/29/2021 6:52 PM, Tim Roberts wrote: Dennis Putnam wrote: I'm using pywin32 and it is my understanding it can also be used for copying text from an app to the clipboard. I have been able to find scant documentation for that. Can someone send me a link to some definitive documentation? TIA. The easy way is to use the well-respected `pyperclip` module. You can install it with pip. The Win32 clipboard APIs are a pain to work with, and of course don't work at all on other systems. _______ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32 _______ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Clipboard Documentation
On 12/1/2021 3:07 AM, Tim Roberts wrote: On 11/30/21 7:04 AM, gw1500 via python-win32 wrote: Thanks for the reply. I read about that but was hoping to use pywin32. I can see now the folly of that decision. I have a working minimal test but am looking for something a bit more automated. I bring my app window to the top using pywin32 and a line I need is already highlighted. I can ctrl-c from the keyboard and pyperclip works just fine. However, since the line is already highlighted is there a way to get it without user interaction (ctrl-c)? I don't know how much trouble you want to go to. If you can get the window handle of the text box that has your text, you can send a WM_COPY message to it. With the standard controls, that tells it to do a "copy" operation with the currently selected text. Hi Tim, Thanks. That was what I wanted to know. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Clipboard Documentation
Hi Dietmar,
Thanks. I lot to it but I'll give it a try.
On 12/1/2021 11:33 AM, Dietmar Schwertberger wrote:
I've been using the code below for 20 years now for text copy & paste.
No guarantees, though.
Regards,
Dietmar
def copy_to_clipboard(text, window_handle=0):
"""copy_to_clipboard(window_handle, text):
copy a string to the clipboard."""
win32clipboard.OpenClipboard(window_handle)
try:
win32clipboard.EmptyClipboard()
if sys.version_info.major==2:
is_unicode = isinstance(text, str)
else:
is_unicode = True
if is_unicode:
win32clipboard.SetClipboardData(win32clipboard.CF_UNICODETEXT, text)
else:
win32clipboard.SetClipboardText(text)
finally:
win32clipboard.CloseClipboard()
_formats = {}
def _format_to_number(format):
if not format in _formats:
number = win32clipboard.RegisterClipboardFormat(format)
_formats[format] = number
return _formats[format]
#def copy_from_clipboard(format=win32clipboard.CF_TEXT, window_handle=0):
def copy_from_clipboard(format=win32clipboard.CF_UNICODETEXT,
window_handle=0):
win32clipboard.OpenClipboard(window_handle)
if isinstance(format, str):
format = _format_to_number(format)
try:
ret = win32clipboard.GetClipboardData(format)
except TypeError:
return None
finally:
win32clipboard.CloseClipboard()
return ret
#def check_clipboard_format(format=win32clipboard.CF_TEXT,
window_handle=0):
def check_clipboard_format(format=win32clipboard.CF_UNICODETEXT,
window_handle=0):
if isinstance(format, str):
format = _format_to_number(format)
win32clipboard.OpenClipboard(window_handle)
try:
return win32clipboard.IsClipboardFormatAvailable(format)
finally:
win32clipboard.CloseClipboard()
def get_clipboard_formats(window_handle=0):
format = 0
formats = []
win32clipboard.OpenClipboard(window_handle)
standard_formats = {}
for n in dir(win32clipboard):
if not n.startswith("CF_"): continue
standard_formats[getattr(win32clipboard, n)] = n[3:]
try:
while True:
format = win32clipboard.EnumClipboardFormats(format)
if not format:
break
if format in standard_formats:
formats.append(standard_formats[format])
else:
formats.append(
win32clipboard.GetClipboardFormatName(format) )
finally:
win32clipboard.CloseClipboard()
return formats
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Re: [python-win32] python-win32 Digest, Vol 232, Issue 1
I've had my challenges with 3.10 and stayed on 3.9, with good results. Sent from Android On Tue, Oct 11, 2022 at 11:00, python-win32-requ...@python.org wrote: Send python-win32 mailing list submissions to python-win32@python.org To subscribe or unsubscribe via the World Wide Web, visit https://mail.python.org/mailman/listinfo/python-win32 or, via email, send a message with subject or body 'help' to python-win32-requ...@python.org You can reach the person managing the list at python-win32-ow...@python.org When replying, please edit your Subject line so it is more specific than "Re: Contents of python-win32 digest..." Today's Topics: 1. Unpredictable behavior of pywin32 on new computer (Zach York) 2. Re: Unpredictable behavior of pywin32 on new computer (Tim Roberts) -- Message: 1 Date: Mon, 10 Oct 2022 12:34:43 -0700 From: Zach York To: python-win32@python.org Subject: [python-win32] Unpredictable behavior of pywin32 on new computer Message-ID: Content-Type: text/plain; charset="utf-8" Hello, I have recently upgraded my computer and after upgrading and installing pywin32, I have found the behavior to be extremely unpredictable and in a lot of cases, just wrong. Environment: Python 3.10 (upgraded from python 3.9 on the previous computer) pywin32 304 Windows 10: 19044.2006 My scripts are mostly trying to do some background clicking using PostMessage/SendMessage and window resizing/positioning using MoveWindow. I used to be able to use SendMessage reliably before this computer upgrade, but now it seems like I need a combination of PostMessage + SendMessage to see a click at all). For MoveWindow, the results are entirely unpredictable (window isn't moved at all, window resized and moved to the wrong location, etc). I assume this has to somehow be with my setup and not pywin32, but I am lost on what might be causing this weird behavior. Any insight would be greatly appreciated! Thanks, Zach -- next part -- An HTML attachment was scrubbed... URL: <https://mail.python.org/pipermail/python-win32/attachments/20221010/b5e420d7/attachment-0001.html> -- Message: 2 Date: Mon, 10 Oct 2022 16:41:50 -0700 From: Tim Roberts To: python-win32@python.org Subject: Re: [python-win32] Unpredictable behavior of pywin32 on new computer Message-ID: Content-Type: text/plain; charset="utf-8"; Format="flowed" Zach York wrote: > > I have recently upgraded my computer and after upgrading and > installing pywin32, I have found the behavior to be extremely > unpredictable and in a lot of cases, just wrong. > ... > My scripts are mostly trying to do some background clicking using > PostMessage/SendMessage ?and window resizing/positioning using > MoveWindow. I used to be able to use SendMessage reliably before this > computer upgrade, but now it seems like I need a combination of > PostMessage?+ SendMessage to see a click at all). For MoveWindow, the > results are entirely unpredictable (window isn't moved at all, window > resized and moved to the wrong location, etc). > > I assume this has to somehow be with my setup and not pywin32, but I > am lost on what might be causing this weird behavior. Any insight > would be greatly appreciated! If you upgraded your display as well, the problem is probably the display scaling.? Unless you mark your application has being "high DPI aware", Windows will lie to you about pixel locations.? If your display is 3840x2160, but you have scaling set to 200%, your "non-aware" application will be told that the display is 1920x1080, and the pixel coordinates you are sending to other applications will be wrong.? Go read about "high DPI aware" applications.? It's a mess. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. -- next part -- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 3428 bytes Desc: S/MIME Cryptographic Signature URL: <https://mail.python.org/pipermail/python-win32/attachments/20221010/a6f92006/attachment-0001.bin> -- Subject: Digest Footer ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32 -- End of python-win32 Digest, Vol 232, Issue 1 **** ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
[python-win32] Pywin32 Windows Service not responding
Hi, I am looking for some assistance with utilizing pywin32 in order to create
a Windows Service.
I've tried to create as bare-bones of an application as I could inheriting from
win32serviceutil.ServiceFramework
import traceback
import win32serviceutil
import win32service
import win32event
import servicemanager
import socket
import time
import os
import sys
class MyService(win32serviceutil.ServiceFramework):
_svc_name_ = 'MyPythonService'
_svc_display_name_ = 'My Python Service'
_svc_description_ = 'This is a sample Python Wind
def __init__(self, args):
win32serviceutil.ServiceFramework.__init__(se
self.hWaitStop = win32event.CreateEvent(None,
socket.setdefaulttimeout(60)
self.is_alive = True
def SvcStop(self):
self.ReportServiceStatus(win32service.SERVICE
win32event.SetEvent(self.hWaitStop)
self.is_alive = False
def SvcDoRun(self):
self.ReportServiceStatus(win32service.SERVICE
self.ReportServiceStatus(win32service.SERVICE
# win32event.WaitForSingleObject(self.hWaitSt
try:
servicemanager.LogMsg(servicemanager.EVEN
PYS_SERVICE_STARTED, (self._svc_name_, ''))
self.main()
except Exception as ex:
servicemanager.LogErrorMsg("Exception in
eback.format_exc()))
raise
def main(self):
while self.is_alive:
with open('test.txt', 'a') as f:
f.write('Service loop...')
time.sleep(2)
if __name__ == '__main__':
if len(sys.argv) == 1:
servicemanager.Initialize()
servicemanager.PrepareToHostSingle(MyService)
servicemanager.StartServiceCtrlDispatcher()
else: win32serviceutil.HandleCommandLine(MyService)
I've installed it via opening an admin command prompt and running
python main.py install
It installs successfully but if I attempt to run it, I get
[image.png]
Or
>>python main.py start
> Starting service MyPythonService
> Error starting service: The service did not respond to the start or control
> request in a timely fashion.
debugging seems to work, or at least does not give any errors
> python main.py debug
> Debugging service MyPythonService - press Ctrl+C to stop.Info 0x40001002 -
> The MyPythonService service has started.
I believe my pywin32 is fully up to date
> python -m pip install --upgrade pywin32
> Requirement already satisfied: pywin32 in
> c:\users\jerem\appdata\local\programs\python\python311\lib\site-packages (305)
Misc
> python --version
> Python 3.11.2
[image.png]
Any assistance is very much appreciated!
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[python-win32] AddObject from C
Hi guys I am working with an embedded interpreter, how can I share an existing COM object from the C api ?(without using the ROT) Background: The host process is VB6 with a C helper DLL. I have stripped down the pywin32 library to compile directly into my helper dll with just the COM access features. Right now I can createobject() and getobject() in python using the new namespaces. Experimenting with using this for app automation similar to the microsoft script control and its addobject functionality. Bringing the COM code into my helper dll to see if I can get around not being able to call PyFinalize with the full library. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] AddObject from C
Seems to be solved:
/lib/site-packages/pycom/__init__.py
def GetObject(Pathname=None, Class=None, clsctx=None):
...if Class is not None:
return GetActiveObject(Class, clsctx)
else:
#first check to see if its an in process COM object shared from VB
before we check ROT
v = pycomint.HostResolver(Pathname);
#print(type(v)) # or
if v is not None:
return __WrapDispatch(v, Pathname, clsctx=clsctx)
else:
return Moniker(Pathname, clsctx)
PythonCOM.cpp
static PyObject *pythoncom_HostResolver(PyObject *self, PyObject *args)
{
int rv = 0;
char* s;
if(vbHostResolver == NULL) return Py_BuildValue("");
if (!PyArg_ParseTuple(args, "s", &s)) return Py_BuildValue("");
//PY_INTERFACE_PRECALL;
rv = vbHostResolver(s, 0, 0, 0);
//PY_INTERFACE_POSTCALL;
if (rv == 0) return Py_BuildValue("");
return PyCom_PyObjectFromIUnknown((IUnknown*)rv, IID_IDispatch, FALSE);
}
---
VB6 implementation
Public Function HostResolver(ByVal buf As Long, ByVal v1 As Long, ByVal v2 As
Long, ByVal v3 As Long) As Long
On Error Resume Next
Dim key As String
Dim o As Object
key = LCase(StringFromPointer(buf))
Set o = SharedObjects(key)
If Not o Is Nothing Then
HostResolver = ObjPtr(o)
Else
HostResolver = 0
End If
End Function
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[python-win32] VB6 Listbox methods fail through ROT
Wondering if anyone might have an insight on this.
If we add a vb6 listbox to the ROT, and try to access it using GetObjectwe can
not access any of its methods with an error "Member not found"
import win32com.client
form1 = win32com.client.GetObject('PyComTest.Form1')
form1.caption = "hi from vb!!" # works
#form1.Move(0) #pywintypes.com_error: (-2147352573, 'Member not found.', None,
None)
List1 = win32com.client.GetObject('PyComTest.List1')
#List1.AddItem('') #pywintypes.com_error: (-2147352573,
'Member not found.', None, None)
List1.Clear() #pywintypes.com_error: (-2147352573, 'Member not found.', None,
None)
--
as a sanity check both do work from vb script
Set form1 = GetObject("PyComTest.Form1")
form1.caption = "test"
form1.Move(0)
Set List1 = GetObject("PyComTest.List1")
List1.AddItem "***** VBS SAYS HELLO ***"
Currently using a vb6 standard exe manually adding objects to the ROT, and
python 311 exe to run the scripts externally.
I have not yet tried with a vb6 activex exe.
Most things do work like textboxes, form methods etc.
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[python-win32] __getattr__ Error
Hello together,
I am trying to automate a point cloud creation out of CATParts in CATIA.
The win32com client can access CATIA documents, but NOT methods and
attributes in the parts. I get the following error:
File
"C:\Users\th80im\source\repos\PythonPointCloudCreation\PythonPointCloudCreation\PythonPointCloudCreation\py37_env_1\lib\site-packages\win32com\client\dynamic.py",
line 638, in __getattr__
raise AttributeError("%s.%s" % (self._username_, attr))
AttributeError: .HybridShapes
I guess, there is something wrong with the registering of CATIA, or the
installation of the client? Or am I looking in the wrong direction?
Thank you & Best Regards
ioannis
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Re: [python-win32] How to correctly handle events using win32com ?
Hi there,
exactly, Mark is right on this.
You can use very COM object method as you use out of VBA for example.
I am working on a wrapper for a more "pythonized" access to the EXCEL
API, you may have alokk on it as soon as it is published.
BG
Chris
Am 29.11.2024 um 20:10 schrieb Mark Hammond:
It's been a while since I've done any of this, but I think there's an
"xlApp.Quit()" method you can use? If so, then you might be able to
break out of the look when "PumpWaitingMessages()" returns 1 - that
will mean the message queue has received a WM_QUIT.
On 2024-11-29 12:17 p.m., Gauthier ABRIAL wrote:
Hello,
I'm looking for some advice on how to correctly handle events using
win32com. If I take the example of a very simple Excel automation, I
tested two things.
*
Code1 below use pythoncom.PumpMessages() but I don't know how to
stop it when the Excel is closing. I guess I should send a
WM_QUIT message but I don't know how.
*
Code2 below use a while loop on pythoncom.PumpWaitingMessages()
but once I stop the loop the COM server freeze as it is waiting
for the messages it sends to be processed before closing. I guess
I should pump all the remaining messages but I don't know how.
Maybe I should use a totally different approach.
Thanks a lot for your help.
G.
Code1 Starts ---
import win32com.client as win32
import pythoncom
#The event handlers
class wbEvents:
def OnBeforeClose(self, Cancel):
print('Closing Workbook')
# Send WM_QUIT here ?
xlApp = win32.Dispatch("Excel.Application") #Open Excel
xlApp.Visible=True #Make Excel Visible
xlwb = xlApp.Workbooks.Add() #Create a workbook
ws=xlwb.Sheets("Sheet1") #Get the first worksheet
xl_events=win32.WithEvents(xlwb,wbEvents) #Add and Event handler
pythoncom.PumpMessages()
Code1 Ends ---
Code2 Starts ---
import win32com.client as win32
import pythoncom
import time
#The event handlers
class wbEvents:
def OnBeforeClose(self, Cancel):
print('Closing Workbook')
global keepOpen
keepOpen = False
xlApp = win32.Dispatch("Excel.Application") #Open Excel
xlApp.Visible=True #Make Excel Visible
xlwb = xlApp.Workbooks.Add() #Create a workbook
ws=xlwb.Sheets("Sheet1") #Get the first worksheet
xl_events=win32.WithEvents(xlwb,wbEvents) #Add and Event handler
# define initalizer
keepOpen = True
while keepOpen:
time.sleep(0.1)
pythoncom.PumpWaitingMessages()
-------- Code2 Ends ---
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[python-win32] Trouble with list iteration / comprehension for wrapped COM objects
Hi there, I am working on an EXCEL wrapper to "phytonize" access to EXCEL. I create a wrapper class for all objects classes derived from abasic wrapper class which mainly ensures that calls are snaked-case and pyhtonized calls work. I. e. workbokkobject.SaveAs, workbookobject.saveas and workbokkobject.save_as would all work. This is done by overloaded __getattr__ and __setattr__ methods. The "real" EXCEL object is stored in the attribute "_xlWrapped". The overloaded __getattr__ also ensures that when retrieving f. e. a workbook from the application wrapper, that the resulting EXCEL object is wrapped as well. I. e. let xlapp be my wrapped EXCEL then xlapp.active_workbook would return a reference to a wrapped Workbook object which contains the reference to the "real" EXCEL workbook object in the attribute _xlwrapped. I also overload __getitem__ to allow xlapp[1] as short for xlapp.workbooks(1). Some of these classes I do extend for example to check existence of a worksheet in a workbook. This as very brief introduction. Now I am struggeling with list comprehension and indexes. # access un-wrapped EXCEL print(xlapp._xlWrapped.Workbooks(1).Name) print(xlapp._xlWrapped.Workbooks(2).Name) for i, wb in enumerate(xlapp._xlWrapped.Workbooks): print(i, wb.Name) # access wrapped EXCEL print(xlapp.Workbooks(1).Name) print(xlapp.Workbooks(2).Name) for i, wb in enumerate(xlapp.Workbooks): print(i, wb.Name) This prints WB1.xls WB2.xls 0 WB1.xls 1 WB2.xls WB1.xls WB2.xls and aborts with an windows/COM error: ret = self._oleobj_.InvokeTypes(170, LCID, 2, (13, 0), ((12, 1),),Index ^ pywintypes.com_error: (-2147352567, 'Ausnahmefehler aufgetreten.', (0, None, None, None, 0, -2147352565), None) Obviously when looping via the wrapper object the index is not automatically adjusted. However, I must not increase the index by on in __getitem__ because then the index would alway be increased. It seems, püywin32 has some special support for list comprehension and index adjustment for COM objects? I haven't worked with an iterator before but is this the solution? Thanks in advance. Best Christoph _______ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Trouble with list iteration / comprehension for wrapped COM objects
Hi Mark, thanks for spending time on my question. Sometimes when you are writing, you are already on the way to the solution ... Actually I haven't worked with an iterator object before an was unsure how to do it. But sometimes you must simply try. With an iterator for the Office Collection object wrappers like my wrapper for Applicaiton.Workbooks in addition to the overloaded __getitem__ it seems to work. I plan to publish the package (alongside with a package with a COM object template class package for easening writing COM objects) as soon as I have done some test scripts ready. Probably it is of interest for you and the others here. Best regards Christoph Am 19.04.2025 um 04:31 schrieb Mark Hammond: I'm not sure what's going wrong here. Does fetching the list of workspaces as a simple list work? That would be a workaround, and feel free open an issue at https://github.com/mhammond/pywin32 since it shouldn't break that way. Cheers On 2025-04-18 8:33 p.m., dornech via python-win32 wrote: Hi there, I am working on an EXCEL wrapper to "phytonize" access to EXCEL. I create a wrapper class for all objects classes derived from abasic wrapper class which mainly ensures that calls are snaked-case and pyhtonized calls work. I. e. workbokkobject.SaveAs, workbookobject.saveas and workbokkobject.save_as would all work. This is done by overloaded __getattr__ and __setattr__ methods. The "real" EXCEL object is stored in the attribute "_xlWrapped". The overloaded __getattr__ also ensures that when retrieving f. e. a workbook from the application wrapper, that the resulting EXCEL object is wrapped as well. I. e. let xlapp be my wrapped EXCEL then xlapp.active_workbook would return a reference to a wrapped Workbook object which contains the reference to the "real" EXCEL workbook object in the attribute _xlwrapped. I also overload __getitem__ to allow xlapp[1] as short for xlapp.workbooks(1). Some of these classes I do extend for example to check existence of a worksheet in a workbook. This as very brief introduction. Now I am struggeling with list comprehension and indexes. # access un-wrapped EXCEL print(xlapp._xlWrapped.Workbooks(1).Name) print(xlapp._xlWrapped.Workbooks(2).Name) for i, wb in enumerate(xlapp._xlWrapped.Workbooks): print(i, wb.Name) # access wrapped EXCEL print(xlapp.Workbooks(1).Name) print(xlapp.Workbooks(2).Name) for i, wb in enumerate(xlapp.Workbooks): print(i, wb.Name) This prints WB1.xls WB2.xls 0 WB1.xls 1 WB2.xls WB1.xls WB2.xls and aborts with an windows/COM error: ret = self._oleobj_.InvokeTypes(170, LCID, 2, (13, 0), ((12, 1),),Index ^ pywintypes.com_error: (-2147352567, 'Ausnahmefehler aufgetreten.', (0, None, None, None, 0, -2147352565), None) Obviously when looping via the wrapper object the index is not automatically adjusted. However, I must not increase the index by on in __getitem__ because then the index would alway be increased. It seems, püywin32 has some special support for list comprehension and index adjustment for COM objects? I haven't worked with an iterator before but is this the solution? Thanks in advance. Best Christoph ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32 ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
[python-win32] PYTHON DEVELOPER with 3+ years Exp. ( Job Location : Hyderabad )
Hi We are looking for a PYTHON DEVELOPER with 3+ years Exp. · Strong in Python· Django framework· Good at Rest API· Decent communication skills· 3+ Years’ experience· Full time – Immediate Joinee Job Location : Hyderabad Please send your profile to appleinformat...@yahoo.com along with below detailsFull Name:Total Exp:Relevant Exp:CTC:ECTC:Notice Period:Are you available immediately for the position?Current Location:Open to relocate to Hyderabad: Thanks & Regards K.Seshagirirao Manager-Operations Apple Informatics www.appleinformatics.com 040-65144951,9000611370 ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Windows 10
It's not that "many programmers still refer to Windows API as Win32", it's that the Windows API itself has decided that that is what it is called. When you #define _WIN32 in a C or C++ program using the Windows API, it does not mean "this is a 32-bit app", it means "I'm using the Windows API". That's why you still define this even in 64-bit builds, for example, where you #define both _WIN32 and _WIN64. You're not wrong, but it's just that the problem goes deeper than what you make it sound :) The Windows API *is* the Win32 API and vice versa. They are synonyms. On Sun, Oct 25, 2015 at 11:24 PM eryksun wrote: > On 10/25/15, Laura Creighton wrote: > > > > Can I suggest a mailing list name change to reflect 64 bit windows? > > python-windows would be my suggestion .... > > I agree. This list is about programming in Python on Windows, so > python-windows is an obvious name and one that a novice programmer can > easily recognize. > > I think the name has yet to change because a lot of programmers still > refer to the Windows API as "Win32" instead of "WinAPI". Also, the > system directory on 64-bit Windows is still called "System32", and > many of the more well-known system DLLs still have "32" in the name, > such as the following: > > shell32, ole32, kernel32, crypt32, opengl32, > user32, advapi32, win32spl, comctl32, comdlg32, > gdi32, rasapi32, w32time, wldap32, ws2_32, > tapi32, cfgmgr32, imm32, msvfw32, clfsw32, > netapi32, wtsapi32, mssign32, secur32, riched32 > ___ > python-win32 mailing list > python-win32@python.org > https://mail.python.org/mailman/listinfo/python-win32 > ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Building my own C extension
Two questions: 1) Are you embedding this extension in your own application or do you only need to be able to load it into a stock Python distribution? 2) Is Python 3.5 out of the question? On Wed, Nov 4, 2015 at 5:10 PM Ken Brooks wrote: > I have joined this list because I need to learn how to rebuild my > antiquated Python extension properly for Windows. I need to build for > Python 2.7, which is old and relies upon old compilers. I downloaded the > suggested compiler: > > > http://download.microsoft.com/download/A/5/4/A54BADB6-9C3F-478D-8657-93B3FC9FE62D/vcsetup.exe > > I downloaded the thing that is supposed to correctly glue it to Python: > > > https://download.microsoft.com/download/7/9/6/796EF2E4-801B-4FC4-AB28-B59FBF6D907B/VCForPython27.msi > > But I can't see where to go from there. > > In my old world I never actually learned how to use distutils or > setuptools; I was just building my extension with my VC and then shoving it > into site-packages. As I read the documentation for distutils and > setuptools, I am SO LOST! I see much about how to install someone else's > package, but little about how to create and script my own package for > building a Python extension written in C. Please, can someone point me to a > good sample extension package that I can copy from? A "hello world" or > something? > > Apart from that, can someone please point me to the documentation for the > current "right" way of building things, as an extension developer? > > Thanks in advance, > > Ken > _______ > python-win32 mailing list > python-win32@python.org > https://mail.python.org/mailman/listinfo/python-win32 > ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Figuring out why a window is losing focus
Why do you need to use Python? Sounds like this is done very easily with Spy++ On Sun, Feb 7, 2016 at 10:12 AM Ram Rachum wrote: > Hi everybody, > > There's a problem in my Windows 7 machine that I want to diagnose using > Python. > > Once in a while, I'm noticing that focus is being stolen from the active > window and then immediately given back. For example, right now as I'm > writing this message to you in GMail, I see that the window title, once in > about 5 seconds, changes its color rapidly from active to inactive and then > to active again. This happens not only in Chrome but in any program. It > doesn't always happen, but it's been happening on some days during the last > few months. This is really annoying because if I opened a dropdown, for > example, this action makes the dropdown disappear. Another example is that > if I'm renaming a file in explorer, when the event happens it's as if I > pressed "enter" and the file gets the partial name before I finished > typing. > > I'm guessing that some app that's installed on my computer is causing > this, but I don't know which one. I want to use Python to figure out which > one. I want to set Python up to listen to WM_ACTIVATE events (or any other > kind of events? Please let me know) and write a log saying which program > the focus was passed to. I'm hoping that this way I can find the offending > program. > > I have no idea how to write a thing like this in Python, and whether this > is even possible. Can you please help me? > > > Thanks for your help, > Ram Rachum. > ___ > python-win32 mailing list > python-win32@python.org > https://mail.python.org/mailman/listinfo/python-win32 > ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Figuring out why a window is losing focus
You can log the messages going to a particular window. Just click Spy -> Log Messages. But it occurred to me you want to know *which* process is sending the message. I don't believe there's a way to do that short of hooking the native PostMessage and SendMessage Win32 APIs in every process running on the system. On Sun, Feb 7, 2016 at 1:19 PM Ram Rachum wrote: > Thanks for the reference to Spy++! I'm checking it out and it looks like a > useful program. But I don't understand, how do I use it to accomplish what > I wanted? > > On Sun, Feb 7, 2016 at 10:39 PM, Zachary Turner > wrote: > >> Why do you need to use Python? Sounds like this is done very easily with >> Spy++ >> >> On Sun, Feb 7, 2016 at 10:12 AM Ram Rachum wrote: >> >>> Hi everybody, >>> >>> There's a problem in my Windows 7 machine that I want to diagnose using >>> Python. >>> >>> Once in a while, I'm noticing that focus is being stolen from the active >>> window and then immediately given back. For example, right now as I'm >>> writing this message to you in GMail, I see that the window title, once in >>> about 5 seconds, changes its color rapidly from active to inactive and then >>> to active again. This happens not only in Chrome but in any program. It >>> doesn't always happen, but it's been happening on some days during the last >>> few months. This is really annoying because if I opened a dropdown, for >>> example, this action makes the dropdown disappear. Another example is that >>> if I'm renaming a file in explorer, when the event happens it's as if I >>> pressed "enter" and the file gets the partial name before I finished >>> typing. >>> >>> I'm guessing that some app that's installed on my computer is causing >>> this, but I don't know which one. I want to use Python to figure out which >>> one. I want to set Python up to listen to WM_ACTIVATE events (or any other >>> kind of events? Please let me know) and write a log saying which program >>> the focus was passed to. I'm hoping that this way I can find the offending >>> program. >>> >>> I have no idea how to write a thing like this in Python, and whether >>> this is even possible. Can you please help me? >>> >>> >>> Thanks for your help, >>> Ram Rachum. >>> ___ >>> python-win32 mailing list >>> python-win32@python.org >>> https://mail.python.org/mailman/listinfo/python-win32 >>> >> > ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Figuring out why a window is losing focus
It's included as part of Visual Studio. Download community edition, it should be there. On Mon, Feb 8, 2016 at 7:33 PM reckoner wrote: > > Where can I safely download this Spy program you are all talking about? > > Thanks! > > > > On 2/8/2016 9:00 AM, python-win32-requ...@python.org wrote: > > Re: Figuring out why a window is losing focus > _______ > python-win32 mailing list > python-win32@python.org > https://mail.python.org/mailman/listinfo/python-win32 > ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
[python-win32] Problem: methods defined in type library's base class are not accessible in inherited class objects of the type library
Hi all, I am a relatively new user of pywin32 package, but not Python. I have an application (written in C/#, as I understand) that provides a COM interface for using with other languages such as Python. I am using the pywin32 library to communicate with the application and it works fairly well. However, I am facing a particular kind of problem. The problem is that the application exposes some interface objects that inherit from other base objects but the methods defined in the base class objects doesn't seem to be accessible to the child class object. Is this type of behavior is atypical with pywin32? If so, what is the recommended way of addressing this problem? Currently, I am patching these methods in the child class object and delegating the calls to the parent object (using CastTo)) as shown in the pseudo-code below: class MyBaseClass: ... ... def my_parent_method(self): base = win32com.client.CastTo(self, 'MyParentClass') return base.my_parent_method() ... Although this strategy works, I would like to find out if there is a more efficient/ automatic way of resolving this issue. In my particular case, there are a large number of such objects (that inherit from some base class without access to the methods defined in the parent class) provided by the application and I would like to avoid re-writing all the methods for all such objects. I hope I have been able to explain my problem well. Thank you very much, Best regards, Indranil. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
[python-win32] Python in Visual Studio
For anybody who might be interested this is a podcast featuring Steve Dower from Microsoft https://talkpython.fm/episodes/show/53/python-in-visual-studio -- My fellow Pythonistas, ask not what our language can do for you, ask what you can do for our language. Mark Lawrence ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Python in Visual Studio
The debugger is good too. I don't know of any other tool that lets you seamlessly step between Python and native code when debugging a program which embeds Python On Sat, Apr 16, 2016 at 5:23 PM Alexander Walters wrote: > As a total aside, PTVS (part of the base VS 2015 install, IIRC) is now > my editor of choice when editing python on windows, edging out gvim > (...primarily because you can make vim bindings work in VS). It is a > really good editor, with really good code completion features... which > makes sense, considering how much money microsoft spent on intelisense. > > On 4/16/2016 16:56, Mark Lawrence via python-win32 wrote: > > For anybody who might be interested this is a podcast featuring Steve > > Dower from Microsoft > > https://talkpython.fm/episodes/show/53/python-in-visual-studio > > > > _______ > python-win32 mailing list > python-win32@python.org > https://mail.python.org/mailman/listinfo/python-win32 > _______ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
