Win32_Process.Create -- not starting process
I am using Python to create a process on another computer. Both
computers are on the same domain with admin privileges.
On computer B I have a batch script which starts a python script. From
computer A I am doing the following:
import wmi
w = wmi.WMI("1.2.3.4")
p = w.new("Win32_Process")
pid, retVal = p.Create(CommandLine="C:\\a_script.bat")
print pid, retVal
The output I get is, 1218 0 0 = "Successful Completion"
however the python script that is called from the batch script
never seems to run or at least only for a split second. Sometimes I
see python.exe appear in the task manager on computer B for a split
second then it goes away. So I went to computer B and double clicked
on the batch script, and sure enough a command opened up and the python
script was running...and stayed running...no problem. I should
mention, that sometimes it will execute the batch script and the Python
script will run and stay running. That has only happened after trying
to do "p.Create(CommandLine)" more than once, but not every time I
try.
Any ideas why its not working for me remotelyor why its random?
These are win xp machines with no firewalls running.
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Re: Win32_Process.Create -- not starting process
Tim, Ok, well I verified that my python script and batch script are working properly. In fact, if I double click on the batch script (when its on Computer B), it starts the python script and the script runs fine with no problem. However when I try to execute the batch script from computer A using WMI it doesnt start. I say that because the python script that gets executed writes a status message to a file, and that does not occur as well as Python.exe does not show up in the task manager, even though Win32_Process.Create returns a PID and a 0 for the return code. So, if I try the same process a second time...it works. python.exe is running, status message is written to a file, etc. Is there some sort of initialization that needs to be done? Thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: Win32_Process.Create -- not starting process
so far i tried adding SET > c:\tmp.txt start SET > c:\tmp2.txt ...and I saw both tmp files created but no python running. I still have to try skipping the batch file...i'll let u know. thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: Win32_Process.Create -- not starting process
Tim,
I am skipping using the batch file and only executing the python
script directly...and so far it works fine.
So now I have:
pid, retVal =
wmi.WMI("1.2.3.4").new("Win32_Process").Create(CommandLine="c:\python\python.exe
c:\some_script.py")
Thanks again...not sure why when using the batch file to start it
wouldnt always work, but as long is it works now!
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Re: Win32_Process.Create -- not starting process
Tim Golden wrote:
> BTW, I would recommend you either to use a raw string
> for that command line (r"c:\python\python.exe c:\xx.py") or
> to double up your slashes ("c:\\python\\python.exe c:\\xx.py").
> As it happens \p has no special meaning that I'm
> aware of, but better safe than sorry...
i used double slashes, i guess i didn't type it correctly here.
Thanks for the reminder though.
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Get parameters from URL using CGI
i want to create a CGI script which simply prints out values given via the URL (such as when a GET is performed). So if I have a script named, foo.cgi and I access it by going to: http://www.somesite.com/cgi-bin/foo.cgi?name=john&age=90 I want foo.cgi to print out: name: john age: 90 how do i get the values from the URL like that? thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: Get parameters from URL using CGI
Ian Leitch wrote:
> >>> from urlparse import urlparse
> >>> dict([n for n in [i.split('=') for i in
> urlparse('http://www.somesite.com/cgi-bin/foo.cgi?name=john&age=90')[4].split('&')]])
> {'age': '90', 'name': 'john'}
Ian, thanks for the reply, but that is not what I need to do. Inside
foo.cgi how can I parse out the values given in the URL?
So if you visit: http://www.somesite.com/cgi-bin/foo.cgi?valA=1&valB=2
.I want the script, foo.cgi to print out the parameters and their
values. It's dynamic so the values are url wont be the same all the
time. How do i get the URL from the script? does this make sense?
So I'm thinking foo.cgi will look like
[code]
url = getTheFullURL()
parse(url)
def parse(url):
# parse the parameter names and values
[/code]
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Format file size for printing
is there a built-in way of printing the size of a file nicely? So if the file size is 103803 bytes it prints out like: 103.8K or 0.1MB something liek that? -- http://mail.python.org/mailman/listinfo/python-list
Jython: exec a string
I have a single jython file, foo.py which contains multiple classes. I read that into a string and try to exec itbut I get errors saying something like unable to load class. It seems to work fine if foo.py only contains a single class, any ideas? -- http://mail.python.org/mailman/listinfo/python-list
Re: Jython: exec a string
the error i get when i run the exec is, "java.lang.ClassFormatError"... thanks -- http://mail.python.org/mailman/listinfo/python-list
Add file to zip, or replace file in zip
I have a script which zips up a directory, once it does with that
(before it closes the zip file) I want to replace a file that was added
to the zip, say "Foo.txt".
So I tried this...
[code]
z = zipfile.ZipFile("blah.zip", "w")
# zip the directory
#...
z.writestr("c:\\path\\to\\current\\foo_txt_file\\Foo.txt", "some new
data")
z.close()
All this does is add a new Foo.txt file in the zip alongside the
existing oneany suggestions?
Thanks
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PythonDoc Ant Task
Anyone ever use the PythonDoc ant task? I have the following... ...this is a cut out of the build xml i am using...but it shows the relevant parts. Anyways I can run my "pyDoc" target and it runs successful with no errors. a "docs" directory is created but is empty. Any idea as to why? My "src" folder contains a python file, Foo.py. which looks like this class Bar: def printMe(self): """This method prints my data""" print "some data is being printed" ...Thanks in advance. -- http://mail.python.org/mailman/listinfo/python-list
Re: PythonDoc Ant Task
i found that the problem is because of an import, which is strange. The imported module looks something like this [code] import time class Foo: pass class Bar: global javax.swing import javax.swing [/code] so it seems that pydoc cant giggity-giggit! -- http://mail.python.org/mailman/listinfo/python-list
Importing again and again
If I have code which imports a module over and over again...say each time a function is called, does that cause Python to actually re-import it...or will it skip it once the module has been imported?? for example: def foo(): import bar bar.printStuff() foo() foo() foo() foo() ...will that re-import bar 4 times...or just import it once? is this a big performance hit? thanks -- http://mail.python.org/mailman/listinfo/python-list
error: argument after ** must be a dictionary
I have class like this...
import threading
class MyBlah(object):
def __init__(self):
self.makeThread(self.blah, (4,9))
def blah(self, x, y):
print "X and Y:", x, y
def makeThread(self, func, args=(), kwargs={}):
threading.Thread(target=self.blah, args=args,
kwargs=kwargs).start()
When I do...
b = MyBlah()
I am getting this error:
TypeError: MyBlah object argument after ** must be a dictionary
What am I missing?
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Re: error: argument after ** must be a dictionary
Not sure if it matters, but this occurs when running a unittest. The trace back is: Traceback (most recent call last): File "C:\Python24\Lib\threading.py", line 442, in __bootstrap self.run() File "C:\Python24\Lib\threading.py", line 422, in run self.__target(*self.__args, **self.__kwargs) TypeError: MyTestCase object argument after ** must be a dictionary Unhandled exception in thread started by > -- http://mail.python.org/mailman/listinfo/python-list
Re: error: argument after ** must be a dictionary
i was missing "self" in my method signature! doh! -- http://mail.python.org/mailman/listinfo/python-list
PyCon2006 - will the content be available for download?
Anyone know if (and when) the talks from PyCon2006 will be available for download. I am particularly interested in the tutorials (as they did not have them at PyCono2005). Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: PyCon2006 - will the content be available for download?
Max M wrote: > http://us.pycon.org/AudioVideoRecording/HomePage Thanks, after going to the URL, I clicked "talks" and got to http://us.pycon.org/talks ...this page lets u pick which talks you want to access. thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: PyCon2006 - will the content be available for download?
well actually, the site looked promising...only problem is no talks have audio, video or handouts available (at least right now). oh well. -- http://mail.python.org/mailman/listinfo/python-list
pythoncom.PumpMessages - how to quit
When I call: pythoncom.PumpMessages() ...it blocks at that line. According to the docs, it says it will run until it receives a WM_QUITso I try to create a separate thread and do import win32api win32api.PostQuitMessage() ...but the code is still blocking at PumpMessages. Any ideas? other than killing python? thanks -- http://mail.python.org/mailman/listinfo/python-list
pythoncom.PumpMessages - how to quit
When I call: pythoncom.PumpMessages() ...it blocks at that line. According to the docs, it says it will run until it receives a WM_QUITso I try to create a separate thread and do import win32api win32api.PostQuitMessage() ...but the code is still blocking at PumpMessages. Any ideas? other than killing python? thanks -- http://mail.python.org/mailman/listinfo/python-list
pysqlite
anyone have v2.x of pysqlite that I could download? the website is down for a hardware upgrade with no date as to when it will be back. I checked sourceforge but there are no files there to download. thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: pysqlite
Dennis Lee Bieber wrote: > On 27 Mar 2006 10:17:21 -0800, "abcd" <[EMAIL PROTECTED]> declaimed > the following in comp.lang.python: > > > anyone have v2.x of pysqlite that I could download? the website is > > down for a hardware upgrade with no date as to when it will be back. > > > Source or binary (or everything)? Architecture? I need v 2.x for windows, running python v2.4 u can email it to me, codecraig _A_T_ gmail _D_O_T_ com thx -- http://mail.python.org/mailman/listinfo/python-list
Redirect output
I have a program which is written in C and interfaced with python via
Swig. However, the function I call prints stuff out to the console. I
would like to capture what it is printing out. I tried:
[code]
import MyCProg, sys
f = open("tmp.txt", "wb")
sys.stdout = f
MyCProg.getData()
f.close()
sys.stdout = sys.__stdout__
print open("tmp.txt", "rb").read()
[/code]
However, it just prints the data to the screen. I tried redirecting
stderr as well.
other than modifying the C code and re-generating the interface via
Swig, any ideas? just asking before i have to do that.
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How to determine an object is "scriptable"
I recently came across a problem where I saw this error: "TypeError: unsubscriptable object" How can I determine if an object is "scriptable" or "unscriptable"? -- http://mail.python.org/mailman/listinfo/python-list
Re: How to determine an object is "scriptable"
Richard Brodie wrote: > subscriptable: supports an indexing operator, like a list does. doesn't seem to be a builtin function or module...or is that just your definition of subscriptable? -- http://mail.python.org/mailman/listinfo/python-list
Re: How to determine an object is "scriptable"
Daniel Evers wrote: > Right. You can check this e.g. with > > hasattr(x, "__getitem__") > > because the __getitem__ method is used for indexing. Thanks...that is what I was looking for! -- http://mail.python.org/mailman/listinfo/python-list
Extend file type
I have a class which extends 'file'
class MyFile(file):
def __init__(self, fname, mode='r'):
file.__init__(self, fname, mode)
def write(self, str):
print "writing a string"
file.write(self, str)
def writelines(self, lines):
print "writing lines"
file.writelines(self, lines)
I use this with subprocess
f = MyFile('out.txt', 'w')
p = subprocess.Popen(cmd, stdout=f)
and I can see that stuff goes into out.txt.however, I never see
"writing a string" or "writing lines" from the class MyFile.
Any ideas what methods the stdout (and I guess stderr) of Popen objects
from subprocess call?
Any suggestions on how to find out? I did try adding to MyFile
def __call__(self, *args):
print "calling:", args
return file.__call__(self, *args)
but I never see that either.
thanks
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Strange Behavior
class Foo:
def __init__(self, name, data=[]):
self.name = name
self.data = data
def addData(self, val):
self.data.append(val)
f = Foo('a')
f.addData(1)
f.addData(2)
f2 = Foo('b')
print f.name, f.data
print f2.name, f2.data
OUTPUT
---
a [1, 2]
b [1, 2]
why would f and f2 contain the same data??
however, if I do this instead
f = Foo('a')
f.addData(1)
f.addData(2)
f2 = Foo('b', [])
print f.name, f.data
print f2.name, f2.data
OUTPUT
---
a [1, 2]
b []
Any ideas? is this a bug?
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Re: Strange Behavior
Rob Williscroft wrote: > http://docs.python.org/ref/function.html#l2h-619 thanks. weird that it works that way since they even state "This is generally not what was intended." oh well. -- http://mail.python.org/mailman/listinfo/python-list
Tertiary Operation
x = None result = (x is None and "" or str(x)) print result, type(result) --- OUTPUT --- None y = 5 result = (y is 5 and "it's five" or "it's not five") print result - OUTPUT - it's five ...what's wrong with the first operation I did with x? I was expecting "result" to be an empty string, not the str value of None. -- http://mail.python.org/mailman/listinfo/python-list
Re: Tertiary Operation
Carsten Haese wrote: > Use Python 2.5 where there is a true conditional > expression or find another way to solve your problem. python 2.5 once we upgrade (hopefully soon), anyways...an earlier post suggested the inverse... x = None result = (x is not None and str(x) or "") which works just fine. thanks. -- http://mail.python.org/mailman/listinfo/python-list
Problem creating animated gif
I am using gifmaker.py from PIL v1.1.5 on python 2.4.1.
CODE
import ImageGrab, gifmaker
seq = []
while keepOnGoing:
im = ImageGrab.grab()
seq.append(im)
fp = open("out.gif", "wb")
gifmaker.makedelta(fp, seq)
fp.close()
---
however I am getting this error:
Exception in thread Thread-3:
Traceback (most recent call last):
File "c:\Python24\lib\threading.py", line 442, in __bootstrap
self.run()
File "c:\foo.py", line 10, in run
gifmaker.makedelta(fp, seq)
File "c:\gifmaker.py", line 79, in makedelta
for s in getheader(im) + getdata(im):
File "c:\Python24\Lib\site-packages\PIL\GifImagePlugin.py", line 383,
in getdata
ImageFile._save(im, fp, [("gif", (0,0)+im.size, 0,
RAWMODE[im.mode])])
KeyError: 'RGB'
Any ideas? Basically I want to make an animated GIF out of a bunch of
images taken using the ImageGrab module.
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PIL: Image.draft -- what are the modes that I can use?
I have PIL 1.1.5 on python 2.4.1 and I am attempting to get a smaller
(file size) of an image.
for example:
im = ImageGrab.grab()
im.save("tmp.gif") about 1.7mb
im.save("tmp.jpeg") about 290kb
anyways I want to save the image as a GIF, but not have it be so
largeso I thought that the Image.draft method would be what I
wanted
im.draft(mode, size)
Configures the image file loader so it returns a version of the image
that as closely as possible matches the given mode and size. For
example, you can use this method to convert a colour JPEG to greyscale
while loading it, or to extract a 128x192 version from a PCD file.
.what 'modes' can I use? or is there another way to shrink the
size of the image (other than resizing it)?
thanks
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Re: Image.draft -- what are the modes that I can use?
Fredrik Lundh wrote: > GIF is horribly unsuitable for screenshots on modern machines. have you > considered using PNG ? > > or even better, Flash? well I am trying to take screenshots and make them into an animated GIF, however, putting them into a Flash movie would be coolany idea how to go about doing either with python? (windows, possibly linux later) -- http://mail.python.org/mailman/listinfo/python-list
Re: Image.draft -- what are the modes that I can use?
oh and vnc2swf would not be an option, i cant be setting up a vnc server, etc. just need to use python (and necessary packages). animated gif would probably be best i am assuming. -- http://mail.python.org/mailman/listinfo/python-list
Re: Image.draft -- what are the modes that I can use?
Fredrik Lundh wrote: > to repeat myself: > > here's a tool that lets you use VNC to capture the screen, and then > convert > the result to a flash animation: > >http://www.unixuser.org/~euske/vnc2swf/ > > is there a way to make animated GIFs with python? vnc2swf is to much for what i was hoping. i have no problem with installing python packages, but having to use VNC is a bit much. thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Image.draft -- what are the modes that I can use?
fredrik,
in other posts you have mentioned the use of gifmaker. i have tried
that with the following:
I am using gifmaker.py from PIL v1.1.5 on python 2.4.1.
CODE
import ImageGrab, gifmaker
seq = []
while keepOnGoing:
im = ImageGrab.grab()
seq.append(im)
fp = open("out.gif", "wb")
gifmaker.makedelta(fp, seq)
fp.close()
---
however I am getting this error:
Exception in thread Thread-3:
Traceback (most recent call last):
File "c:\Python24\lib\threading.py", line 442, in __bootstrap
self.run()
File "c:\foo.py", line 10, in run
gifmaker.makedelta(fp, seq)
File "c:\gifmaker.py", line 79, in makedelta
for s in getheader(im) + getdata(im):
File "c:\Python24\Lib\site-packages\PIL\GifImagePlugin.py", line 383,
in getdata
ImageFile._save(im, fp, [("gif", (0,0)+im.size, 0,
RAWMODE[im.mode])])
KeyError: 'RGB'
Any ideas? Basically I want to make an animated GIF out of a bunch of
images taken using the ImageGrab module.
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Re: Image.draft -- what are the modes that I can use?
Brett Hoerner wrote: > Are you sure you can't use VNC? An animated GIF based on full-screen > grabs will be amazingly huge and have very low color quality at the > same time. > > Installing VNC on Windows should take you about 30 seconds, honest. > > Or is this for some sort of project where you can't use anything but > CPython software...? > > Brett Hoerner the latter. -- http://mail.python.org/mailman/listinfo/python-list
Re: Image.draft -- what are the modes that I can use?
Gabriel Genellina wrote: > A VNC server is about 400K in size... Yea, VNC is not an option in my case. thanks anyway, perhaps I'll look into generating a slideshow using HTML/javascript which can load the images. -- http://mail.python.org/mailman/listinfo/python-list
wxPython TextCtrl - weird scrolling behavior
I have a TextCtrl which is set to be multi-line. I have a function say, updateText(msg), which takes some string and appends it to the text control... txtControl.AppendText(msg) however, if the text that I am appending would cause the scroll bars to appear/or scroll since the text is long the textcontrol appears to be blank, until you click on the scroll bar...then the text appears. Any ideas? is this is a sizer problem or a TextCtrl issue?? thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: wxPython TextCtrl - weird scrolling behavior
On Oct 30, 2:52 pm, John Salerno <[EMAIL PROTECTED]> wrote: Don't know for sure, but you can try calling the Refresh() method on the > text control and see if that fixes it. Didn't make a difference. Not sure what the problem is, I am wondering if it is a layout issue since that is my weak spot with wxPython. sizerTextPanel = wx.StaticBoxSizer(self.sizerTextPanel_staticbox, wx.HORIZONTAL) sizerTextPanel .Add(self.textPane, 1, wx.ALL|wx.EXPAND, 2) self.textPanel.SetAutoLayout(True) self.textPanel.SetSizer(sizerTextPanel ) sizerTextPanel .Fit(self.textPanel) sizerTextPanel .SetSizeHints(self.textPanel) sizerMainPanel.Add(self.textPanel, 3, wx.ALL|wx.EXPAND, 0) not sure if that means anything to anyone :) -- http://mail.python.org/mailman/listinfo/python-list
Re: wxPython TextCtrl - weird scrolling behavior
> But one question that comes to mind is, do you not add sizerTextPanel to > sizerMainPanel? I think all sub-sizers should be added to the main > sizer, unless there's some weird reason I don't know of. well i set the sizer on the textPanel and then I add the textPanel to sizerMainPanel -- http://mail.python.org/mailman/listinfo/python-list
Re: wxPython TextCtrl - weird scrolling behavior
On Oct 30, 3:47 pm, John Salerno <[EMAIL PROTECTED]> wrote: >I noticed that one object you refer to is > self.textPane, is that supposed to be self.textPanel? no, self.textPane is the actual wx.TextCtrl. I used a GUI Builder to the layout stuff...perhaps that's my problem :) is there a good site to refer to for how to use sizers? i am essentially creating a chat window (textPane is the history of the chat, then a textCtrl below it for typing a new message and a button next to the input field and buttons below the input field). -- http://mail.python.org/mailman/listinfo/python-list
Re: Python windows interactive.
> How do I do sometihing simple like that in python?
print "hello"
print "Jim"
> How do I enter line numbers, or if none, what do I do.
no line numbers needed
> Can the interpreter load a text file with my program in it?
read in a text file:
data = open("something.txt").read()
> How do I list a program or the parts of a program I am interested in
> looking at?
say you want to know what you can do with a list
x = [1,2,3,4,5]
dir(x)
help(x)
help(x.append)
>
> How do I run a python program?
create a file, type some code. then to at the end of the file (put
this)...
if __name__ == "__main__":
# call your functions here
this will let you run it from command line like this:
c:> python foo.py
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Re: wxPython TextCtrl - weird scrolling behavior
thanks for the feedback, I am watching the screencasts, which are helping already. I think I will try out the Dabo GUI tool since it uses wxPython...and see if I can get the code I need from it. thanks -- http://mail.python.org/mailman/listinfo/python-list
Quick Filter Dictionary
Hi,
I have a dictionary which may contain various keys/values, however,
it will always contain 'name' and 'age' keys.
This dictionary is kept inside a class, such as
class Person:
def __init__(self, name, age):
self.data = {'name' : name, 'age' : age}
def getData(self, includeNameAge=False):
if includeNameAge: return self.data
tmp =
del tmp['name']
del tmp['age']
return tmp
The getdata method should return the data stored for the
person, however, it should be able to return the data excluding the
'name' and 'age'. Any suggestions on how to best implement this?
Keep in mind this sample code is meant to be an example, I realize
that a person would probably always want the name and age returned.
thanks
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Re: Quick Filter Dictionary
On Mar 14, 7:29 am, "abcd" <[EMAIL PROTECTED]> wrote:
> Hi,
>I have a dictionary which may contain various keys/values, however,
> it will always contain 'name' and 'age' keys.
>
>This dictionary is kept inside a class, such as
>
> class Person:
> def __init__(self, name, age):
> self.data = {'name' : name, 'age' : age}
>
> def getData(self, includeNameAge=False):
> if includeNameAge: return self.data
> tmp =
> del tmp['name']
> del tmp['age']
> return tmp
>
>The getdata method should return the data stored for the
> person, however, it should be able to return the data excluding the
> 'name' and 'age'. Any suggestions on how to best implement this?
> Keep in mind this sample code is meant to be an example, I realize
> that a person would probably always want the name and age returned.
>
> thanks
I guess one solution might be
def getData(self, includeNameAge=False):
if includeNameAge: return self.data
return dict(filter(lambda item: item[0] not in ('name', 'age'),
self.data.items()))
any other suggestions, improvements?
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wxTextCtrl - copy and paste 65, 000 characters of text into it only seems to hold 30, 003
I have a wxTextCtrl: wx.TextCtrl(self.myPanel, -1, "", style=wx.TE_MULTILINE) I take a set of text (65,000 characters), and paste it into the text control. all looks well. Then when I click a button I print out the entered text and the length of that text. Here is what I am seeing... 1. Paste in text (65,000 characters) 2. Click button 3. Output on screen shows that the message length (i.e. len(msg)) is 30003 (strange since it should be 65000) 4. Select all text in the text control and hit delete. The text control should now be empty. 5. Paste in text (65,000 characters) 6. Click Button 7. Output on screen shows that the message length (i.e. len(msg)) is 65000 (as expected). Any idea why the first time it gives me 30003, but on subsequent attempts I get 65000? Thanks -- http://mail.python.org/mailman/listinfo/python-list
Multiline code - trailing slash usage
When do I need to use a trailing slash to separate code over multiple
lines.
For example:
x = "hello world, this is my multiline " + \
"string"
x = {'name' : \
'bob'}
Do I need to use the "\" in the above examples? When do i need to use
it?
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Load three different modules which have the same name
I have the following directory structure setup... c:\alpha\Person.py -- class Person(IPerson): def __init__(self): print "Alpha person here" c:\beta\Person.py -- class Person(IPerson): def __init__(self): print "Beta person here" c:\gamma\Person.py -- class Person(IPerson): def __init__(self): print "Gamma person here" c:\ok\playground.py --- def tryAllThree(): a = "c:\\alpha" b = "c:\\beta" g = "c:\\gamma" sys.path.append(a) from Person import Person alpha = Person() sys.path.remove(a) sys.path.append(b) from Person import Person beta = Person() sys.path.remove(b) sys.path.append(g) from Person import Person gamma = Person() Notice that my three different projects (alpha, beta, gamma) have a Person.py which contains a Person class. When I execute the following (on windows): c:\ok> python >>> from playground import * >>> tryAllThree() I see... Alpha person here Alpha person here Alpha person here What I want to see is Alpha person here Beta person here Gamma person here how can I get this to work? Thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: Load three different modules which have the same name
nevermind this took care of it: import sys def tryAllThree(): a = "c:\\alpha" b = "c:\\beta" g = "c:\\gamma" sys.path.append(a) import Person alpha = Person.Person() sys.path.remove(a) sys.path.append(b) reload(Person) beta = Person.Person() sys.path.remove(b) sys.path.append(g) reload(Person) gamma = Person.Person() thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: Load three different modules which have the same name
> Blerch! Why not just call the modules by the right names in the first > place? Then each will have its own sys.modules entry for a start ... > > regards > Steve what do i need to do? also, is there a way I can load each one as I have but each one have its own unique entry in sys.modules? For example i could load Person from Person (in alpha) as, "Person_Alpha" or something like that in sys.modules? not sure how I might do that. Thanks! -- http://mail.python.org/mailman/listinfo/python-list
Re: Load three different modules which have the same name
thanks for the help. -- http://mail.python.org/mailman/listinfo/python-list
help - Module needs access to another module
I have the following directory/file structure... c:\foo\utils.py c:\foo\bar\ok.py In ok.py I want to do something like... import utils utils.helpMeDoSomething() However, it seems that ok.py doesn't "know" about utils. Other than manually configuring sys.path what can I do? thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: help - Module needs access to another module
On Mar 20, 9:58 am, "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote: > After a bunch of questions of that kind, I suggest you take a step back, and > read this: > > http://docs.python.org/tut/node8.html got it, thanks. -- http://mail.python.org/mailman/listinfo/python-list
Make variable global
I have a file, "a.py" blah = None def go(): global blah blah = 5 >From the python interpreter I try >>> from a import * >>> blah >>> go() >>> blah >>> ...i was hoping to see "5" get printed out the second time I displayed blah, but it doesn't. Now, if I type this same code directly into the python interpreter it works as i was hoping. what i am missing? thanks -- http://mail.python.org/mailman/listinfo/python-list
Question about extending tuple
I wanted to extend tuple but ran into a problem. Here is what I thought would work class MyTuple(tuple): def __init__(self, *args): tuple.__init__(self, args) x = MyTuple(1,2,3,4) That gives me... TypeError: tuple() takes at most 1 argument (4 given). However, this call works: x = MyTuple((1,2,3,4)) I am perplexed only because "args" is a tuple by the definition of *args. Anyone? -- http://mail.python.org/mailman/listinfo/python-list
Re: Question about extending tuple
> As an immutable type, tuple makes use of __new__. > > class MyTuple(tuple): > def __new__(cls, *args): > return tuple.__new__(cls, args) > > should work. > > Georg strange. not very consistent. -- http://mail.python.org/mailman/listinfo/python-list
Re: Question about extending tuple
> > I hope you see now why it is consistent. > > Georg yea that clears it up. thanks. -- http://mail.python.org/mailman/listinfo/python-list
Retrieve an item from a dictionary using an arbitrary object as the key
Hi,
I have a class such as,
class Type:
def __init__(self, val):
self.val = val
class Person:
def __init__(self, name, age):
self.name = name
self.age = age
So I have a dictionary which maps an instance of Type to an instance
of Person. Now I need to retrieve a particular Person given a Type
object. What method in Type do I need to implement to allow it to be
retrieved?
For example (this is just an example):
t = Type(19)
p = Person("bob", 99)
x = {t : p}
def getPerson(val):
return x[Type(val)]
getPerson(19) should return me the Person with name "bob" and age
99. I am thinking there is some method that is used by the dictionary
to know if the key exists, just not sure which.
thanks
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Re: Retrieve an item from a dictionary using an arbitrary object as the key
> You'll need __eq__ for testing if two objects are equivalent, and > __hash__ for calculating object's hash value. > > class Type: > def __init__(self, val): > self.val = val > > def __eq__(self, other): > return self.val == other.val > > def __hash__(self): > return hash(self.val) that's exactly what I needed, thanks. -- http://mail.python.org/mailman/listinfo/python-list
wrap_EncryptByteArray argument 1 must be string without null bytes, not str
Has anyone seen this error before: wrap_EncryptByteArray() argument 1 must be string without null bytes, not str I am having a hard time finding anything about it. -- http://mail.python.org/mailman/listinfo/python-list
regular expression for parsing an html element
I have some HTML such as blah blah blah I wnat to pull out the text that lies inside the quotes of the src attribute. So in this example I would get image/blah/a.jpg My regex so far is: src=\"(.*)\" however the group in this case would end up being, image/blah/a.jpg" id="d">blah blah blah. how can I tell the regex group (.*) to end when it gets to the first " ? thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: regular expression for parsing an html element
thanks, forgot that. -- http://mail.python.org/mailman/listinfo/python-list
More Efficient fnmatch.fnmatch for multiple patterns?
I am using fnmatch.fnmatch to find some files. The only problem I have is that it only takes one pattern...so if I want to search using multiple patterns I have to do something like patterns = ['abc*.txt', 'foo*'] for p in patterns: if fnmatch.fnmatch(some_file_name, p): return True ...is there a built-in function that will match using multiple patterns? -- http://mail.python.org/mailman/listinfo/python-list
Determine an object is a subclass of another
How can tell if an object is a subclass of something else? Imagine... class Thing: pass class Animal: pass class Dog: pass d = Dog() I want to find out that 'd' is a Dog, Animal and Thing. Such as... d is a Dog d is a Animal d is a Thing Thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: Determine an object is a subclass of another
yea i meant to have animal extend thing and dog extend animalmy mistake. anyways, is there a way to check without having an instance of the class? such as, isinstance(Dog, (Animal, Thing)) ?? thanks -- http://mail.python.org/mailman/listinfo/python-list
regex for replacing \r\n
I am trying to get a regex that will match \r\n in a string.
ultimately i am trying to replace all \r\n with somethign else, say
BLAH.
For example:
This is a message
on a new line
would become:
This is a messageBLAHon a new line.
any ideas? i tried
re.compile('\r\n').match("This is a message" + os.linesep + "on a new
line") but no match. And I am on windows, so os.linesep gives
'\r\n'
thanks
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format a number for output
if i have a number, say the size of a file, is there an easy way to output it so that it includes commas? for example: 1890284 would be: 1,890,284 I am looking for something builtin to python, not a third party lib. thanks -- http://mail.python.org/mailman/listinfo/python-list
block a network port
any ideas on how to block a network port from being used, or one that is currently in use? For example, say I want to block port 23 from being used. by used, I mean allowing connections to or from it. thanks in advance. -- http://mail.python.org/mailman/listinfo/python-list
Re: block a network port
Larry Bates wrote: > This is not really a Python question. Blocking ports is a function > of your firewall solution. > ok, no of any python solutions? or command-line firewalls? -- http://mail.python.org/mailman/listinfo/python-list
wxTimer problem
I have a python script which creates a wx.App, which creates a wx.Frame (which has a wx.Timer). looks sorta like this: class MyProgram: def __init__(self): self.app = MyApp(0) self.app.MainLoop() class MyApp(wx.App): def OnInit(self): self.myframe= MyFrame() self.myframe.Show(True) self.SetTopWindow(self.myframe) return True class MyFrame(wx.Frame): def __init__(self): # do some other stuff here # setup the timer self.timer = wx.Timer(self) self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer) self.timer.Start(100) def killTimer(self): self.Unbind(wx.EVT_TIMER) self.timer.Stop() self.timer = None that's the jist of it. Anyhow, so I startup python and import my script, which loads up the wx.App, frame and all. foo = MyProgram() Then I close the frame. when the frame is closed it calls killTimer. This method gets called and no exceptions occur. Then...I create a new instance of the app and try to load the frame again. foo = MyProgram() ...and I am getting this error: "timer can only be started from the main thread" how can I fix this?? FYI, my script is being started by a new thread each time, so ultimately we have def startProgram(): foo = MyProgram() threading.Thread(target=startProgram).start() Thanks in advance. -- http://mail.python.org/mailman/listinfo/python-list
Re: wxTimer problem
> Fix: Start the script from the main thread only. > > Regards, > > > Björn thanks for NO help.anyways, I got rid of the Timer b/c all i was using it for was to check the state of the "shift" key.but I am now binding to key up/down. thanks anyway -- http://mail.python.org/mailman/listinfo/python-list
Search Queue
I have a class such as...
id = 0
class Foo:
def __init__(self, data):
self.id = id
id += 1
self.data = data
And I am storing them in a Queue.Queue...
import Queue
q = Queue.Queue()
q.put(Foo('blah'))
q.put(Foo('hello world'))
q.put(Foo('test'))
how can I search "q" for an instance of Foo which has 'id' equal to say
2? Typically a queue only lets you put and get, not really search.
Thanks.
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Re: Search Queue
Yea basically I need Queue like functionality with the ability to search for a particular instance in it. I guess I could just use a list and search it as needed. Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Thoughts on using isinstance
In my code I am debating whether or not to validate the types of data being passed to my functions. For example def sayHello(self, name): if not name: rasie "name can't be null" if not isinstance(name, str): raise "name must be a string" print "Hello " + name Is the use of isinstance a "bad" way of doing things? is it a "heavy" operation? for example, if I use this in each function validate input will it slow things down a lot? just curious how you might handle this type of situation (other than not validating at all). thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: Thoughts on using isinstance
> The "Python way" is to validate by performing the operations you need to > perform and catching any exceptions that result. In the case of your > example, you seem to be saying that you'd rather raise your own > exception (which, by the way, should really be a subclass of Exception, > but we will overlook that) that relying on the interpreter to raise a > ValueError or a TypeError. Is there really any advantage to this? You > increase your code size and add *something* to execution time with > little real purpose. > > People coming to Python after C++ or some similar language that allows > or requires parameter type declarations often don't feel comfortable > taking this direction to start with, but it works well for most of us. > > regards > Steve So instead of validating input I should just try and use the input as if it was correct, and let python throw the errors? -- http://mail.python.org/mailman/listinfo/python-list
Re: Thoughts on using isinstance
Well my example function was simply taking a string and printing, but most of my cases would be expecting a list, dictionary or some other custom object. Still propose not to validate the type of data being passed in? Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Thoughts on using isinstance
Well my example function was simply taking a string and printing, but most of my cases would be expecting a list, dictionary or some other custom object. Still propose not to validate the type of data being passed in? Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Thoughts on using isinstance
>Yes because usually you don't expect a list or dictionary but some object > that *acts* like a list or dictionary. Or you even expect just some > aspects of the type's behavior. For example that it is something you can > iterate over. > > Ciao, > Marc 'BlackJack' Rintsch good point. is there place that documents what methods/attrs I should check for on an object? for example, if its a list that I expect I should verify the object that is passed in has a ??? function? etc. thanks. -- http://mail.python.org/mailman/listinfo/python-list
marshal.loads ValueError
I have the following code which is sent over the wire as a string... from time import time class Foo: def go(self): print "Time:", time() I get this code and store it as, "data" data = receivePythonSource() Then I try... exec marshal.loads(data) in my_module.__dict__ However I get an error saying: ValueError: invalid literal for __float__: om time import time class Foo: def go(self): almost like when I try to marshal and exec it misses the first two characters, "fr" ...any ideas? -- http://mail.python.org/mailman/listinfo/python-list
Re: marshal.loads ValueError
On Jan 31, 8:02 am, Benjamin Niemann <[EMAIL PROTECTED]> wrote: > marshal is used to (de)serialize python objects from/to strings. > marshal.loads() tries to deserialize an encoded string back into a python > object - which does not make sense here. > What you probably want is: > > exec data in my_module.__dict__ thanks that took care of it. -- http://mail.python.org/mailman/listinfo/python-list
pyHook or SetWindowsHookEx
I am having trouble with pyHook on python 2.4.1. Basically I have a python app that uses pyHook to capture keyboard events and write them straight to a file. The application is running as a service on a windows machine. If I am at that windows machine the application works just fine, logging my keystrokes. However, if I use Remote Desktop to connect to the machine and open up say Notepad it doesn't capture the keystrokes. Is this a problem with pyHook? or is it he way Windows handles the events? Is there a way to setup my own hook without pyHook using just python? i think the function I am interested in is SetWindowsHookEx. Thanks in advance. -- http://mail.python.org/mailman/listinfo/python-list
Re: book for a starter
I'd pick, Dive Into Python (http://www.diveintopython.org/) you can read it online for FREE! -- http://mail.python.org/mailman/listinfo/python-list
Re: pyHook or SetWindowsHookEx
anyone? -- http://mail.python.org/mailman/listinfo/python-list
Capture key strokes
Is there a way to capture key strokes on a system using python (other than pyHook)? can wxPython capture keystrokes for the system (not just, say a text box)? thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: pyHook or SetWindowsHookEx
:( -- http://mail.python.org/mailman/listinfo/python-list
Are Lists thread safe?
Are lists thread safe? Or do I have to use a Lock when modifying the list (adding, removing, etc)? Can you point me to some documentation on this? thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: Are Lists thread safe?
Thanks for the link. I saw that one in my google search but didn't visit it for some reason. Looks like most operations should be just fine. Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Are Lists thread safe?
I guess this might be overkill then... class MyList(list): def __init__(self): self.l = threading.Lock() def append(self, val): try: self.l.acquire() list.append(self, val) finally: if self.l.locked(): self.l.release() performing the same locking/unlocking for the other methods (i.e. remove, extend, etc). -- http://mail.python.org/mailman/listinfo/python-list
Re: Are Lists thread safe?
On Mar 9, 2:50 pm, "abcd" <[EMAIL PROTECTED]> wrote: > I guess this might be overkill then... > > class MyList(list): > def __init__(self): > self.l = threading.Lock() > > def append(self, val): > try: > self.l.acquire() > list.append(self, val) > finally: > if self.l.locked(): > self.l.release() > > performing the same locking/unlocking for the other methods (i.e. > remove, extend, etc). comments? -- http://mail.python.org/mailman/listinfo/python-list
Re: How to Start a (thread?) and Leave
probably a Thread. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to Start a (thread?) and Leave
> But a thread leaves the script running until the thread exits, right? > So the webpage would just keep saying "loading" at the bottom I think. > > -Greg give it a shot. if you spawn off a new thread your code should keep executing while the thread does its work in the "background". -- http://mail.python.org/mailman/listinfo/python-list
unknown host
I have a linux machine (ip = 10.10.10.8), which can ping other machines on the same subnet...such as 10.10.10.1 10.10.10.2 10.10.10.5 10.10.10.6 10.10.10.254 If I use socket.gethostbyaddr() I get back results when ip is 10.10.10.1 and 10.10.10.254 but for the other IP addresses (10.10.10.5, .6, etc) I get back "unknown host". In fact I get "unknown host" for the linux machine that I run the gethostbyaddr from. If perform the same operation from a windows machine (ip = 10.10.10.5) it returns data for the other IP addresses as expected. any ideas? -- http://mail.python.org/mailman/listinfo/python-list
Network Ports - blocking / taking over
Just curious if anyone had any information, or links, regarding the blocking of network ports and/or taking over (hijacking) ports using Python. Any python modules/libs you could recommend? tutorials/reading materials? Thanks in advance. -- http://mail.python.org/mailman/listinfo/python-list
regular expression - matches
how can i determine if a given character sequence matches my regex, completely? in java for example I can do, Pattern.compile(regex).matcher(input).matches() this returns True/False whether or not input matches the regex completely. is there a matches in python? -- http://mail.python.org/mailman/listinfo/python-list
Re: regular expression - matches
yea i saw thatguess I was trusting that my regex was accurate :) ...b/c i was getting a Matcher when I shouldnt have, but i found that it must be the regex. -- http://mail.python.org/mailman/listinfo/python-list
problem with regex
I have a regex: '[A-Za-z]:\\([^/:\*\?"<>\|])*'
when I do, re.compile('[A-Za-z]:\\([^/:\*\?"<>\|])*') ...I get
sre_constants.error: unbalanced parenthesis
do i need to escape something else? i see that i have matching
parenthesis.
thx
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