Re: python to sharepoint ?
You might want to check out IronPython: http://www.codeplex.com/Wiki/View.aspx?ProjectName=IronPython It's a port of the .NET FW for Python, which probably exposes the API you'll need. -David curtin wrote: anyone have code that allows me to post files direct to sharepoint from python? any pointers, FAQ, etc, appreciated! thanks, craig -- http://mail.python.org/mailman/listinfo/python-list
Re: Programming Language that is Spreadsheet/Table Based
James Stroud [EMAIL PROTECTED] wrote:
Gerard Flanagan wrote:
8--
Thank you, this is very good stuff to think about.
James
I can't really add to the above train of thought...
And I don't know if this will help - but if you want to think, here is a skewed,
simple view:
If I were to try and do something like this, I would start by defining a spread
sheet like dict to keep everything in, using (column,row) tuples as keys, and
build on top of that.
This would give you the ability to keep *anything* in a cell, and the database
like structures you are thinking of would live on top of this underlying access
structure, with the (column,row) being a direct *pointer* to an element in one
fast step.
I would then also use other dicts to describe what is kept in the columns -
something simple like:
header_dict = {0:['name of person','Name','Enter your name'],1:['age of person
since birth','Age','Enter your birthday'], ... }
where the first item in the list is a help string, the second a column header
for printing, the third the string to use as prompt for a GUI, etc... - you
could even keep and enforce type if you wanted to - must be int, must be date,
column width for printing, validation data and rules, - whatever.
In a sense this is a sort of inverted way of looking at a file - instead of
having an underlying dict with (column, row) keys, you could alternatively have
loose column dicts only to keep the data in ( note that I have been writing
(column, row) consistently, instead of the more conventional (row,column).) -
this would make adding or deleting columns almost trivial.
You *could* also have references to Python functions or class methods living
alongside the data in the cells, and then things can get hairy - for an age
entry, for instance, the cell can look like:
Data[(column,row)] = # (or Age[row] in the alternative
approach)
[(1947,01,24),self.BirthdayChecker,self.PresentChooser,self.LetterWriter, ...]
where the first entry, the tuple, represents the data (could have been a list
or dict, of course ) and the rest are methods or functions to use, in this
particular instance. You could instead have these function references in the
age column's header dict entry, for those of them that have applicability across
all rows of the column, just like the idea of type enforcement or validation
above.
For a kind of row, or row type, you need then simply keep a list of column
numbers that are required for this record, with a different list defining a
different record type - Gold members need these column entries filled in, while
Silver members need only those... simple, but then you need a record type
column...
This sort of thing organises the stuff, but the code to use it becomes a bit
impenetrable, as you have to write a kind of crawling process to access the
structure to do what is required, but it is all table driven and can be very
flexible. Its not a weekend project though, and when you are finished its a
kind of super relational database...
HTH
- Hendrik
--
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Re: Exploiting Dual Core's with Py_NewInterpreter's separated GIL ?
Martin v. Löwis [EMAIL PROTECTED] writes: I think that has to be on a single processor, or at most a dual core processor with shared cache on die. With multiple cpu chips I don't think can get the signals around that fast. Can you explain what you mean? The lock# signal takes *immediate* effect, within the CPU cycle in which it is asserted. There is no delay whatsoever (except for speed-of-light issues, of course). I dunno about x86 hardware signals but these instructions do read-modify-write operaitons. That means there has to be enough interlocking to prevent two cpu's from updating the same memory location simultaneously, which means the CPU's have to communicate. See http://en.wikipedia.org/wiki/MESI_protocol (I think this is how the current x86's do it): A cache that holds a line in the Modified state must snoop (intercept) all attempted reads (from all of the other CPUs in the system) of the corresponding main memory location and insert the data that it holds. This is typically done by forcing the read to back off (i.e. to abort the memory bus transaction), then writing the data to main memory and changing the cache line to the Shared state. A cache that holds a line in the Shared state must also snoop all invalidate broadcasts from other CPUs, and discard the line (by moving it into Invalid state) on a match. It is quite difficult to get signals off of a chip at GHz speeds, and so this signalling is much slower than the CPU cycle. -- http://mail.python.org/mailman/listinfo/python-list
Re: NEWBIE: Script help needed
If the other commands work but 3) doesn't, it means there is something different (wrong?) with the command. So try running 3) , then one of the other ones and see the difference. The getCommandOutput() , I suspect, just waits for the data from the actual command and the command is not returning anything. It could be because it just takes way too long (I am not familiar with Gentoo, so not sure if emerge world takes 1 second or 24 hours...) or perhaps the emerge -uvp world stops at some point and is waiting for input (a command prompt like are you sure you want to do this [Y/n]? For more in depth on subprocesses in Python take a look at the subprocess module: http://docs.python.org/lib/module-subprocess.html Hope this helps, Nick V. Lorenzo wrote: I have this script that I want to use weekly to send me email with information regarding disk space and available upgrades for my system. This script is actually a learning tool for me as I learn Python. The problem I've run into has me stumped and I need some help. What happens is when the script runs it does these things, parses the result and appends that to an html string: 1) checks disk space by using df -t reiserfs 2) runs time emerge --sync 3) runs emerge -uvp world 4) runs emerge -uv --fetchonly world The 'emerge' command is a Gentoo specific one. If I remove step 3), everything else runs just fine, the email is sent and I receive what I expect. But when step 3) is allowed to run, even if its the only command that runs, it hangs somewhere in the function getCommandOutput. If I try and debug the command, it appears to hang on this line: err = child.wait() I suspect a race condition, but I'm not sure how to proceed, can someone lend me a hand. Here is the script I wrote, I got the command getCommandOutput from this site: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52296 TIA [code] #!/usr/bin/python ### NEED TO RUN THIS AS ROOT ### ### EMERGE SYNC REQUIRES THIS ### import os, re, smtplib, MimeWriter, mimetools, cStringIO, popen2, fcntl, select, pdb cmd = 'df -t reiserfs' finalList = [] theOutput = [] text = This realy should be in HTML html = html\ head\ meta http-equiv=\Content-Type\ content=\text/html; charset=iso-8859-1\\ /head\ BODYBRfont color='green'emDisk Utilization on Hedley:/em/fontBR out = cStringIO.StringIO() writer = MimeWriter.MimeWriter(out) txtin = cStringIO.StringIO(text) def createhtmlmail (html, text, subject): Create a mime-message that will render HTML in popular MUAs, text in better ones import MimeWriter import mimetools import cStringIO out = cStringIO.StringIO() # output buffer for our message htmlin = cStringIO.StringIO(html) txtin = cStringIO.StringIO(text) writer = MimeWriter.MimeWriter(out) # # set up some basic headers... we put subject here # because smtplib.sendmail expects it to be in the # message body # writer.addheader(Subject, subject) writer.addheader(MIME-Version, 1.0) writer.addheader(From, [EMAIL PROTECTED]) writer.addheader(To, [EMAIL PROTECTED]) # # start the multipart section of the message # multipart/alternative seems to work better # on some MUAs than multipart/mixed # writer.startmultipartbody(alternative) writer.flushheaders() # # the plain text section # subpart = writer.nextpart() subpart.addheader(Content-Transfer-Encoding, quoted-printable) pout = subpart.startbody(text/plain, [(charset, 'us-ascii')]) mimetools.encode(txtin, pout, 'quoted-printable') txtin.close() # # start the html subpart of the message # subpart = writer.nextpart() subpart.addheader(Content-Transfer-Encoding, quoted-printable) # # returns us a file-ish object we can write to # pout = subpart.startbody(text/html, [(charset, 'us-ascii')]) mimetools.encode(htmlin, pout, 'quoted-printable') htmlin.close() # # Now that we're done, close our writer and # return the message body # writer.lastpart() msg = out.getvalue() out.close() print msg return msg def makeNonBlocking(fd): fl = fcntl.fcntl(fd, fcntl.F_GETFL) try: fcntl.fcntl(fd, fcntl.F_SETFL, fl | os.O_NDELAY) except AttributeError: fcntl.fcntl(fd, fcntl.F_SETFL, fl | fcntl.FNDELAY) def getCommandOutput(command): theOutput = [] child = popen2.Popen3(command, 1) # capture stdout and stderr from command child.tochild.close() # don't need to talk to child outfile = child.fromchild outfd = outfile.fileno() errfile = child.childerr errfd = errfile.fileno() makeNonBlocking(outfd)# don't deadlock! makeNonBlocking(errfd) outdata = errdata = '' outeof = erreof = 0 while 1: ready = select.select([outfd,errfd],[],[]) #
Re: WSDL?
In [EMAIL PROTECTED], [EMAIL PROTECTED] wrote: CORBA may work fine in an intranet environment, where you can control the server and the client, but it clearly failed to be a popular choice on the internet: have you seen any company offering webservices with a CORBA interface?? The OP wanted something for in-house communication between programs. You are right that CORBA is not a popular choice for offering webservices for the masses but there used to be companies that offered CORBA interfaces in the business to business arena when the word webservice was yet to be invented. A huge part of the SOAP popularity comes from marketing and shoving down the buzzwords webservices and XML down everyone's throat and has nothing to do with technical advantages or disadvantages. Well, IMHO at least. Ciao, Marc 'BlackJack' Rintsch -- http://mail.python.org/mailman/listinfo/python-list
tips requested for a log-processing script
Python ers, As a relatively new user of Python I would like to ask your advice on the following script I want to create. I have a logfile which contains records. All records have the same layout, and are stored in a CSV-format. Each record is (non-uniquely) identified by a date and a itemID. Each itemID can occur 0 or more times per month. The item contains a figure/amount which I need to sum per month and per itemID. I have already managed to separate the individual parts of each logfile-record by using the csv-module from Python 2.5. very simple indeed. Apart from this I have a configuration file, which contains the list of itemID's i need to focus on per month. Not all itemID's are relevant for each month, but for example only every second or third month. All records in the logfile with other itemID's can be ignored. I have yet to define the format of this configuration file, but am thinking about a 0 or 1 for each month, and then the itemID, like: 1 0 0 1 0 0 1 0 0 1 0 0 123456 for a itemID 123456 which only needs consideration at first month of each quarter. My question to this forum is: which data structure would you propose? The logfile is not very big (about 200k max, average 200k) so I assume I can store in internal memory/list? How would you propose I tackle the filtering of relevant/non-relevant items from logfile? Would you propose I use a filter(func, list) for this task or is another thing better? In the end I want to mail the outcome of my process, but this seems straitforward from the documentation I have found, although I must connect to an external SMTP-server. Any tips, views, advice is highly appreciated! Jaap PS: when I load the logfile in a spreadsheet I can create a pivot table which does about the same ;-] but that is not what I want; the processing must be automated in the end with a periodic script which e-mails the summary of the keyfigure every month. -- http://mail.python.org/mailman/listinfo/python-list
Re: Exploiting Dual Core's with Py_NewInterpreter's separated GIL ?
Paul Rubin wrote: I dunno about x86 hardware signals but these instructions do read-modify-write operaitons. That means there has to be enough interlocking to prevent two cpu's from updating the same memory location simultaneously, which means the CPU's have to communicate. See http://en.wikipedia.org/wiki/MESI_protocol (I think this is how the current x86's do it): The MESI protocol is used to ensure all read and write operations are cache coherent, not just locked read-modify-write operations. Whether the LOCK prefix is used or not in an instruction normally isn't externally visable. From IA-32 Intel® Architecture Software Developer's Manual Volume 3A: System Programming Guide, Part 1: For the Pentium 4, Intel Xeon, and P6 family processors, if the area of memory being locked during a LOCK operation is cached in the processor that is performing the LOCK operation as write-back memory and is completely contained in a cache line, the processor may not assert the LOCK# signal on the bus. Instead, it will modify the memory location internally and allow it's cache coherency mechanism to insure that the operation is carried out atomically. This operation is called cache locking. The cache coherency mechanism automatically prevents two or more processors that have cached the same area of memory from simultaneously modifying data in that area. The cost of mantaining cache coherency for a locked increment instruction should be no different than that of an unlocked increment instruction. Ross Ridge -- http://mail.python.org/mailman/listinfo/python-list
Re: Exploiting Dual Core's with Py_NewInterpreter's separated GIL ?
Paul Rubin schrieb: I dunno about x86 hardware signals but these instructions do read-modify-write operaitons. That means there has to be enough interlocking to prevent two cpu's from updating the same memory location simultaneously, which means the CPU's have to communicate. See http://en.wikipedia.org/wiki/MESI_protocol (I think this is how the current x86's do it): Ah, but in the case where the lock# signal is used, it's known that the data is not in the cache of the CPU performing the lock operation; I believe it is also known that the data is not in the cache of any other CPU. So the CPU performing the LOCK INC sequence just has to perform two memory cycles. No cache coherency protocol runs in that case. But even when caching is involved, I don't see why there should be more than three memory cycles. The MESI protocol really consists only of two pins: HIT# and HITM#; the actual implementation is just in keeping the state for each cache line, and in snooping. There CPU's don't really communicate. Instead, if one processor tries to fill a cache line, the others snoop the read, and assert either HIT# (when they have not modified their cache lines) or HITM# (when they do have modified their cache lines). Assertions of these signals is also immediate. The worst case would be that one processor performs a LOCK INC, and another processor has the modified value in its cache line. So it needs to first flush the cache line, before the other processor can modify the memory. If the memory is not cached yet in another processor, the MESI protocol does not involve additional penalties. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: small python cgi webserver
Fabian Braennstroem wrote: [...] In your response (cgi-script) you have to divide the header from the content '\r\n\r\n'. I am not sure, what that means!? ... but it works :-) We are talking about HTTP, take a look at the HTTP response in version 1.1: http://www.w3.org/Protocols/rfc2616/rfc2616-sec6.html#sec6 As you may see you separate the header of a response from the body by an empty line, generated with CRLF. Since one CRLF ends the line inside the header you need two of them. Bye Norbert -- http://mail.python.org/mailman/listinfo/python-list
Re: Pyro stability
writeson wrote: [some questions about Pyro] I've replied to this on Pyro's mailing list. -Irmen -- http://mail.python.org/mailman/listinfo/python-list
Re: ANN: SE 2.3. Available now
nah, if you've spent more than five minutes on c.l.python lately, you'd noticed that it's the Solution to Everything (up there with pyparsing, I think). SE would be the Solution to Everything. pyparsing Provides Your Perfect Alternative where Regexp Syntax Is No Good. The re module is just Routinely Expected to solve all problems. :) -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: python GUIs comparison (want)
Mudcat wrote: When you say far better widgets, do you mean that it has a greater number of widgets to choose from, or that the types of widgets are basically the same but have a greater amount of flexibility in them? by better i mean more of them to choose from and the functionality they provide. when i started working with wx i discovered widgets i hadn't even seen before. and if you can't find a widget to suit, it's easy to make one. -- http://mail.python.org/mailman/listinfo/python-list
string to list of numbers conversion
Hi, I have a string '((1,2), (3,4))' and I want to convert this into a python tuple of numbers. But I do not want to use eval() because I do not want to execute any code in that string and limit it to list of numbers. Is there any alternative way? Thanks. Suresh -- http://mail.python.org/mailman/listinfo/python-list
Is there a commas-in-between idiom?
Hi experts, it's very common that I have a list and I want to print it with commas in between. How do I do this in an easy manner, whithout having the annoying comma in the end? code list = [1,2,3,4,5,6] # the easy way for element in list: print element, ',', print # this is what I really want. is there some way better? if (len(list) 0): print list[0], for element in list[1:]: print ',', element, /code Thx, Ernesto -- http://mail.python.org/mailman/listinfo/python-list
Re: tips requested for a log-processing script
if you are running in windows you can use the win32com module to automate the process of generating a pivot table in excel and then code to send it via e-mail Jaap wrote: Python ers, As a relatively new user of Python I would like to ask your advice on the following script I want to create. I have a logfile which contains records. All records have the same layout, and are stored in a CSV-format. Each record is (non-uniquely) identified by a date and a itemID. Each itemID can occur 0 or more times per month. The item contains a figure/amount which I need to sum per month and per itemID. I have already managed to separate the individual parts of each logfile-record by using the csv-module from Python 2.5. very simple indeed. Apart from this I have a configuration file, which contains the list of itemID's i need to focus on per month. Not all itemID's are relevant for each month, but for example only every second or third month. All records in the logfile with other itemID's can be ignored. I have yet to define the format of this configuration file, but am thinking about a 0 or 1 for each month, and then the itemID, like: 1 0 0 1 0 0 1 0 0 1 0 0 123456 for a itemID 123456 which only needs consideration at first month of each quarter. My question to this forum is: which data structure would you propose? The logfile is not very big (about 200k max, average 200k) so I assume I can store in internal memory/list? How would you propose I tackle the filtering of relevant/non-relevant items from logfile? Would you propose I use a filter(func, list) for this task or is another thing better? In the end I want to mail the outcome of my process, but this seems straitforward from the documentation I have found, although I must connect to an external SMTP-server. Any tips, views, advice is highly appreciated! Jaap PS: when I load the logfile in a spreadsheet I can create a pivot table which does about the same ;-] but that is not what I want; the processing must be automated in the end with a periodic script which e-mails the summary of the keyfigure every month. -- http://mail.python.org/mailman/listinfo/python-list
finding the list of the matched strings
Hi, I have a list of strings. And I want to find the subset which
matches a particular regular expression.
import re
ll = ('a', 'b', 's1', 's2', '3s')
p = re.compile('^s.*')
newList = filter(lambda s: p.match(s), ll)
I suppose there should be simple function to do this in re module. Is
there any?
I searched google, but could not find one, may be for keywords were not
perfect.
Thanks.
Suresh
--
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Re: string to list of numbers conversion
[EMAIL PROTECTED] wrote:
Hi,
I have a string '((1,2), (3,4))' and I want to convert this into a
python tuple of numbers. But I do not want to use eval() because I do
not want to execute any code in that string and limit it to list of
numbers.
Is there any alternative way?
Python 2.5 (r25:51908, Sep 19 2006, 09:52:17) [MSC v.1310 32 bit
(Intel)] on win
32
Type help, copyright, credits or license for more information.
s = '((1,2), (3,4))'
s = filter(lambda char: char not in ')(', s)
s
'1,2, 3,4'
s = s.split(',')
s
['1', '2', ' 3', '4']
s = map(float, s)
s
[1.0, 2.0, 3.0, 4.0]
t1 = s[::2]
t1
[1.0, 3.0]
t2 = s[1::2]
t2
[2.0, 4.0]
zip(t1, t2)
[(1.0, 2.0), (3.0, 4.0)]
Gerard
--
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Re: string to list of numbers conversion
[EMAIL PROTECTED] wrote: I have a string '((1,2), (3,4))' and I want to convert this into a python tuple of numbers. But I do not want to use eval() because I do not want to execute any code in that string and limit it to list of numbers. Is there any alternative way? http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/364469 Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: Is there a commas-in-between idiom?
Ernesto García García [EMAIL PROTECTED] writes: Hi experts, it's very common that I have a list and I want to print it with commas in between. How do I do this in an easy manner, whithout having the annoying comma in the end? list = [1,2,3,4,5,6] print ','.join(map(str, list)) 1,2,3,4,5,6 -- Christian Joergensen | Linux, programming or web consultancy http://www.razor.dk | Visit us at: http://www.gmta.info -- http://mail.python.org/mailman/listinfo/python-list
Re: Is there a commas-in-between idiom?
Ernesto García García wrote: it's very common that I have a list and I want to print it with commas in between. How do I do this in an easy manner, whithout having the annoying comma in the end? items = [1, 2, 3, many] print , .join(str(item) for item in items) 1, 2, 3, many Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: finding the list of the matched strings
[EMAIL PROTECTED] [EMAIL PROTECTED] writes:
Hi, I have a list of strings. And I want to find the subset which
matches a particular regular expression.
import re
ll = ('a', 'b', 's1', 's2', '3s')
p = re.compile('^s.*')
newList = filter(lambda s: p.match(s), ll)
I suppose there should be simple function to do this in re module. Is
there any?
I searched google, but could not find one, may be for keywords were not
perfect.
I dont believe there exists such a function. I would have written
it using a list comprehension.
import re
ll = ('a', 'b', 's1', 's2', '3s')
p = re.compile('^s.*')
newList = [s for s in ll if p.match(s)]
newList
['s1', 's2']
--
Christian Joergensen | Linux, programming or web consultancy
http://www.razor.dk | Visit us at: http://www.gmta.info
--
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Re: finding the list of the matched strings
[EMAIL PROTECTED] wrote:
Hi, I have a list of strings. And I want to find the subset which
matches a particular regular expression.
import re
ll = ('a', 'b', 's1', 's2', '3s')
p = re.compile('^s.*')
newList = filter(lambda s: p.match(s), ll)
I suppose there should be simple function to do this in re module. Is
there any?
I searched google, but could not find one, may be for keywords were not
perfect.
Thanks.
Suresh
I think I'm having some network problems. I'll try again. Also the
previous attempt had a typo (perhaps a freudian slip).
,.join(some_list).
By the way, don't name your own objects with the names of built-in
types, such as list or str, etc.
--
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Re: Is there a commas-in-between idiom?
Ernesto García García wrote: Hi experts, it's very common that I have a list and I want to print it with commas in between. How do I do this in an easy manner, whithout having the annoying comma in the end? code list = [1,2,3,4,5,6] # the easy way for element in list: print element, ',', print # this is what I really want. is there some way better? if (len(list) 0): print list[0], for element in list[1:]: print ',', element, /code Thx, Ernesto print ,.joint(some_list) Where what you have named list is now called some_list because it is terribly ill-advised to reassign the name of a built-in type. James -- http://mail.python.org/mailman/listinfo/python-list
Re: finding the list of the matched strings
[EMAIL PROTECTED] wrote:
Hi, I have a list of strings. And I want to find the subset which
matches a particular regular expression.
import re
ll = ('a', 'b', 's1', 's2', '3s')
p = re.compile('^s.*')
newList = filter(lambda s: p.match(s), ll)
I suppose there should be simple function to do this in re module. Is
there any?
# s = ('a', 'b', 's1', 's2', 'c')
# import re
# regexp = re.compile('^s.*')
# filter( regexp.match, s)
#('s1', 's2')
#
Gerard
--
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Re: finding the list of the matched strings
[EMAIL PROTECTED] wrote:
Hi, I have a list of strings. And I want to find the subset which
matches a particular regular expression.
import re
ll = ('a', 'b', 's1', 's2', '3s')
p = re.compile('^s.*')
newList = filter(lambda s: p.match(s), ll)
or
newList = [s for s in ll if p.match(s)]
I suppose there should be simple function to do this in re module. Is
there any?
No.
Peter
--
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Re: Is there a commas-in-between idiom?
Ernesto García García wrote: Hi experts, it's very common that I have a list and I want to print it with commas in between. How do I do this in an easy manner, whithout having the annoying comma in the end? code list = [1,2,3,4,5,6] # the easy way for element in list: print element, ',', print # this is what I really want. is there some way better? if (len(list) 0): print list[0], for element in list[1:]: print ',', element, /code Thx, Ernesto mylist = [1,2,3,4,5,6] print ','.join(map(str, mylist)) Great solution! Thank all of you, Ernesto -- http://mail.python.org/mailman/listinfo/python-list
Re: Is there a commas-in-between idiom?
]Ernesto García García] it's very common that I have a list and I want to print it with commas in between. How do I do this in an easy manner, whithout having the annoying comma in the end? code list = [1,2,3,4,5,6] # the easy way for element in list: print element, ',', print # this is what I really want. is there some way better? if (len(list) 0): More idiomatic as if len(list) 0: and even more so as plain if list: print list[0], for element in list[1:]: print ',', element, Do you really want a space before and after each inter-element comma? /code An often-overlooked alternative to playing with ,.join() is: print str(list)[1:-1] That is, ask Python to change the list into a big string, and just strip the brackets off each end: alist = ['a, bc', 4, True] print str(alist)[1:-1] 'a, bc', 4, True Note the quotes around the string element! This differs from what your code snippet above would produce (in addition to differing wrt spaces around inter-element commas): a, bc , 4 , True -- http://mail.python.org/mailman/listinfo/python-list
ANN: SIP v4.5 Released
Riverbank Computing is pleased to announce the release of SIP v4.5 available from http://www.riverbankcomputing.co.uk/sip/. SIP is a tool for generating Python modules that wrap C or C++ libraries. It is similar to SWIG. It is used to generate PyQt and PyKDE. Full documentation is available at http://www.riverbankcomputing.com/Docs/sip4/sipref.html. SIP is licensed under the Python License and runs on Windows, UNIX, Linux and MacOS/X. SIP requires Python v2.3 or later. The main focus of this release is support for Python v2.5. Other features of SIP include: - extension modules are implemented as a single binary .pyd or .so file (no Python stubs) - support for Python new-style classes - generated modules are quick to import, even for large libraries - support for Qt's signal/slot mechanism - thread support - the ability to re-implement C++ abstract and virtual methods in Python - the ability to define Python classes that derive from abstract C++ classes - the ability to spread a class hierarchy across multiple Python modules - support for C++ namespaces - support for C++ exceptions - support for C++ operators - an extensible build system written in Python that supports over 50 platform/compiler combinations - the generation of API files for IDEs that support autocompletion and call tips. Phil -- http://mail.python.org/mailman/listinfo/python-list
Re: string to list of numbers conversion
Peter, Thanks.
This recipe fails when negative numbers are used.
safe_eval('(12, -12)')
*** Unsafe_Source_Error: Line 1. Unsupported source construct:
compiler.ast.UnarySub
But, I think it could be easily fixed for somebody who understands the
script. Can somebody help.
Thanks.
Suresh
Peter Otten wrote:
[EMAIL PROTECTED] wrote:
I have a string '((1,2), (3,4))' and I want to convert this into a
python tuple of numbers. But I do not want to use eval() because I do
not want to execute any code in that string and limit it to list of
numbers.
Is there any alternative way?
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/364469
Peter
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ANN: PyQt v4.1 Released
Riverbank Computing is pleased to announce the release of PyQt v4.1 available from http://www.riverbankcomputing.co.uk/pyqt/. The highlights of this release include: - support for Qt v4.2 including QGraphicsView and related classes, the undo framework, widget stylesheets, and integration with GNOME (both visually and the event loop) - the addition of the QtTest module for automated GUI testing - the addition of the QAxContainer module for Windows for integrating ActiveX controls. PyQt is a comprehensive set of Qt bindings for the Python programming language and supports the same platforms as Qt (Windows, Linux and MacOS/X). Like Qt, PyQt is available under the GPL and a commercial license. See http://www.riverbankcomputing.com/Docs/PyQt4/html/classes.html for the class documentation. PyQt v4 supports Qt v4 (http://www.trolltech.com/products/qt/index.html). PyQt v3 is still available to support earlier versions of Qt. PyQt v4 is implemented as a set of 10 extension modules containing approximately 400 classes and 6,000 functions and methods. QtCore The non-GUI infrastructure including event loops, threads, i18n, Unicode, signals and slots, user and application settings. QtGui A rich collection of GUI widgets. QtNetwork A set of classes to support TCP and UDP socket programming and higher level protocols (eg. HTTP). QtOpenGL A set of classes that allows PyOpenGL to render onto Qt widgets. QtSql A set of classes that implement SQL data models and interfaces to industry standard databases. Includes an implementation of SQLite. QtSvg A set of classes to render SVG files onto Qt widgets. QtTest A set of classes to automate unit testing of PyQt applications and GUIs. QtXML A set of classes that implement DOM and SAX parsers. QtAssistant A set of classes that enables the Qt Assistant online help browser to be integrated with an application. QAxContainer A set of classes for Windows that allows the integration of ActiveX controls and COM objects. A Windows installer is provided for the GPL version of PyQt to be used with the GPL version of Qt v4 (http://www.trolltech.com/download/qt/windows.html). It enabes a complete PyQt environment to be installed on Windows without the need for a C++ compiler. PyQt includes the pyuic utility which generates Python code to implement user interfaces created with Qt Designer in the same way that the uic utility generates C++ code. It is also able to load Designer XML files dynamically. Phil -- http://mail.python.org/mailman/listinfo/python-list
Re: Event driven server that wastes CPU when threaded doesn't
You got a lot of long-winded replies, but the short reply is that Twisted has packaged solutions for this. Seehttp://twistedmatrix.com/projects/core/enterprise Twisted provides an interface to any Python DB-API 2.0 compliant database through an asynchronous interface which allows database connections to be used, and multiplexed by multiple threads, while still remaining thread-safe for use with Twisted's event-based main loop. Twisted Enterprise provides these services by leveraging Twisted Internet's utilities for managing thread pools and asynchronous programming. Thanks for this - exactly what I needed. Thanks for the other replies too even if they weren't so much help :) -- http://mail.python.org/mailman/listinfo/python-list
Re: Trouble compiling win32all on Windows
Ross Ridge wrote: robert wrote: I've trouble compiling win32all. VC98 and latest SDK installed (otherwise with original SDK it won't even compile). It tells that uuid.lib(cguid_i.obj) : fatal error LNK1103: debug info is destroyed. The library isn't compatable with the compiler you're using. You'll need to use an older version of the Platform SDK that supports your compiler. thanks. the last Windows SDK supporting VC6 (Py2.3) is February 2003 Edition. If someone seeks here: MS' front pages tell you need to get it via CD. Yet this SDK exists (well hidden) on the net here: http://www.microsoft.com/msdownload/platformsdk/sdkupdate/psdk-full.htm wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.1.cab wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.2.cab wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.3.cab wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.4.cab wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.5.cab wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.6.cab wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.7.cab wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.8.cab wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.9.cab wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.10.cab wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.11.cab wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.12.cab wget http://download.microsoft.com/download/platformsdk/sdk/update/win98mexp/en-us/3790.0/FULL/PSDK-FULL.13.cab one needs to set IE as default browser during installation. otherwise setup.exe will fail. robert -- http://mail.python.org/mailman/listinfo/python-list
Re: string to list of numbers conversion
[EMAIL PROTECTED] wrote: Hi, I have a string '((1,2), (3,4))' and I want to convert this into a python tuple of numbers. But I do not want to use eval() because I do not want to execute any code in that string and limit it to list of numbers. Is there any alternative way? This is a possibile solution, no input errors are taken into account: s = '((1,2), (3,4), (-5,9.2))' from string import maketrans tab = maketrans((), , *4) s.translate(tab) ' 1 23 4-5 9.2 ' l = s.translate(tab).split() l ['1', '2', '3', '4', '-5', '9.2'] l2 = map(float, l) l2 [1.0, 2.0, 3.0, 4.0, -5.0, 9.1993] # This is partition(l2, 2) [l2[i:i+2] for i in xrange(0, len(l2), 2)] [[1.0, 2.0], [3.0, 4.0], [-5.0, 9.1993]] Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
forwarding *arg parameter
def g(*arg):
... return arg
...
g('foo', 'bar')
('foo', 'bar')
# seems reasonable
...
g(g('foo', 'bar'))
(('foo', 'bar'),)
# not so good, what g should return to get rid of the outer tuple
TV
--
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Re: forwarding *arg parameter
Tuomas schrieb:
def g(*arg):
... return arg
...
g('foo', 'bar')
('foo', 'bar')
# seems reasonable
...
g(g('foo', 'bar'))
(('foo', 'bar'),)
# not so good, what g should return to get rid of the outer tuple
g(*g('foo', 'bar'))
* and ** are the symetric - they capture ellipsis arguments, and they
make iterables/dicts passed as positional/named arguments.
Diez
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Re: Is there a commas-in-between idiom?
Tim Peters wrote: More idiomatic as if len(list) 0: and even more so as plain if list: print list[0], for element in list[1:]: print ',', element, Do you really want a space before and after each inter-element comma? No, but it was only an example. I usually go for string concatenation. An often-overlooked alternative to playing with ,.join() is: print str(list)[1:-1] That's funny! Not that I like it more that the join solution, but funny nevertheless. Thank you, Ernesto -- http://mail.python.org/mailman/listinfo/python-list
Re: forwarding *arg parameter
Diez B. Roggisch wrote:
Tuomas schrieb:
def g(*arg):
... return arg
...
g('foo', 'bar')
('foo', 'bar')
# seems reasonable
...
g(g('foo', 'bar'))
(('foo', 'bar'),)
# not so good, what g should return to get rid of the outer tuple
g(*g('foo', 'bar'))
* and ** are the symetric - they capture ellipsis arguments, and they
make iterables/dicts passed as positional/named arguments.
Diez
Thanks Diez
And what about this case if I want the result ('foo', 'bar')
def f(*arg):
... return g(arg)
...
f('foo', 'bar')
(('foo', 'bar'),)
def h(*arg):
... return arg[0]
...
g=h
f('foo', 'bar')
('foo', 'bar')
Where can g know it should use arg[0] when arg is forwarded?
TV
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Re: Really strange behavior
Il Sun, 05 Nov 2006 04:19:36 +1100, Steven D'Aprano ha scritto: Why don't you add some temporary print statements into your code to try to narrow it down? I did it and I followed the script with the dubugger and what I saw is that it gets lost in the simulate method of QTReactor instead if executing QTapplication. So I thought about some wrong rebinding of 'app' in the multiple functions call. I was guessing about some python error that I could not see. But the fact that neither you can't see anything wrong, let me guess about some problem with the reactor. Thank for your time. Licia -- http://mail.python.org/mailman/listinfo/python-list
Re: forwarding *arg parameter
Tuomas schrieb:
def g(*arg):
... return arg
...
g('foo', 'bar')
('foo', 'bar')
# seems reasonable
...
g(g('foo', 'bar'))
(('foo', 'bar'),)
# not so good, what g should return to get rid of the outer tuple
TV
Use the following then:
g(*g('foo', 'bar'))
('foo', 'bar')
Otherwise, you would have to check if arg is a 1-tuple consisting of a
tuple and strip it out then.
e.g.
def g(*arg):
... return arg[0] if isinstance(arg[0], tuple) else arg
...
g('foo', 'bar')
('foo', 'bar')
g(g('foo', 'bar'))
('foo', 'bar')
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Re: disabledforeground or similar for Entry (in Tkinter)
Since others want to see more, Try this, you can make the changes you want to the look of your final output with grid or pack_forget() . root = Tk() class Ktest: def __init__(self): self.Ftest1() def Ftest1(self): try: self.test2.grid_forget() except AttributeError : pass self.test1 = Button(root, text='Push #1 button', bg = 'yellow', width = 25, command = self.Ftest2, height = 25) self.test1.grid(row=0, column=0) def Ftest2(self): self.test1.grid_forget() self.test2 = Button(root, text='Push #2 button', bg = 'green', width = 25, command = self.Ftest1, height = 8) self.test2.grid(row=0, column=0) if __name__== '__main__' : Ktest() mainloop() jim-on-linux http://www.inqvista.com On Saturday 04 November 2006 11:03, Dustan wrote: Back in this post, I attempted to make a label look like a button: http://groups.google.com/group/comp.lang.pyth on /browse_thread/thread/a83195d3970a6851/2053cb aec 1bc1f19?auth=DQAAAHkMDAWnhNnzpuKlwOKZUwAG UTt T2Ay-EAB7rCY6SnwfnDzZ98M37bZDW2Is0LrBVrr8XEgP fcu OkiUE-CrSsKbBSX-67voDUXfbATBd0eYNMClezby4EXT2 fuL m6f0llJ_xMO8BfkjVho_7CZvlf_9tNGnJixTbq8zr21OD ZBh ouQ Alright, I've learned my lesson - don't use a new widget; modify the old one. Except the Entry widget doesn't have a disabledforeground option. Neither does the Text widget, but IDLE seems to accomplish making a disabled Text look the same as an enabled Text in the IDLE Help section. No, foreground (fg) and background (bg) don't make a difference; it still changes the color of the Entry widget upon disabling. There must be something I'm missing here... My previous post was hasty and we all know, Haste makes waste. Try this; If you use wiget-01.pack_forget() or wiget-01.grid_forget(), you can now build wiget-02 using wiget-02.pack or grid() for the same location. You can reinstall uninstalled wigets by using pack() or grid() again for those hidden wigets. However only after uninstalling for the wigets in those locations. root = Tk() test1 = Button(root, text='Test No.1 button', bg = 'yellow', width = 15, height = 10) test1.grid(row=0, column=0) test1.grid_forget() test2 = Button(root, text='Test #2 button', bg = 'green', width = 15, height = 10) test2.grid(row=0, column=0) mainloop() jim-on-linux http://www.inqvista.com -- http://mail.python.org/mailman/listinfo/python-list
Re: string to list of numbers conversion
[EMAIL PROTECTED] wrote:
This recipe fails when negative numbers are used.
safe_eval('(12, -12)')
*** Unsafe_Source_Error: Line 1. Unsupported source construct:
compiler.ast.UnarySub
But, I think it could be easily fixed for somebody who understands the
script.
I think that somebody could be you.
Can somebody help.
Start with
class SafeEval(object):
# ...
def visitUnarySub(self, node, **kw):
return -node.expr.value
and then add some error handling.
Peter
--
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Re: forwarding *arg parameter
On Sun, 05 Nov 2006 15:26:58 +, Tuomas wrote:
def g(*arg):
... return arg
...
g('foo', 'bar')
('foo', 'bar')
# seems reasonable
The function g:
- takes the arguments 'foo' and 'bar'
- collects them in a tuple named 'arg' = ('foo', 'bar')
- returns the tuple named arg
g(g('foo', 'bar'))
(('foo', 'bar'),)
The function g:
- takes the argument ('foo', 'bar')
- collects it in a tuple named 'arg' = (('foo', 'bar'),)
- returns the tuple named arg
The function is doing exactly the same as in the first case, except the
arguments are different.
# not so good, what g should return to get rid of the outer tuple
Why do you want to? The way the function is now makes perfect sense. All
argument types are treated in exactly the same way:
g(string) = tuple containing string
g(float) = tuple containing float
g(int) = tuple containing int
g(list) = tuple containing list
g(instance) = tuple containing instance
g(tuple) = tuple containing tuple
You could write something like this:
def g(*arg):
# Detect the special case of a single tuple argument
if len(arg) == 1 and type(arg[0]) == tuple:
return arg[0]
else:
return arg
but now tuple arguments are treated differently to all other data. Why do
you think you need that?
--
Steven
--
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Re: python GUIs comparison (want)
Paul Rubin wrote: No that would suck. Best to try to stay as close as possible to the native widgets on whatever the underlying platform is. If you want to depart from the native UI, then start from scratch and write a whole new window system with a complete app suite etc. Ok. But other than thinking it would suck, you're basically repeating my point about starting from scratch with a whole new suite of widgets. I think there are situations where having an app that looks completely different is a big bonus. Having developed apps for both engineers and non-technical people alike, sometimes the non-techs are much more impressed by the look/feel than what it actually does. Sometimes you want a tool that blends in. Sometimes you want one that stands out, especially when you're competing against other tools where they all kind of look the same. -- http://mail.python.org/mailman/listinfo/python-list
Wait for a system command executed in the background
Hello
I am new to python and I am really a bad programmer...
As a linux user, I use quodlibet for listening to music. Quodlibet
allows me to write plugins in python.
I am trying to write a plugins to burn a playlist by using cdrecord, and
this either in dao or tao mode.
The basic of this plugin is the following:
- make a temp directory
- convert the songs in my playlist into wave files in the temp directory
using mplayer and renaming them with 3 digits number so that the order
of my playlist is conserved
- normalize the wave files
- burn the cd
- delete the temp directory.
At the time, I have a working solution (not fully developped by
myself...), but in this solution os.system is used to start the
different shell commands and the commands do not have a at the end.
Therefore during the whole execution of the plugin, quodlibet is not
responsive.
What I would like to is program the whole such that I can use at the
end of the shell commands and each command to be executed one after the
other! (I tried to put simply at the end of each shell command with
the result that each where started at the same time)
Here is the plugin:
###
import os, string, re
import util
import sys
import shutil
from qltk import ErrorMessage
from shutil import copy
from plugins.songsmenu import SongsMenuPlugin
class _Base(SongsMenuPlugin):
PLUGIN_ICON = 'gtk-cdrom'
PLUGIN_VERSION = '0.1'
# XXX : pb potentiel: si deux utilisateurs utilisent ce plugin
# en meme temps, ils vont se marcher sur les pieds...
destdir = /tmp/cd_QL
convert_cmd = mplayer -ao pcm:file=%(dest)s %(source)s
normalize_cmd = normalize -m %(path)s/*.wav
burn_cmd = cdrecord -v -eject %(flags)s -pad -audio
%(path)s/*.wav
burn_flags = ''
def plugin_songs(self, songs):
if not self.check_mplayer():
return
self.setup()
try:
try:
for num, song in enumerate(songs):
self.makewav(song, num)
self.normalize()
self.burn()
except Exception, e:
ErrorMessage(
None,
Unknown error,
An error occured while processing files:\n%s. % e
).run()
finally:
self.teardown()
def check_mplayer(self):
if not util.iscommand(mplayer):
ErrorMessage(
None,
Mplayer not found,
Mplayer is used to convert files in wave files.
).run()
return False
return True
def setup(self):
os.mkdir(self.destdir)
def makewav(self, song, num):
source = song['~filename'].replace( , \
).replace(',\\')
dest = os.path.join(self.destdir, %03d.wav % num)
cmd = self.convert_cmd % dict(source=source, dest=dest)
os.system(cmd)
def normalize(self):
os.system(self.normalize_cmd % dict(path=self.destdir))
def burn(self):
flags = self.burn_flags
cmd = self.burn_cmd % dict(path=self.destdir, flags=flags)
os.system(cmd)
def teardown(self):
shutil.rmtree(self.destdir)
class DAO(_Base):
PLUGIN_ID = 'Burn CD w/o blanks'
PLUGIN_NAME = _('Burn CD w/o blanks')
PLUGIN_DESC = 'Burn CD w/o blanks.'
burn_flags = '-dao'
class TAO(_Base):
PLUGIN_ID = 'Burn CD with blanks'
PLUGIN_NAME = _('Burn CD with blanks')
PLUGIN_DESC = 'Burn CD with blanks.'
# on exporte seulement ces deux classes
__all__ = ['DAO', 'TAO']
#
and yeah, please consider that I am new to python and do understand
something to the thread!
Thanks in advance
--
Brice
Arch Linux (Linux user nb. 372699)
-
Unix IS user friendly, it is just selective about who his friends are
--
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socket.error.__bases__ = (EnvironmentError,) ?
I've often trouble catching IO errors in general. Now a frequent case everywhere in an app after I've added a defaultsockettimout. Is this a legal/right practice to change the Exception tree like this: socket.error.__bases__ = (EnvironmentError,) And is there a chance that in future there is a common base exception class (EnvironmentError or an new super class) for these kind of exceptions (socket, httplib, ftplib, ...) -robert -- http://mail.python.org/mailman/listinfo/python-list
python bindings
I have a header file and archive file for a C-api that I would like to interface via python. I tried using SWIG, but I get the error message to compile the object files with the -fPIC option. Since I do not have the source code, I cannot recompile. Can anyone suggest a way to get this C-api into python? Thanks, Lane Brooks -- http://mail.python.org/mailman/listinfo/python-list
Re: forwarding *arg parameter
Steven D'Aprano wrote:
snip
You could write something like this:
def g(*arg):
# Detect the special case of a single tuple argument
if len(arg) == 1 and type(arg[0]) == tuple:
return arg[0]
else:
return arg
but now tuple arguments are treated differently to all other data. Why do
you think you need that?
I am looking a shorter way to do the above in the case:
def g(*arg):
return arg
def f(*arg):
return g(arg)
How can g know if it is called directly with (('foo', 'bar'),) or via f
with ('foo', 'bar'). I coud write in f: return g(arg[0], arg[1]) if I
know the number of arguments, but what if I don't know that in design time?
TV
--
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Re: ANN: PyQt v4.1 Released
Riverbank Computing is pleased to announce the release of PyQt v4.1 available from http://www.riverbankcomputing.co.uk/pyqt/. What's the best way to learn pyqt. Do the examples from the book GUI Programming with Python: QT Edition still work? Is the material from the book mostly valid or have things changed quite a bit? http://www.commandprompt.com/community/pyqt/ Vineet -- http://mail.python.org/mailman/listinfo/python-list
Re: forwarding *arg parameter
Tuomas wrote:
def g(*arg):
return arg
def f(*arg):
return g(arg)
How can g know if it is called directly with (('foo', 'bar'),) or via f
with ('foo', 'bar'). I coud write in f: return g(arg[0], arg[1]) if I
know the number of arguments, but what if I don't know that in design time?
So it seems that I would like to have an unpack operator:
def f(*arg):
return(!*arg)
TV
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maybe this is a print odds
I come this code: Python 2.5 (r25:51908, Sep 19 2006, 09:52:17) [MSC v.1310 32 bit (Intel)] on win 32 Type help, copyright, credits or license for more information. class He(object): ... def __str__(self): ... return He ... hes = [He(),He(),He()] print hes [__main__.He object at 0x00BE92D0, __main__.He object at 0x00BE9370, __main __.He object at 0x00BE93B0] # I expect output: [He,He,He] print hes[0] He Do anyone know trick to overcome this or python has some proposal to extend print that can do iterately print? I just want to get the way of print which I my guess. Thanks a lot! -- http://mail.python.org/mailman/listinfo/python-list
Re: maybe this is a print odds
pipehappy wrote: I come this code: Python 2.5 (r25:51908, Sep 19 2006, 09:52:17) [MSC v.1310 32 bit (Intel)] on win 32 Type help, copyright, credits or license for more information. class He(object): ... def __str__(self): ... return He ... hes = [He(),He(),He()] print hes [__main__.He object at 0x00BE92D0, __main__.He object at 0x00BE9370, __main __.He object at 0x00BE93B0] # I expect output: [He,He,He] print hes[0] He Do anyone know trick to overcome this or python has some proposal to extend print that can do iterately print? I just want to get the way of print which I my guess. Thanks a lot! Lists print their items via repr(), not str(): class Ho(object): ... def __str__(self): ... return That's a bit early, don't you think? ... def __repr__(self): ... return Ho ... print [Ho()] * 3 [Ho, Ho, Ho] print Ho() That's a bit early, don't you think? Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: finding the list of the matched strings
James Stroud wrote: [snip] I think I'm having some network problems. I'll try again. Also the previous attempt had a typo (perhaps a freudian slip). Also this time you replied to the wrong thread :-) ,.join(some_list). By the way, don't name your own objects with the names of built-in types, such as list or str, etc. -- http://mail.python.org/mailman/listinfo/python-list
How to get/read Hard disk label / drive label
I want to read individual disk label for Hard disk (C: drive, D: drive disk label) and CD-ROM disk label Please provide some pointer to the code or document. Thanks in advance. -- http://mail.python.org/mailman/listinfo/python-list
Re: forwarding *arg parameter
Tuomas schrieb:
Tuomas wrote:
def g(*arg):
return arg
def f(*arg):
return g(arg)
How can g know if it is called directly with (('foo', 'bar'),) or via
f with ('foo', 'bar'). I coud write in f: return g(arg[0], arg[1]) if
I know the number of arguments, but what if I don't know that in
design time?
So it seems that I would like to have an unpack operator:
def f(*arg):
return(!*arg)
TV
Either you take one of the snippets here:
http://aspn.activestate.com/ASPN/search?query=flattensection=PYTHONCKBKtype=Subsection
or just use arg[0] clever (as mentioned a few times in this thread).
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sneak peak: pythonic math in the silicon forest
Greetings Pythoneers: Per usual, I've been walking this talk in Portland Open Source Capital Oregon revolving around Python as a math learning language, viewing math as an extensible type system (like Python) with such well-known inhabitants as Vector, Polynomial, Polyhedron and so on. Whereas I've been adjunct faculty by day, piggy backing on Portland State's bookkeeping, our Saturday Academy is in the midst of transitioning to an independent 501(c)(3), which will be better for fundraising (donors will know exactly where their money is going). Saturday Academy was established by Silicon Forest executives such as myself, but 23 years ago (i.e. before my time -- I'm aged forty nine or forty ten or like that), so I'm like this next-gen with a lot of new ideas inherited from the open source movement (a big part of Portland's economy these days). My first gig with this Academy was West Precinct, Hillsboro, a police station serving a large migrant population of Anglo, Euro and Latino Americans. That was a Linux heavy experience, thanks to my co-teacher Jerritt Collord, then of linuxfund.org and since moved on I know not where. Anyway, if you're a CS prof looking for cues, tips and/or tricks, you might be interested in my writeups, which occur in my blog and scattered in the various Python in Education groups, most notably edu-sig and edupython here on Google. Here're some blog links to get ya started. Feel free to send further inquiries by email: http://worldgame.blogspot.com/2006/11/more-pythonic-mathematics.html http://mybizmo.blogspot.com/2006/10/whiteboard-doodles.html (includes digicam shots of my whiteboard doodles). Other background: Kirby was Guido's side kick at this year's Shuttleworth Summit in London, starring Alan Kay, Helen King, other luminaries, aimed at kicking off Project Kusasa, a way of teaching analytical engineering type skills through TuxLabs and so forth in the Republic of South Africa. Kirby was also a volunteer xBase programmer for the Royal Kingdom of Bhutan, Office of the National Budget and Royal Insurance Company of Bhutan (RICB). Kirby Urner Ministry of Education Python Nation [EMAIL PROTECTED] [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Awesome Python Information
Check out: www.ChezBrandon.com -- http://mail.python.org/mailman/listinfo/python-list
Re: ANN: PyQt v4.1 Released
Thanks Phil, Can you put some hints about how to build QScintilla2 on Windows please ? -- http://mail.python.org/mailman/listinfo/python-list
Re: Programming Language that is Spreadsheet/Table Based
I think that Gnumeric lets you do some python stuff. Douglas Omar wrote: I'm looking for a programming language or module that sorta looks and feels like MS Excel (I love and think in tables), yet has the power and open-endedness of python or javascript. I'm still pretty new to python. any ideas? i've been having some fun with VBA in excel, but I want something I can save as en exe and call my own creation, y'know? -- http://mail.python.org/mailman/listinfo/python-list
question about loading variables from a file...
Can someone offer some advice as to how the best way to approach this might be? I am trying to write a generic python script to build out some applications, so the python script will be generic enough to work for all of them, but it needs to 'source' a file that contains app and environment specific variables. I have used WLST, which provides the loadProperties() method for reading values for weblogic domains, but I'm trying to find the best way to do the same sort of thing in python... thanks for any advice. -- http://mail.python.org/mailman/listinfo/python-list
Re: forwarding *arg parameter
Stargaming wrote:
Either you take one of the snippets here:
http://aspn.activestate.com/ASPN/search?query=flattensection=PYTHONCKBKtype=Subsection
or just use arg[0] clever (as mentioned a few times in this thread).
Thanks. My solution became:
def flattern(arg):
... result = []
... for item in arg:
... if isinstance(item, (list, tuple)):
... result.extend(flattern(item))
... else:
... result.append(item)
... return tuple(result)
...
def g(*arg):
... arg = flattern(arg)
... return arg
...
def f(*arg):
... return g(arg)
...
f('foo', 'bar')
('foo', 'bar')
TV
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Re: How to get/read Hard disk label / drive label
Praveen wrote in news:1162752076.121514.313750 @h48g2000cwc.googlegroups.com in comp.lang.python: I want to read individual disk label for Hard disk (C: drive, D: drive disk label) and CD-ROM disk label Please provide some pointer to the code or document. You could use: url: http://aspn.activestate.com/ASPN/docs/ActivePython/2.2/PyWin32/win32api__ GetVolumeInformation_meth.html which will require: http://sourceforge.net/projects/pywin32/ Or you can use this: http://windowssdk.msdn.microsoft.com/en-us/library/ms685899.aspx with this: http://docs.python.org/dev/lib/module-ctypes.html which is built in to python 2.5 Rob. -- http://www.victim-prime.dsl.pipex.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Awesome Python Information
Brandon [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Check out: www.ChezBrandon.com for awesome megalomania having nothing to do with Python. -- http://mail.python.org/mailman/listinfo/python-list
RAW network programming under Windows
RAW network programming under Windows it's not always possible because of the security limitations that microsoft introduced in the latest Windows versions and that affects WinSocket API. On UNIX systems I'm able to freely send raw packets (for example I'm able to compile IP packets with a src address defined by me) through raw socket API, but if I do the same on a Windows system socket module raises an error. Now I'm searching for something different from raw socket api, an extension module able to send arbitrary RAW packets through the network. I noticed that WinPcap (http://www.winpcap.org/) has a function to do that (pcap_sendpacket()) so I started to search a Python wrapping for WinPcap. I found: pcapy: http://oss.coresecurity.com/projects/pcapy.html pypcap: http://www.monkey.org/~dugsong/pypcap/ ...but none of them include a wrap for pcap_sendpacket() function. Does someone know if exist a *complete* Python wrapping of WinPcap library? -- http://mail.python.org/mailman/listinfo/python-list
[newbie] conditional imports
-- No virus found in this outgoing message. Checked by AVG Free Edition. -- http://mail.python.org/mailman/listinfo/python-list
Re: NEWBIE: Script help needed
Thanks for the reply, but I know there is something wrong with the command, I'm just not sure how to troubleshoot it. Anyway, I can execute all of the commands from the command line, but only 3 fails when run from within the script. I'll take a look at the link. Nick Vatamaniuc wrote: If the other commands work but 3) doesn't, it means there is something different (wrong?) with the command. So try running 3) , then one of the other ones and see the difference. The getCommandOutput() , I suspect, just waits for the data from the actual command and the command is not returning anything. It could be because it just takes way too long (I am not familiar with Gentoo, so not sure if emerge world takes 1 second or 24 hours...) or perhaps the emerge -uvp world stops at some point and is waiting for input (a command prompt like are you sure you want to do this [Y/n]? For more in depth on subprocesses in Python take a look at the subprocess module: http://docs.python.org/lib/module-subprocess.html Hope this helps, Nick V. Lorenzo wrote: I have this script that I want to use weekly to send me email with information regarding disk space and available upgrades for my system. This script is actually a learning tool for me as I learn Python. The problem I've run into has me stumped and I need some help. What happens is when the script runs it does these things, parses the result and appends that to an html string: 1) checks disk space by using df -t reiserfs 2) runs time emerge --sync 3) runs emerge -uvp world 4) runs emerge -uv --fetchonly world The 'emerge' command is a Gentoo specific one. If I remove step 3), everything else runs just fine, the email is sent and I receive what I expect. But when step 3) is allowed to run, even if its the only command that runs, it hangs somewhere in the function getCommandOutput. If I try and debug the command, it appears to hang on this line: err = child.wait() I suspect a race condition, but I'm not sure how to proceed, can someone lend me a hand. Here is the script I wrote, I got the command getCommandOutput from this site: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52296 TIA [code] #!/usr/bin/python ### NEED TO RUN THIS AS ROOT ### ### EMERGE SYNC REQUIRES THIS ### import os, re, smtplib, MimeWriter, mimetools, cStringIO, popen2, fcntl, select, pdb cmd = 'df -t reiserfs' finalList = [] theOutput = [] text = This realy should be in HTML html = html\ head\ meta http-equiv=\Content-Type\ content=\text/html; charset=iso-8859-1\\ /head\ BODYBRfont color='green'emDisk Utilization on Hedley:/em/fontBR out = cStringIO.StringIO() writer = MimeWriter.MimeWriter(out) txtin = cStringIO.StringIO(text) def createhtmlmail (html, text, subject): Create a mime-message that will render HTML in popular MUAs, text in better ones import MimeWriter import mimetools import cStringIO out = cStringIO.StringIO() # output buffer for our message htmlin = cStringIO.StringIO(html) txtin = cStringIO.StringIO(text) writer = MimeWriter.MimeWriter(out) # # set up some basic headers... we put subject here # because smtplib.sendmail expects it to be in the # message body # writer.addheader(Subject, subject) writer.addheader(MIME-Version, 1.0) writer.addheader(From, [EMAIL PROTECTED]) writer.addheader(To, [EMAIL PROTECTED]) # # start the multipart section of the message # multipart/alternative seems to work better # on some MUAs than multipart/mixed # writer.startmultipartbody(alternative) writer.flushheaders() # # the plain text section # subpart = writer.nextpart() subpart.addheader(Content-Transfer-Encoding, quoted-printable) pout = subpart.startbody(text/plain, [(charset, 'us-ascii')]) mimetools.encode(txtin, pout, 'quoted-printable') txtin.close() # # start the html subpart of the message # subpart = writer.nextpart() subpart.addheader(Content-Transfer-Encoding, quoted-printable) # # returns us a file-ish object we can write to # pout = subpart.startbody(text/html, [(charset, 'us-ascii')]) mimetools.encode(htmlin, pout, 'quoted-printable') htmlin.close() # # Now that we're done, close our writer and # return the message body # writer.lastpart() msg = out.getvalue() out.close() print msg return msg def makeNonBlocking(fd): fl = fcntl.fcntl(fd, fcntl.F_GETFL) try: fcntl.fcntl(fd, fcntl.F_SETFL, fl | os.O_NDELAY) except AttributeError: fcntl.fcntl(fd, fcntl.F_SETFL, fl | fcntl.FNDELAY) def getCommandOutput(command): theOutput = [] child = popen2.Popen3(command, 1) # capture stdout and stderr from command child.tochild.close() # don't need to talk to child
Re: python GUIs comparison (want)
Mudcat [EMAIL PROTECTED] writes: No that would suck. Best to try to stay as close as possible to the native widgets on whatever the underlying platform is. If you want to depart from the native UI, then start from scratch and write a whole new window system with a complete app suite etc. Ok. But other than thinking it would suck, you're basically repeating my point about starting from scratch with a whole new suite of widgets. No. In both cases I'm saying stick with a consistent set of widgets and visual look across all applications. Either use your OS's existing widget set and make your apps look like the existing apps for that OS, or else throw out all those apps and write a whole new set whose look is new, but is consistent across all of them. Sometimes you want a tool that blends in. Sometimes you want one that stands out, especially when you're competing against other tools where they all kind of look the same. This is what I'm saying would suck. Maybe the standing-out would get more attention but it's a nuisance for users. -- http://mail.python.org/mailman/listinfo/python-list
Re: python GUIs comparison (want)
Dennis Lee Bieber wrote: IOWs, eyecandy with no functionality... Sounds like the same mindset that creates entire web sites using Flash animations such that one /can not/ access them using a simple fast-loading text modes. Not exactly. Look...when you're using freeware to compete with OTS applications then you have to keep up with appearances. One of the apps I wrote was used by our Sales team to show to customers. These same customers are used to seeing flashy apps being shown to them all the time, and we are basically competing against other companies using these programs. Anyone who has written apps like this understand what a difference that first appearances make. You can take the exact same program, give it a flashier wrapper, and customers will automatically think it offers that much more. Customers usually only test drive these things long enough to get a feel for it, not long enough to understand what all it will do. Therefore you can get a competitive edge using something that sets it apart appearance-wise. It has nothing to do with being hollow inside. -- http://mail.python.org/mailman/listinfo/python-list
Re: Awesome Python Information
Brandon [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Check out: www.ChezBrandon.com By which he means, do NOT waste your time checking out this ridiculous website with absolutely no Python whatever anywhere. (This is the idiot who claims he saved the Congress from some Mossad poison gas attack, or whatever.) -- Paul -- http://mail.python.org/mailman/listinfo/python-list
simple way to un-nest (flatten?) list
There is I am sure an easy way to do this, but I seem to be brain dead
tonight. So:
I have a table such that I can do
[line for line in table if line[7]=='JDOC']
and
[line for line in table if line[7]=='Aslib']
and
[line for line in table if line[7]=='ASLIB']
etc
I also have a dictionary
r= {'a':('ASLIB','Aslib'),'j':('JDOC', 'jdoc')}
so I can extract values
r.values()
[('ASLIB', 'Aslib'), ('JDOC', 'jdoc')]
I would like to do
[line for line in table if line[7] in ('JDOC','jdoc','Aslib','ASLIB')]
so how should I get from
{'a':('ASLIB','Aslib'),'j':('JDOC','jdoc')}
to
('Aslib','ASLIB','JDOC','jdoc')
--
djc
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Re: Awesome Python Information
Thanks for the heads up. I spend enough time with the email without having to chase gosts. jim-on-linux http://www.inqvista.com On Sunday 05 November 2006 16:39, Paul McGuire wrote: Brandon [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] groups.com... Check out: www.ChezBrandon.com By which he means, do NOT waste your time checking out this ridiculous website with absolutely no Python whatever anywhere. (This is the idiot who claims he saved the Congress from some Mossad poison gas attack, or whatever.) -- Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: ANN: PyQt v4.1 Released
On Sunday 05 November 2006 7:19 pm, Tool69 wrote: Thanks Phil, Can you put some hints about how to build QScintilla2 on Windows please ? You mean something other than the installation instructions? Phil -- http://mail.python.org/mailman/listinfo/python-list
Re: tips requested for a log-processing script
Jaap wrote: Apart from this I have a configuration file, which contains the list of itemID's i need to focus on per month. Not all itemID's are relevant for each month, but for example only every second or third month. All records in the logfile with other itemID's can be ignored. I have yet to define the format of this configuration file, but am thinking about a 0 or 1 for each month, and then the itemID, like: 1 0 0 1 0 0 1 0 0 1 0 0 123456 for a itemID 123456 which only needs consideration at first month of each quarter. It's probably not necessary if your records are in the order of 100K, but if you're dealing with millions and above, you can write your config file in binary using the struct module and condense it down to 6 bytes per record (32 bits for the ID and 12 bits for the months occurences). Filtering will also be faster, as for each record you just have to do a bitwise AND with the 0..010...0 mask corresponding to a given month. George -- http://mail.python.org/mailman/listinfo/python-list
Re: ANN: PyQt v4.1 Released
On Sunday 05 November 2006 6:00 pm, vj wrote: Riverbank Computing is pleased to announce the release of PyQt v4.1 available from http://www.riverbankcomputing.co.uk/pyqt/. What's the best way to learn pyqt. Do the examples from the book GUI Programming with Python: QT Edition still work? Is the material from the book mostly valid or have things changed quite a bit? http://www.commandprompt.com/community/pyqt/ The basics haven't changed, but Qt v4 covers many more things than Qt v2. I think it's still perfectly valid for the basics - but API differences probably mean the examples need some changes. Phil -- http://mail.python.org/mailman/listinfo/python-list
Re: Wait for a system command executed in the background
On 2006-11-05, Dennis Lee Bieber [EMAIL PROTECTED] wrote:
On Sun, 5 Nov 2006 18:32:39 +0100, Brice
[EMAIL PROTECTED] declaimed the following in
comp.lang.python:
At the time, I have a working solution (not fully developped by
myself...), but in this solution os.system is used to start the
different shell commands and the commands do not have a at the end.
Therefore during the whole execution of the plugin, quodlibet is not
responsive.
Might it not be easier to just write each of those commands to a
temporary file, then at the end submit that file as a shell script that
runs in the background? {Maybe the last command should be one the
deletes the file itself?}
At the time being I don't see other possible solution. Let's see if
someone else's got an idea.
Thx
--
Brice
Arch Linux (Linux user nb. 372699)
-
Unix IS user friendly, it is just selective about who his friends are
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Re: simple way to un-nest (flatten?) list
djc wrote:
There is I am sure an easy way to do this, but I seem to be brain dead
tonight. So:
I have a table such that I can do
[line for line in table if line[7]=='JDOC']
and
[line for line in table if line[7]=='Aslib']
and
[line for line in table if line[7]=='ASLIB']
etc
I also have a dictionary
r= {'a':('ASLIB','Aslib'),'j':('JDOC', 'jdoc')}
so I can extract values
r.values()
[('ASLIB', 'Aslib'), ('JDOC', 'jdoc')]
I would like to do
[line for line in table if line[7] in ('JDOC','jdoc','Aslib','ASLIB')]
so how should I get from
{'a':('ASLIB','Aslib'),'j':('JDOC','jdoc')}
to
('Aslib','ASLIB','JDOC','jdoc')
Meet itertools:
from itertools import chain
names = set(chain(*r.itervalues()))
print [line for line in table if line[7] in names]
George
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Projecting MUD maps
Hello, I'm looking for an algorithm to project MUD maps such as the following map: http://www.aww-mud.org/maps/MUD_Maps/Caerin-colour.jpg MUD:s consists of rooms, each rooms has up to four orthogonal edges (north, east, west and south) that connects it to another room. So it is very easy to model a MUD as a directed graph. But projecting the graph on a surface is very complicated. For example, Room A:s North edge may connect it to Room B. But Room B:s South edge may connect it to Room C. Or another tricky example: Room A:s East edge connects it to Room B, whose East edge connect it to Room C, whose North edge connects it to Room D, whose West edge connects it to Room E, whose South edge connects it to Room A. In that example, there would be a hole between Room D and E. -- mvh Björn -- http://mail.python.org/mailman/listinfo/python-list
Re: Awesome Python Information
Paul McGuire wrote: Brandon [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Check out: www.ChezBrandon.com By which he means, do NOT waste your time checking out this ridiculous website with absolutely no Python whatever anywhere. (This is the idiot who claims he saved the Congress from some Mossad poison gas attack, or whatever.) -- Paul Nothing to do with Python? 1. Mossad is an agency of the state of Israel. 2. Some Israelis have long curly hair and wear big black hats. 3. Guy Fawkes and his co-conspirators in the alleged attempt to blow up the House of Lords in 1606 had long curly hair and wore big black hats. 4. Fawkes signed his name 'Guido. Q.E.D. -- http://mail.python.org/mailman/listinfo/python-list
Re: Programming Language that is Spreadsheet/Table Based
Omar wrote: I'm looking for a programming language or module that sorta looks and feels like MS Excel (I love and think in tables), yet has the power and open-endedness of python or javascript. I'm still pretty new to python. PyCells http://pycells.pdxcb.net/ http://pycells.pdxcb.net/wiki/index.php?title=Basic_Tutorial any ideas? i've been having some fun with VBA in excel but I want something I can save as en exe and call my own creation, y'know? You can also do Excel automation using Python. http://www.markcarter.me.uk/computing/python/excel.html There are many packaging tools for Python. Py2exe is the most popular. Although in Excel's case, it would be difficult to make stand alone. -- http://mail.python.org/mailman/listinfo/python-list
Re: forwarding *arg parameter
Dennis Lee Bieber wrote:
On Sun, 05 Nov 2006 17:42:30 GMT, Tuomas [EMAIL PROTECTED]
declaimed the following in comp.lang.python:
I am looking a shorter way to do the above in the case:
def g(*arg):
return arg
def f(*arg):
return g(arg)
How can g know if it is called directly with (('foo', 'bar'),) or via f
Typically, the responsibility should be on the CALLER, not the
CALLED..
def g(*arg):
... return arg
...
def f(*arg):
... return g(*arg) # unpack tuple on call
...
f(a, 1, 2)
('a', 1, 2)
Note how f() is calling g() using an * -- Since f() knows that its
arguments were packed it calls g() with an unpack marker. Then g()
gets the arguments via whatever scheme it was coded to use.
def f(*arg):
... return g(arg) # no tuple unpack
...
f(a, 1, 2)
(('a', 1, 2),)
I fylly agree with tis: Typically, the responsibility should be on the
CALLER, not the CALLED... I just don't know how to unpack *arg for
calling g. I can get the len(arg), but how to formulate an unpacked call
g(arg[0], arg[1], ..). Building a string for eval(g(arg[0], arg[1],
..)) seems glumsy to me.
TV
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SPE editor slow?
hello i've been using the SPE editor on a moderately large project and it's constantly pausing during editing, like it's attempting to check something as i edit. as you can imagine a 4 second pause every few characters is EXTREMELY annoying when you just want to get some work done. i really like SPE's layout and features but if it's going to be dogshit slow all the time i'll have to change. please help! -- http://mail.python.org/mailman/listinfo/python-list
Re: Projecting MUD maps
BJörn Lindqvist schrieb: Hello, I'm looking for an algorithm to project MUD maps such as the following map: http://www.aww-mud.org/maps/MUD_Maps/Caerin-colour.jpg MUD:s consists of rooms, each rooms has up to four orthogonal edges (north, east, west and south) that connects it to another room. So it is very easy to model a MUD as a directed graph. But projecting the graph on a surface is very complicated. For example, Room A:s North edge may connect it to Room B. But Room B:s South edge may connect it to Room C. Or another tricky example: Room A:s East edge connects it to Room B, whose East edge connect it to Room C, whose North edge connects it to Room D, whose West edge connects it to Room E, whose South edge connects it to Room A. In that example, there would be a hole between Room D and E. try graphviz. You can also annotate some compass information ther, I guess it should make for a better placement. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: RAW network programming under Windows
billie wrote: RAW network programming under Windows it's not always possible because of the security limitations that microsoft introduced in the latest Windows versions and that affects WinSocket API. On UNIX systems I'm able to freely send raw packets (for example I'm able to compile IP packets with a src address defined by me) through raw socket API, but if I do the same on a Windows system socket module raises an error. You can try to install Windows Services for Unix 3.5 (aka SFU 3.5). It transforms your Windows into a certified UNIX (not just a Unix clone). SFU 3.5 has a full BSD socket API (derived from OpenBSD), not just Winsock. As the POSIX subsystem in SFU 3.5 is not layered on top of the Win32 subsystem, but talks directly to the NT kernel, restrictions in Winsock should not affect the BSD sockets in SFU 3.5. This behaviour is different from e.g. Cygwin, where the Unix APIs are layered on top of the Win32 subsystem. In any case, I hope you are aware that spoofing IP packets gives you bad karma. -- http://mail.python.org/mailman/listinfo/python-list
Re: Projecting MUD maps
BJörn Lindqvist wrote: Hello, I'm looking for an algorithm to project MUD maps such as the following map: http://www.aww-mud.org/maps/MUD_Maps/Caerin-colour.jpg MUD:s consists of rooms, each rooms has up to four orthogonal edges (north, east, west and south) that connects it to another room. So it is very easy to model a MUD as a directed graph. But projecting the graph on a surface is very complicated. For example, Room A:s North edge may connect it to Room B. But Room B:s South edge may connect it to Room C. Or another tricky example: Room A:s East edge connects it to Room B, whose East edge connect it to Room C, whose North edge connects it to Room D, whose West edge connects it to Room E, whose South edge connects it to Room A. In that example, there would be a hole between Room D and E. -- mvh Björn I'm working on a text adventure where if the player types in n, w, e or s he/she gets something back like You go north, then turn around, then look left, right . . . finally you realize that you have no idea in which direction North is. It makes mapping more tedious, but also simplifies it and gives you more freedom. Or you could do something like this. rooms = [class instance, class instance, 0 (because there's no room here), . . . . . . . . . . .0, , class instance] But that would still only get you the mapping and not the implimentation, and it's untested by me because I chose not to do it. And for my closing remark: You know the game Zork? The people who made that game never made a grid or anything. I'd bet that in the class, they had a variable for NW, N, NE, E, SE, S, SW and W, and they probably even had a U and D for defining what rooms would be in those directions.. -- http://mail.python.org/mailman/listinfo/python-list
Re: wing ide vs. komodo?
vj [EMAIL PROTECTED] wrote in news:1162708898.962171.161120 @e3g2000cwe.googlegroups.com: The embedded python shell is also a useful feature. Yes, but Debug Probe and Stack Data absolutely rock! Can't live without them anymore. Just set a breakpoint, run your code end then you can inspect all of the structures via Stack Data, and you can play with those structures using Debug Probe. Huge productivity boost... -- ___Karlo Lozovina - Mosor | | |.-.-. web: http://www.mosor.net || ICQ#: 10667163 | || _ | _ | Parce mihi domine quia Dalmata sum. |__|_|__||_|_| -- http://mail.python.org/mailman/listinfo/python-list
Re: Is there a way to define a true global across modules?
Hendrik van Rooyen wrote: robert [EMAIL PROTECTED] wrote: Fredrik Lundh wrote: http://www.effbot.org/pyfaq/how-do-i-share-global-variables-across-modules.htm Or worse style - if you are too lazy to create a extra global variables module (ab)use the __main__ module als global: import __main__ __main__.mysemphore += 1 Thanks - how could you possibly have guessed that I am lazy - does it show that much? *WEG* You could merge the two approaches and bind a more explicit name to __main__: import __main__ as config config.mysemaphore = 0 It's a little clearer what you're subverting __main__ for here :) - alex23 -- http://mail.python.org/mailman/listinfo/python-list
Re: Pyro stability
Irmen, Thanks, you're very good about answering Pyro related questions! Thanks again. I posted a more detailed question to the mailing list describing as best I could how I want to use Pyro and the questions I have in regards to the system described. Doug Irmen de Jong wrote: writeson wrote: [some questions about Pyro] I've replied to this on Pyro's mailing list. -Irmen -- http://mail.python.org/mailman/listinfo/python-list
Re: Awesome Python Information
On Sun, 05 Nov 2006 17:05:10 -0500, jim-on-linux wrote: Thanks for the heads up. I spend enough time with the email without having to chase gosts. jim-on-linux http://www.inqvista.com On Sunday 05 November 2006 16:39, Paul McGuire wrote: Brandon [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] groups.com... Check out: www.ChezBrandon.com By which he means, do NOT waste your time checking out this ridiculous website with absolutely no Python whatever anywhere. (This is the idiot who claims he saved the Congress from some Mossad poison gas attack, or whatever.) -- Paul So I'm using a new fangled newsreader...[pan] and thought i'd test it's posting and headers on this silly thread...sorry if I wasted anyones time!. -- http://mail.python.org/mailman/listinfo/python-list
Python Distilled
I want to build a Python2.5 interpreter for an embedded system. I only have 4MB of RAM to play with, so I want to really minimise the python binary. Things I can think of removing safely are: - Unicode - Long numbers - Complex number - Compiler / Parser - Thread support - OS specific stuff I'd also like to remove any deprecated or stuff which is left in for backwards functionality (eg Classic classes). Google tells me that people have done this before, back in Python1.5.2 days. Has anyone tried to do this recently with a more modern Python? -Sw. -- http://mail.python.org/mailman/listinfo/python-list
Re: how to write code into a blog post?
On 4 Nov 2006 14:40:19 -0800, thebjorn
[EMAIL PROTECTED] wrote:
Jorge Vargas wrote:
Hi I know many people here blog so sorry for the OT.
Currently I have a wordpress install and went I wanted to post some
code I notice how painfull it is.
Indeed :-) I'm using the iG:Syntax Hiliter over on
http://blog.tkbe.org after I got some comments about the lack of
readability of my code samples ;-) It can be even more colorful than
I've set it up, but it handles a considerable number of languages and
is pretty simple to both use and manage. You can get it at:
http://blog.igeek.info/wp-plugins/igsyntax-hiliter/ I added the
following to the end of the stylesheet to make the code frame bigger
and dynamic:
div.igBar { width: 95%; }
div.syntax_hilite { width:95%; }
thanks I'll take a look at it
hth,
-- bjorn
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Re: tips requested for a log-processing script
Jaap [EMAIL PROTECTED] wrote: Python ers, As a relatively new user of Python I would like to ask your advice on the following script I want to create. I have a logfile which contains records. All records have the same layout, and are stored in a CSV-format. Each record is (non-uniquely) identified by a date and a itemID. Each itemID can occur 0 or more times per month. The item contains a figure/amount which I need to sum per month and per itemID. I have already managed to separate the individual parts of each logfile-record by using the csv-module from Python 2.5. very simple indeed. Apart from this I have a configuration file, which contains the list of itemID's i need to focus on per month. Not all itemID's are relevant for each month, but for example only every second or third month. All records in the logfile with other itemID's can be ignored. I have yet to define the format of this configuration file, but am thinking about a 0 or 1 for each month, and then the itemID, like: 1 0 0 1 0 0 1 0 0 1 0 0 123456 for a itemID 123456 which only needs consideration at first month of each quarter. My question to this forum is: which data structure would you propose? The logfile is not very big (about 200k max, average 200k) so I assume I can store in internal memory/list? How would you propose I tackle the filtering of relevant/non-relevant items from logfile? Would you propose I use a filter(func, list) for this task or is another thing better? In the end I want to mail the outcome of my process, but this seems straitforward from the documentation I have found, although I must connect to an external SMTP-server. Any tips, views, advice is highly appreciated! Jaap PS: when I load the logfile in a spreadsheet I can create a pivot table which does about the same ;-] but that is not what I want; the processing must be automated in the end with a periodic script which e-mails the summary of the keyfigure every month. I would do something like this: (obviously untested) for line in readlines(open(logfile,r,1)): (code to get hold of item, date, amount) if item not in item_dict: item_dict[item] = [(date,amount)] else: item_dict[item].append(date,amount) this will give you, for each unique item, a direct ref to wherever its been used. I would then work through the config file, and extract the items of interest for the run date... HTH - Hendrik -- http://mail.python.org/mailman/listinfo/python-list
adding python scripting to my application
Hi, first of all, I have to say I am new to Python. I have been working with a finite element analysis program written in c++. now, I am trying to 'rebuild' this code (possibly a full re-write) with scripting capability. I did some reading on the web, and found that there are two ways to do this : extending and embedding. and I still haven't figured out what I should be using. I guess the first thing is to figure out what I am to do with the scripting capability - at the very least, I would like to run parametric analyses - run multiple analysis models by changing certain parameters using for loops. i found that the commercial fea package - abaqus uses python as well - I don't know whether they embedded or extended ? is there any way to find out? another fea application called OOF2 (http://www.ctcms.nist.gov/oof/oof2/#features) says OOF2 is completely scriptable in Python. and I don't really understand what that means... maybe I haven't grasped the full potential of what python scripting could do for an fea program. can you tell me how to decide what path I should take - embed or extend ? or maybe some one could point me to some document/webpage that talks about this. thanks a lot, Julian. PS, my fea program uses its own script to read the analysis model information using the c++ iostream and our own parsing functions - but I don't have to stick to those function when I am writing the new code. -- http://mail.python.org/mailman/listinfo/python-list
Re: wing ide vs. komodo?
Karlo Lozovina wrote: vj [EMAIL PROTECTED] wrote in news:1162708898.962171.161120 @e3g2000cwe.googlegroups.com: The embedded python shell is also a useful feature. Yes, but Debug Probe and Stack Data absolutely rock! Can't live without them anymore. Just set a breakpoint, run your code end then you can inspect all of the structures via Stack Data, and you can play with those structures using Debug Probe. Huge productivity boost... Those are pretty basic features that any environment supporting a symbolic python debugger should have, they're not a distinguishing feature for one particular IDE--I wouldn't expect any environment that didn't allow that to even be in the discussion. -- http://mail.python.org/mailman/listinfo/python-list
Timer Usage
I'm planning to do C++ development together with Python on Linux. I understand that Linux allows only one timer per process. Does Python use the Linux timer? If so, how do I use the timer without interfering with Python? -- http://mail.python.org/mailman/listinfo/python-list
how can I send several command by useing pexpect ssh
I have studied pexpect example sshls.py and ssh_session.py, trying to carry several linux command by ssh. for example. 1. ssh connect one remotehost, 2. cd /tmp directory 3. mkdir myname 4. touch output.log But I found these examplesonly can carry one command.who knows how to carry sereval linux command continuely. Background: I have hundreds computers, and try to control all computers at one time. thank you very much. -- http://mail.python.org/mailman/listinfo/python-list
Re: how do I pass values between classes?
hi, Larry Bates thanks for the reply... You might consider doing it the same way wx passes things around. When you instantiate the subclass pass the parent class' instance as first argument to __init__ method. Yes thats absolutely right.. That way the subclass can easily pass values back to the parent by using that pointer. Could you please explain me this.. more clearly. I think it is much close to the solution. Thank you. regards, sudhir -- http://mail.python.org/mailman/listinfo/python-list
Re: Is there a way to define a true global across modules?
alex23 [EMAIL PROTECTED] wrote: Hendrik van Rooyen wrote: robert [EMAIL PROTECTED] wrote: Fredrik Lundh wrote: http://www.effbot.org/pyfaq/how-do-i-share-global-variables-across-modules.htm Or worse style - if you are too lazy to create a extra global variables module (ab)use the __main__ module als global: import __main__ __main__.mysemphore += 1 Thanks - how could you possibly have guessed that I am lazy - does it show that much? *WEG* You could merge the two approaches and bind a more explicit name to __main__: import __main__ as config config.mysemaphore = 0 It's a little clearer what you're subverting __main__ for here :) - alex23 Thanks - clever and clear! - Hendrik -- http://mail.python.org/mailman/listinfo/python-list
Re: question about loading variables from a file...
On Nov 5, 2:26 pm, avidfan [EMAIL PROTECTED] wrote: Can someone offer some advice as to how the best way to approach this might be? I am trying to write a generic python script to build out some applications, so the python script will be generic enough to work for all of them, but it needs to 'source' a file that contains app and environment specific variables. I have used WLST, which provides the loadProperties() method for reading values for weblogic domains, but I'm trying to find the best way to do the same sort of thing in python... Try configparser: http://docs.python.org/lib/module-ConfigParser.html -- http://mail.python.org/mailman/listinfo/python-list
[ python-Bugs-1590036 ] __getattr__ = getattr crash
Bugs item #1590036, was opened at 2006-11-03 16:44 Message generated for change (Comment added) made by arigo You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1590036group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Interpreter Core Group: Python 2.5 Status: Closed Resolution: Duplicate Priority: 6 Private: No Submitted By: Brian Harring (ferringb) Assigned to: Armin Rigo (arigo) Summary: __getattr__ = getattr crash Initial Comment: class c(object):__getattr__ = getattr c().spam segfault from overflowing the c stack Now granted... it's retarded to attempt this. But out of curiousity, I decided to be the retard, and noticed the interpreter crashes instead of triggering a RuntimeError for recursion. As far as I know, getattr is instrumented with Py_EnterRecursiveCall and Py_LEaveRecursiveCall... so a bit curious as to how it's occuring. -- Comment By: Armin Rigo (arigo) Date: 2006-11-05 09:30 Message: Logged In: YES user_id=4771 This is a particular case of bug #1202533. With Brett we arrived at a patch in #1202533 which should solve a family of similar problems. Can you check that it also solves the __getattr__=getattr attack? If so, we should check in Brett's patch. -- Comment By: Brian Harring (ferringb) Date: 2006-11-05 03:57 Message: Logged In: YES user_id=874085 can do the same trick with hasattr also (same type of fix)... -- Comment By: Neal Norwitz (nnorwitz) Date: 2006-11-04 19:40 Message: Logged In: YES user_id=33168 The attached patch fixes this problem. However, I'm concerned there are more places like this. I hope Armin has some ideas if more things are needed to fix this problem. -- You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1590036group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[ python-Bugs-1590804 ] python: Python/ast.c:541: seq_for_testlist: Assertion
Bugs item #1590804, was opened at 2006-11-05 08:13 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1590804group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Interpreter Core Group: AST Status: Open Resolution: None Priority: 5 Private: No Submitted By: Jay T Miller (jaytmiller) Assigned to: Nobody/Anonymous (nobody) Summary: python: Python/ast.c:541: seq_for_testlist: Assertion Initial Comment: When I build Python for debug using --with-pydebug on linux platforms (RHEL3 or FC6) I get the following assertion error when I try to install numpy-1.0: [EMAIL PROTECTED] numpy-1.0]$ python setup.py install Running from numpy source directory. python: Python/ast.c:541: seq_for_testlist: Assertion `((n)-n_type) == 326 || ((n)-n_type) == 318 || ((n)-n_type) == 319 || ((n)-n_type) == 300' failed. Abort -- You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1590804group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[ python-Bugs-1590864 ] subprocess deadlock
Bugs item #1590864, was opened at 2006-11-05 11:06 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1590864group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Library Group: Python 2.5 Status: Open Resolution: None Priority: 5 Private: No Submitted By: Michael Tsai (michaeltsai) Assigned to: Nobody/Anonymous (nobody) Summary: subprocess deadlock Initial Comment: When I use subprocess.py from a child thread, sometimes it deadlocks. I determined that the new process is blocked during an import: #0 0x90024427 in semaphore_wait_signal_trap () #1 0x90028414 in pthread_cond_wait () #2 0x004c77bf in PyThread_acquire_lock (lock=0x3189a0, waitflag=1) at Python/thread_pthread.h:452 #3 0x004ae2a6 in lock_import () at Python/import.c:266 #4 0x004b24be in PyImport_ImportModuleLevel (name=0xaad74 errno, globals=0xbaed0, locals=0x502aa0, fromlist=0xc1378, level=-1) at Python/import.c:2054 #5 0x0048d2e2 in builtin___import__ (self=0x0, args=0x53724c90, kwds=0x0) at Python/bltinmodule.c:47 #6 0x0040decb in PyObject_Call (func=0xa94b8, arg=0x53724c90, kw=0x0) at Objects/abstract.c:1860 and that the code in question is in os.py: def _execvpe(file, args, env=None): from errno import ENOENT, ENOTDIR I think the problem is that since exec (the C function) hasn't yet been called in the new process, it's inherited from the fork a lock that's already held. The main process will eventually release its copy of the lock, but this will not unlock it in the new process, so it deadlocks. If I change os.py so that it imports the constants outside of _execvpe, the new process no longer blocks in this way. This is on Mac OS X 10.4.8. -- You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1590864group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
