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Re: Finite State Machine GUI editor in python?
Hendrik van Rooyen a écrit : I have spent some time googling and on wiki and came up with pyFSA in python. It may end up being useful, but it is not directly what I am looking for, as there is no GUI that I can see. I know about SMC, but it is not Python, and I can't find the gui. This looks good, but it seems to be in a Latin based language and I am linguistically challenged: http://www.ucse.edu.ar/fma/sepa/edt.htm I am looking for a similar front end, going from pretty pictures of state diagrams to some sort of state machine descriptor language or specification file, and I am not very fussy about the format of the output at this stage. Does anyone know of such an animal that is FOSS? - if written in Python it will be a bonus! It will also help if its in a language I can understand. : - ( Hi Hendrik, I've bookmarked these ones : http://www.univ-paris12.fr/lacl/pommereau/tlf/index.html [in French] http://www.ncc.up.pt/~nam/ [look at the FAdo project] http://www.cs.usfca.edu/~jbovet/vas.html [written in Java] I hope it helps you, Christophe. -- http://mail.python.org/mailman/listinfo/python-list
Re: About Rational Number (PEP 239/PEP 240)
Rationals are not that simple. So do complex number, in fact most people are much more familiar with rationals/fractions than with complex number. And notice that I don't use the word simple, I use the word elementary. Elementary doesn't always means simple (although it usually is), but rather it emphasizes on it being essential and being a basic building block for other things. And if you think about it, floating numbers aren't that simple either. It only seems simple because it's implemented natively in the hardware, but I'm sure the engineers creating them have a heated discussion when they first try to implement it. Remember the discussion about Decimals? How many rounding methods are there? * Unless you are working under very controlled conditions, rationals very quickly grow enormous numerators and denominators, hence require arbitrary precision integers (which, I concede, are part of Python). One part of the problem is solved (arbitrary length integers) another problem is the growth of rationals. That could have easy workaround, like a scientific calculator, by using a special operator to construct a fractions, people would only _consciously_ use fractions, avoiding unexpected return of fraction AND controlled environment for using fraction. It's also possible to have lossy_simplify(n[, acc]) method for calculations that need rationals but don't need such accuracy (in that case, perhaps float could be a better substitute). * In order to have a canonical representation of integers, they need to be kept in normalised form. There are methods to simplify fractions and there are addition, subtraction, division, multiplication, etc can be made to automatically returns the most simple form. [btw, off topic, in music, isn't 1/4 and 2/8 different? I'm not very keen of music though, so correct me if I'm wrong.] * Having yet another numerical type would make it difficult what type to expect from a calculation. There is a simple rule of thumb: If a (built-in) method receives floats returns floats, else returns fractions Please don't take me too literally here, apply some compromises. The rationale is simple: Float's can't be turned easily into fraction, while the otherwise involves only a simple true division. Which only seems to me to prove that having integer division return a floating value is a mistake Oh no, it's not a mistake. Only IEEE's floating point standard isn't sufficient to cope with exact arithmetic. Another reason to use fractions. So while rationals might be useful to have available for some things, you should have to explicitly ask for them. Returning rationals from '/' applied to integers would be a bad idea, for example. From my reading of the PEP, it doesn't suggest such automatic coercions (neither rejects them explicitly though). Given the huge discussions about integer vs true division, it would be very controversial to suggest implicit rational division. Which I agree, implicit rational division would be evil. People should explicitly use fractions, using a special division operators, just like calculators (although mine seems to always use fractions 'behind- the-scenes' whenever possible, but on presenting them to the user it does the rule of thumbs I mentioned). Regardless, a builtin (or at least standard library) rational type would be nice to have. Of course folks that *really need* rationals are already using some 3rd party library, but for the rest of us it would be an improvement in several cases where currently floats are used, just like the motivation for Decimals. Only difference seems to be that there aren't so many or compelling use cases for rationals as for decimals (mainly money counting). People have, for ages used floating numbers in calculation on occasions where it shouldn't be used, and that's a really bad practice and even prominent (paper) mathematician are accustomed to such practice. Floating numbers involves rounding and continued use of them would make the value wanders off far away. -- http://mail.python.org/mailman/listinfo/python-list
Re: Inter-process communication, how?
On Dec 16, 5:24 am, John Machin [EMAIL PROTECTED] wrote: Yes. Consider this: If you were to run your calculation script from the shell prompt [strongly recommended during testing], how would you tell it the name of the file? Now look at the docs again. File arguments! Of course, totally forgot about them! Thanks a lot! PS: both with mmpam and temp file you probably meant that I should hard code some as-weirdest-filename-as-possible two both programs but what if I run the computation several times? That's mmap, not mmpam. No, Dennis didn't mean that you should hard code a filename. Have a look at the tempfile module. Now I recall I read I somewhere that network communication is so much faster than disk access (especially on the same machine, as steve howell suggested) so instead of file names I probably should find out which port is open to use. -- http://mail.python.org/mailman/listinfo/python-list
Re: Inter-process communication, how?
On Dec 16, 6:38 am, Dennis Lee Bieber [EMAIL PROTECTED] wrote: Read the details for subprocess.Popen() again... /args/ should be a string, or a sequence of program arguments. The program to execute is normally the first item in the args sequence or string, but can be explicitly set by using the executable argument. IOWs, passing it what you would enter on a command line subscript.py tempfilename [subscript.py, tempfilename] should be sufficient. There is a module that can generate temporary file names, though for this usage you could even do something to obtain the parent program process ID along with a timestamp and create a file name from all that. What are the odds that your several times would have the same clock time? Quite small, I guess. However, perhaps I should better consider using sockets. Thanks! ps: I really like how you format the paragraphs! :) -- http://mail.python.org/mailman/listinfo/python-list
How to generate pdf file from an html page??
Hi everyone, I am trying to generate a PDF printable format file from an html page. Is there a way to do this using python. If yes then which library and functions are required and if no then reasons why it cant be done. Thank you All -- http://mail.python.org/mailman/listinfo/python-list
python-xlib question
Hi, sorry for my English. I'm writing my first python script for Linux for a remote bluetooth application. I'm using python-xlib library to send keyboard and mouse events and at the moment I can send keyboard emulated input to the window where pointer is on, i can also move the pointer over the desktop. I'm using python 2.5 on a Ubuntu 7.10 system with gnome and compiz However the method fails when i try to emulate mouse clicks Here follows the code I'm using, if you change ButtonPress and ButtonRelease with KeyPress and KeyRelease and change the detail of ev_d it works #!/usr/bin/env python import Xlib.display import Xlib.X import Xlib.XK import Xlib.error import time display = Xlib.display.Display() screen = display.screen() root = screen.root pointer=root.query_pointer() #Get info like window where pointer is on and pointer position window=pointer.child ev_d = dict( time = 0, # Time of the event (useful for double- clicks for mouse events) root = root, window = pointer.child, #The window where is the pointer same_screen = 1, child = Xlib.X.NONE, root_x = pointer.root_x, root_y = pointer.root_y, event_x = pointer.win_x, event_y = pointer.win_y, state = Xlib.X.NONE, detail =Xlib.X.Button1 ) ev2_dict = ev_d.copy() ev2_dict['state'] = Xlib.X.Button1 8 # that is ButtonXMask ev=Xlib.protocol.event.ButtonPress(**ev_d) ev2=Xlib.protocol.event.ButtonRelease(**ev2_dict) display.send_event(Xlib.X.PointerWindow,ev) display.sync() # Send the inserted events time.sleep(500/1000) display.send_event(Xlib.X.PointerWindow,ev2) display.sync() # Thanks to who wants help me Bye, Giovanni -- http://mail.python.org/mailman/listinfo/python-list
Re: About Rational Number (PEP 239/PEP 240)
On Sat, 15 Dec 2007 22:20:22 -0800, Dennis Lee Bieber wrote: On Sun, 16 Dec 2007 06:09:06 -, Steven D'Aprano [EMAIL PROTECTED] declaimed the following in comp.lang.python: Yes, but my point (badly put, I admit) was that people find fractions far easier to work with than they find floating point numbers. And with any rational data type worth the name, you simply should never get anything as unintuitive as this: from __future__ import division 4/10 + 2/10 == 6/10 False Which only seems to me to prove that having integer division return a floating value is a mistake G What integer division? It's floating point division. The / operator creates floats. If I wanted integer division, I would have used //. My background with mostly ancient languages (FORTRAN) reads that and sees 0 + 0 == 0, With some floating point implementations, one can find values such that x == 0.0 and y == 0.0 but x + y != 0.0. and 4.0/10.0 + 2.0/10.0 == 6.0/10.0 automatically makes me leery... *shrug* That's the whole point. Floating point math is weird. Rationals are not. Using floats when you actually need rationals is dangerous. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Inter-process communication, how?
Just for the record: http://www.amk.ca/python/howto/sockets/ Of the various forms of IPC (Inter Process Communication), sockets are by far the most popular. On any given platform, there are likely to be other forms of IPC that are faster, but for cross-platform communication, sockets are about the only game in town. -- http://mail.python.org/mailman/listinfo/python-list
OpenOpt install
What do I need to do? I have numpy, scipy (Fedora F8) cd openopt/ [EMAIL PROTECTED] openopt]$ python setup.py build running build running config_cc unifing config_cc, config, build_clib, build_ext, build commands --compiler options running config_fc unifing config_fc, config, build_clib, build_ext, build commands --fcompiler options running build_py creating build creating build/lib creating build/lib/scikits copying scikits/__init__.py - build/lib/scikits creating build/lib/scikits/openopt copying scikits/openopt/__init__.py - build/lib/scikits/openopt copying scikits/openopt/info.py - build/lib/scikits/openopt copying scikits/openopt/oo.py - build/lib/scikits/openopt Traceback (most recent call last): File setup.py, line 101, in module import scikits ImportError: No module named scikits -- http://mail.python.org/mailman/listinfo/python-list
python docs in contrib?
Hi,
I was surprised to find python2.{4,5}-doc in contrib and wondered why?
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Re: Is Python really a scripting language?
On Dec 14, 3:15 pm, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: On Dec 14, 2:48 pm, Chris Mellon [EMAIL PROTECTED] wrote: On Dec 14, 2007 2:09 PM, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: On Dec 11, 10:34 pm, Terry Reedy [EMAIL PROTECTED] wrote: Ron Provost [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] But here's my problem, most of my coworkers, when they see my apps and learn that they are written in Python ask questions like, Why would you write that in a scripting language? Whenever I hear a comment like that I can feel myself boiling inside. === I don't blame you. Python is an full-fledged algorithm/programming language that was designed to *also* be used a scripting language. When you buy a new car, which is more important, the styling or what's under the hood? snip That's for the whole sequence, not a single term! 25.67 MINUTES compared to 17.65 HOURS! So, sure, some languages compile to .exe programs. In the trade, we call that polishing a turd. While I agree with the sentiment, surely this can't be a good example of F#s general performance? Of course. They example was deliberately chosen to make F#'s BigInt library look as bad as possible. I would expect .NET code to smoke stock (non-Psycoed) Python in this benchmark. Probably. It just so happens that the example chosen is typical of _my_ number theory research and I was toying with the idea of converting my Collatz Conjecture function library to F#. And that would take a lot of work since F# doesn't have anywhere near the functionality of gmpy. There isn't even a BigInt.mod function for cryin' out loud, let alone stuff like GCD or modular inverse, critical to my research. Sure, I could write my own Extended Euclidean Algorithm, but now that I now that F# is just a Volkswagen with a fiberglass shell that looks like a Ferrari, there isn't much point, eh? And don't even get me started about the stupid stuff, like having TWO different type of Big Rationals. One's more efficient than the other, they say. So why two? The less efficient one has functions not implemented in the other. And F# is strongly typed, so you can't use BigRational methods with BigNum types. And they have all sorts of conversion methods for to/from ints, strings, bigints, etc. Guess which conversions they don't have? BigRational - BigNum, of course. MAybe I'll check it out again in the future after it has gone through several revisions. Since F# is a caml derivative, you may want to look at OCaml. Though, I've never used OCaml for any kind of heavy number-crunching, so maybe it has even worse library support; can't say. Ps. The two types are probably for boxed and unboxed versions, q.v. this article, about half- way down: http://msdn.microsoft.com/msdnmag/issues/1200/dotnet/ Regards, Jordan -- http://mail.python.org/mailman/listinfo/python-list
Re: python docs in contrib?
Tshepang Lekhonkhobe wrote:
Hi,
I was surprised to find python2.{4,5}-doc in contrib and wondered why?
What contrib?
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Re: python docs in contrib?
On Dec 16, 2007 4:33 PM, Jorge Godoy [EMAIL PROTECTED] wrote:
Tshepang Lekhonkhobe wrote:
Hi,
I was surprised to find python2.{4,5}-doc in contrib and wondered why?
What contrib?
contrib section of the archive, as opposed to main
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Re: python docs in contrib?
On Dec 16, 2:43 pm, Tshepang Lekhonkhobe [EMAIL PROTECTED] wrote:
On Dec 16, 2007 4:33 PM, Jorge Godoy [EMAIL PROTECTED] wrote:
Tshepang Lekhonkhobe wrote:
Hi,
I was surprised to find python2.{4,5}-doc in contrib and wondered why?
What contrib?
contrib section of the archive, as opposed to main
Are you refering to debian packages for python? In this case
you may be better off posting on one of the debian mailing lists.
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Re: python docs in contrib?
Tshepang Lekhonkhobe wrote:
On Dec 16, 2007 4:33 PM, Jorge Godoy [EMAIL PROTECTED] wrote:
Tshepang Lekhonkhobe wrote:
Hi,
I was surprised to find python2.{4,5}-doc in contrib and wondered why?
What contrib?
contrib section of the archive, as opposed to main
doc is right on the root of the tarball for Python 2.5.1.
Are you sure you are not talking about any distribution package or something
like that?
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Re: python docs in contrib?
On Dec 16, 2007 4:49 PM, Arnaud Delobelle [EMAIL PROTECTED] wrote:
On Dec 16, 2:43 pm, Tshepang Lekhonkhobe [EMAIL PROTECTED] wrote:
On Dec 16, 2007 4:33 PM, Jorge Godoy [EMAIL PROTECTED] wrote:
Tshepang Lekhonkhobe wrote:
Hi,
I was surprised to find python2.{4,5}-doc in contrib and wondered why?
What contrib?
contrib section of the archive, as opposed to main
Are you refering to debian packages for python? In this case
you may be better off posting on one of the debian mailing lists.
Second time I made the mistake of posting to python-list instead of
debian-python. Forgive me.
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why this error?
hello friends, the question had show bellow, any friend can tell me why. thanks. list: def test(): exec import sys a=range(15) b=[13,3] c=filter(lambda x: x not in b,a) return c print test() run result: File a.py, line 2 exec import sys SyntaxError: unqualified exec is not allowed in function 'test' it contains a nested function with free variables and must be change to bellow, then OK: b=None def testFilter(x): global b return x not in b def test(): exec import sys global b a=range(15) b=[13,3] c=filter(testFilter,a) return c print test() last run result is: [0, 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14] any friend can tell me why? thanks alot very much!!-- http://mail.python.org/mailman/listinfo/python-list
IDLE question
I'm using IDLE for my Python programming. I can't seem to solve one issue though. Whenever I try to indent a region of code, I simply select it and hit the tab key, as I usually do in most editors, like GEdit or Geany on Linux, for instance, and it works fine. But, if I try to unindent a region of code, which i would do by pressing Shift- Tab in other editors, it just won't work, and I can't find any combination that will. Anybody know if this operation is possible at all with IDLE, and if it is, what's the combination of keys? Thanx. Rock -- http://mail.python.org/mailman/listinfo/python-list
Re: How to generate pdf file from an html page??
I'm sure it can be done but there is no reason to reinvent the wheel unless it's for a programming exercise. You can use pdftohtml and run it from a Python program if you want. http://pdftohtml.sourceforge.net/ -- http://mail.python.org/mailman/listinfo/python-list
Re: How to generate pdf file from an html page??
Sorry, I read that backwards. I do it the opposite of you. Anyway a google for html to pdf python turns up a lot of hits. Again, no reason to reinvent the wheel. -- http://mail.python.org/mailman/listinfo/python-list
Re: About Rational Number (PEP 239/PEP 240)
In article [EMAIL PROTECTED], George Sakkis [EMAIL PROTECTED] wrote: Regardless, a builtin (or at least standard library) rational type would be nice to have. Of course folks that *really need* rationals are already using some 3rd party library, but for the rest of us it would be an improvement in several cases where currently floats are used, just like the motivation for Decimals. Only difference seems to be that there aren't so many or compelling use cases for rationals as for decimals (mainly money counting). You've precisely hit on the problem: previous discussion about rationals has bogged down because proponents insisted on making it a built-in type rather than a library. If a PEP were submitted with code for a library, there would be little trouble getting it accepted -- just like Decimal. Even now, after a couple of releases with Decimal in the library, there remains much opposition to a Decimal built-in, not even talking about Decimal literals. -- Aahz ([EMAIL PROTECTED]) * http://www.pythoncraft.com/ Typing is cheap. Thinking is expensive. --Roy Smith -- http://mail.python.org/mailman/listinfo/python-list
Re: About Rational Number (PEP 239/PEP 240)
Steven D'Aprano wrote: Yes, but my point (badly put, I admit) was that people find fractions far easier to work with than they find floating point numbers. I'm not so sure. I got caught by the comic XKCD's infinite-resistor-grid thing, and simplified it to a ladder network -- call it L -- made up of 2 1-ohm resistors in series with a 1-ohm resistor paralleled by L. Simulating this -- assuming an arbitrary endpoint with resistance 3 -- well, it takes a little thought to decide that 11/15 3/4, and a lot more to decide the same thing for 153/209 and thus decide whether the series is coming or going. Then when you work out the right answer from L = 2 + (L / (L+1)) that answer depends on sqrt(12), which Rationals handle just as badly as floats, and at far greater expense. I wrote a Rational class back when I was learning to do these things in Python, and it was actually pretty easy: a dash of GCD, a pinch of partial fractions, and a lot of following the Python Reference Manual. It eventually worked as advertised, but I haven't used it since. It could stand to be updated to use the __new__ method and produce genuinely immutable instances, if I could find the source. Mel. And with any rational data type worth the name, you simply should never get anything as unintuitive as this: from __future__ import division 4/10 + 2/10 == 6/10 False -- http://mail.python.org/mailman/listinfo/python-list
Re: How to generate pdf file from an html page??
On Dec 16, 2007 7:26 PM, Zentrader [EMAIL PROTECTED] wrote: Sorry, I read that backwards. I do it the opposite of you. Anyway a google for html to pdf python turns up a lot of hits. Again, no reason to reinvent the wheel. -- http://mail.python.org/mailman/listinfo/python-list Like Zentrader said, theres no reason to reinvent the wheel. An HTML to PDF converter is no trivial task. You would essentially have to implement an HTML layout engine that outputs PDF files. Not only does that mean you would have to programatically produce a PDF file, but it means you would have to parse and correctly render HTML and CSS according to accepted web standards, the W3C's specifications. This has proved difficult to do and get right in practice, as is evident from the browser compatibility issues that continue to plague the web. Theres a package called Prince that's supposed to do an excellent job. Check it out: http://www.princexml.com/ Its layout engine surpasses some browsers in terms of compatibility with web standards. I don't think its free for commercial use, though, so this might depend on what exactly you're trying to do. An alternative idea it to wait for Firefox 3 to come out. If I'm not mistaken, it will feature a new version of the Gecko layout engine which will use Cairo for all its rendering. Coincidently, Cairo can be made to output PDF files. So, you may be able to hack something together. -- nasser -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE question
On Dec 16, 11:47 am, [EMAIL PROTECTED] wrote: I'm using IDLE for my Python programming. I can't seem to solve one issue though. Whenever I try to indent a region of code, I simply select it and hit the tab key, as I usually do in most editors, like GEdit or Geany on Linux, for instance, and it works fine. But, if I try to unindent a region of code, which i would do by pressing Shift- Tab in other editors, it just won't work, and I can't find any combination that will. Anybody know if this operation is possible at all with IDLE, and if it is, what's the combination of keys? Thanx. Rock Dealt just recently myself with this issue. You don't say which platform, and honestly I've not been doing Python long enough to know what diffs may be in IDLE between platforms. I'm running on XP. In the IDLE shell, I chose Options/Configure IDLE. This brings up the configure dialog. Choose the Keys tab. Scroll the Action - Key(s) list until you find dedent-region. I'm not sure what the default keystroke is, seem to recall something like CTRL-6 but I could be totally wrong with that. Anyhow, when you find that entry, you can see what keystroke is currently assigned to that function. You can also Use the Get New Keys for Selection button to change the key sequence. I successfully changed it to shift tab. When you make the change, it will require that you name your new custom key set. Don't remember the whole process, but hopefully this is enough to get you the functionality you want under the familure key sequence. Jim -- http://mail.python.org/mailman/listinfo/python-list
Re: How to generate pdf file from an html page??
Just some thoughts to get you started: You may not get any responses because you weren't specific enough about what you want to do. Since you are asking about doing this via Python, it seems you want to automate something which can be done from a menu option in various Web browsers (use the print feature and print to PDF). You could, of course, download the files (as with the command-line Web client, wget) and then convert html to PDF using various tools. Of course, this gives you a different result--of course--because you would be using a different HTML rendering engine. So you have to ask yourself: Is your goal to have a page that looks exactly like it looks in Firefox? or in IE? or Safari? Or are you only concerned that you have the words of the document? Hi everyone, I am trying to generate a PDF printable format file from an html page. Is there a way to do this using python. If yes then which library and functions are required and if no then reasons why it cant be done. Thank you All -- Shane Geiger IT Director National Council on Economic Education [EMAIL PROTECTED] | 402-438-8958 | http://www.ncee.net Leading the Campaign for Economic and Financial Literacy -- http://mail.python.org/mailman/listinfo/python-list
Re: Python implementation of include
Gabriel Genellina wrote: En Thu, 13 Dec 2007 19:53:49 -0300, [EMAIL PROTECTED] escribió: As I understand it, import myFile and include myFile.py are not quite the same. -- for import to work myFile.py must be in the same directory as the code that calls it accessible through PYTHONPATH, whereas include ../somedirectory/myFile.py works in Karrigell, even though it is not accessible through PYTHONPATH. -- if imported, the print statement myFile.py would only run the first time through unless reload(myFile) is executed in the proper place. execfile(../somedirectory/myFile.py) does not have those problems. place your code within the module into a function, then in the calling file just include the module using include myFile, to get at the code you want to use, simply call the function as myFile.myFunction(). (obviously, drop the quotes and use the names you made for the module and function...) -- http://mail.python.org/mailman/listinfo/python-list
MySQLdb syntax issues - HELP
Im very new to SQL in general, let alone coding it into python. I can interact with a MySQL database just fine for the most part, but im running into some problems here... This is the function in my script that keeps raising errors: - def NewChar(): NewChar() - Call this function to begin new character generation. At this time it is the only function you need to call from the NewCharacter module. It takes no arguments. CharAccount = NewAccount() CharName = raw_input(Enter New Characters Name: \n) CharGender = NewGender() CharJob = NewJob() CharLevel = 1 Attributes = GetAtt() ###--- imports the attributes to be added to character info Strength = Attributes[0] Dexterity = Attributes[1] Inteligence = Attributes[2] Charm = Attributes[3] Luck = Attributes[4] ###--- This will print the results to a script that will be used to store ###--- and retrieve character data for use in the game. It will eventually ###--- be phased out by a database or encrypted file and calling scripts so ###--- it wont be accessable by the user. #AppendChar = '\n[' + CharName + ', ' + CharGender + ', ' + CharJob + ', ' + CharLevel + ', ' + Strength + ', ' + Dexterity + ', ' + Inteligence + ', ' + Charm + ', ' + Luck + ']' #CharSheet = Character.hro #CharOutput = open(CharSheet, 'a', 5000) #CharOutput.writelines(AppendChar) #CharOutput.close() ###--- MySQL implementation of the new character save. conn = MySQLdb.connect(host = 'localhost', user = 'hero', passwd = 'password', db = 'hero') cursor = conn.cursor() cursor.execute( CREATE TABLE %s ( name CHAR(40), gender CHAR(40), job CHAR(40), levelTEXT, str TEXT, dex TEXT, intelTEXT, cha TEXT, luc TEXT ) % CharAccount) CharInfo = (CharAccount, CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck) cursor.execute( INSERT INTO %s (name, gender, job, level, str, dex, intel, cha, luc) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s) , (CharAccount, CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck)) cursor.execute(SELECT name, job FROM %s % CharAccount) while (1): row = cursor.fetchone() if row == None: break print \n \n \n You just created: %s \n Job class is: %s % (row[0], row[1]) cursor.close() conn.commit() conn.close() print \n \n \n Your character is made! MakeAgain = raw_input(\n \n \n Would you like to make another character while we are at it? (y, n): \n) MakeAgain = MakeAgain.lower() MakeAgain = MakeAgain[0] if MakeAgain == y: NewChar() else: return --- The part that keeps getting me errors is: --- cursor.execute( INSERT INTO %s (name, gender, job, level, str, dex, intel, cha, luc) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s) , (CharAccount, CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck)) --- i have tried various ways to do this string insertion, and i keep getting errors. it seems that MySQLdb doesnt like me assigning a string to the table name if im going to assign more to values... I have reworked the last line so many times its pathetic and have seen about 3 or 4 different errors, but they are almost all being raised by the same functions within the MySQLdb code. All variables i am attempting to assign are in string form and have worked in a test script i made that does everything the same except substituting the strings within my query. Ive been stuck on this all week and have read numerous tutorials, the DB-API specification sheet, the MySQL manual, the MySQLdb documentation, and a few books... none of which seem to adress my problem since they are all only assigning variables to the table name OR the values of the query, not both. Please help me figure this out. -- http://mail.python.org/mailman/listinfo/python-list
Re: MySQLdb syntax issues - HELP
Luke a écrit : Im very new to SQL in general, let alone coding it into python. I can interact with a MySQL database just fine for the most part, but im running into some problems here... (snip) - def NewChar(): NewChar() - Call this function to begin new character generation. At this time it is the only function you need to call from the NewCharacter module. It takes no arguments. CharAccount = NewAccount() (snip) cursor.execute( CREATE TABLE %s ( name CHAR(40), gender CHAR(40), job CHAR(40), levelTEXT, str TEXT, dex TEXT, intelTEXT, cha TEXT, luc TEXT ) % CharAccount) Err... Are you sure you want a new table here ? CharInfo = (CharAccount, CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck) cursor.execute( INSERT INTO %s (name, gender, job, level, str, dex, intel, cha, luc) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s) , (CharAccount, CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck)) (snip) The part that keeps getting me errors is: --- cursor.execute( INSERT INTO %s (name, gender, job, level, str, dex, intel, cha, luc) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s) , (CharAccount, CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck)) --- i have tried various ways to do this string insertion, and i keep getting errors. it seems that MySQLdb doesnt like me assigning a string to the table name if im going to assign more to values... Your problem comes from confusion between Python's string formating system and db-api query arguments system - which sometimes (as here) use the same placeholder mark. What you want here is: sql = INSERT INTO %s (name, gender, job, level, str, dex, intel, cha, luc) VALUES (%%s, %%s, %%s, %%s, %%s, %%s, %%s, %%s, %%s) % CharAccount cursor.execute(sql, (CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck)) -- http://mail.python.org/mailman/listinfo/python-list
Re: MySQLdb syntax issues - HELP
Luke wrote: Im very new to SQL in general, let alone coding it into python. I can interact with a MySQL database just fine for the most part, but im running into some problems here... This is the function in my script that keeps raising errors: - def NewChar(): NewChar() - Call this function to begin new character generation. At this time it is the only function you need to call from the NewCharacter module. It takes no arguments. CharAccount = NewAccount() CharName = raw_input(Enter New Characters Name: \n) CharGender = NewGender() CharJob = NewJob() CharLevel = 1 Attributes = GetAtt() ###--- imports the attributes to be added to character info Strength = Attributes[0] Dexterity = Attributes[1] Inteligence = Attributes[2] Charm = Attributes[3] Luck = Attributes[4] ###--- This will print the results to a script that will be used to store ###--- and retrieve character data for use in the game. It will eventually ###--- be phased out by a database or encrypted file and calling scripts so ###--- it wont be accessable by the user. #AppendChar = '\n[' + CharName + ', ' + CharGender + ', ' + CharJob + ', ' + CharLevel + ', ' + Strength + ', ' + Dexterity + ', ' + Inteligence + ', ' + Charm + ', ' + Luck + ']' #CharSheet = Character.hro #CharOutput = open(CharSheet, 'a', 5000) #CharOutput.writelines(AppendChar) #CharOutput.close() ###--- MySQL implementation of the new character save. conn = MySQLdb.connect(host = 'localhost', user = 'hero', passwd = 'password', db = 'hero') cursor = conn.cursor() cursor.execute( CREATE TABLE %s ( name CHAR(40), gender CHAR(40), job CHAR(40), levelTEXT, str TEXT, dex TEXT, intelTEXT, cha TEXT, luc TEXT ) % CharAccount) CharInfo = (CharAccount, CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck) cursor.execute( INSERT INTO %s (name, gender, job, level, str, dex, intel, cha, luc) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s) , (CharAccount, CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck)) cursor.execute(SELECT name, job FROM %s % CharAccount) while (1): row = cursor.fetchone() if row == None: break print \n \n \n You just created: %s \n Job class is: %s % (row[0], row[1]) cursor.close() conn.commit() conn.close() print \n \n \n Your character is made! MakeAgain = raw_input(\n \n \n Would you like to make another character while we are at it? (y, n): \n) MakeAgain = MakeAgain.lower() MakeAgain = MakeAgain[0] if MakeAgain == y: NewChar() else: return --- The part that keeps getting me errors is: --- cursor.execute( INSERT INTO %s (name, gender, job, level, str, dex, intel, cha, luc) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s) , (CharAccount, CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck)) --- i have tried various ways to do this string insertion, and i keep getting errors. it seems that MySQLdb doesnt like me assigning a string to the table name if im going to assign more to values... I have reworked the last line so many times its pathetic and have seen about 3 or 4 different errors, but they are almost all being raised by the same functions within the MySQLdb code. All variables i am attempting to assign are in string form and have worked in a test script i made that does everything the same except substituting the strings within my query. Ive been stuck on this all week and have read numerous tutorials, the DB-API specification sheet, the MySQL manual, the MySQLdb documentation, and a few books... none of which seem to adress my problem since they are all only assigning variables to the table name OR the values of the query, not both. Please help me figure this out. Luke, It would be most helpful if you assigned the sql to a string, printed the string, executed the string, and posted the error message. sql = INSERT INTO %s (name, gender, job, level, str, dex, intel, cha, luc) VALUES \ (%s, %s, %s, %s, %s, %s, %s, %s, %s) \ % (CharAccount, CharName, CharGender, CharJob, CharLevel, Strength,\ Dexterity, Inteligence, Charm, Luck) print sql=,sql cursor.execute(sql) -then show the error message here wes
Terminate capability ....
Hello, I'm new to Python. I have a small task to do. I need to be able to find a running app (preferrably by name) and kill it. This is for the XP environment. What is best way to do this? Thanks, -- http://mail.python.org/mailman/listinfo/python-list
Re: Terminate capability ....
[EMAIL PROTECTED] a écrit : Hello, I'm new to Python. I have a small task to do. I need to be able to find a running app (preferrably by name) and kill it. This is for the XP environment. What is best way to do this? 1/ search the Windows XP APIs for such a task 2/ found out how you can call these APIs from Python Thanks, You're welcome. -- http://mail.python.org/mailman/listinfo/python-list
Re: MySQLdb syntax issues - HELP
Bruno Desthuilliers wrote: Luke a écrit : (snip) cursor.execute( CREATE TABLE %s ( name CHAR(40), gender CHAR(40), job CHAR(40), levelTEXT, str TEXT, dex TEXT, intelTEXT, cha TEXT, luc TEXT ) % CharAccount) Err... Are you sure you want a new table here ? (snip) yes, thats the easier way i can think of for now since i am so new to SQL, eventually im sure i will put all the characters into one larger table though... but for now i just dont feal like figuring out how to scan the table for the records i need based on name of character... ill save that for later. (unless there is a very easy way to do it that doesnt require re) (snip) The part that keeps getting me errors is: --- cursor.execute( INSERT INTO %s (name, gender, job, level, str, dex, intel, cha, luc) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s) , (CharAccount, CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck)) --- i have tried various ways to do this string insertion, and i keep getting errors. it seems that MySQLdb doesnt like me assigning a string to the table name if im going to assign more to values... Your problem comes from confusion between Python's string formating system and db-api query arguments system - which sometimes (as here) use the same placeholder mark. What you want here is: sql = INSERT INTO %s (name, gender, job, level, str, dex, intel, cha, luc) VALUES (%%s, %%s, %%s, %%s, %%s, %%s, %%s, %%s, %%s) % CharAccount cursor.execute(sql, (CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck)) wow, i was so focused on learning the MySQLdb module i have been overlooking simply escaping my % signs the whole time... nice catch, thanks alot. it works like a charm now. PROBLEM SOLVED, BUT IF YOU WANT TO ADD ANYTHING, FEEL FREE... -- http://mail.python.org/mailman/listinfo/python-list
Re: Terminate capability ....
[EMAIL PROTECTED] schrieb:
Hello,
I'm new to Python. I have a small task to do. I need to be able to
find a running app (preferrably by name) and kill it. This is for the
XP environment. What is best way to do this?
Thanks,
import os
os.system('taskkill /IM explorer.exe')
cheers
Paul
--
http://mail.python.org/mailman/listinfo/python-list
Re: IDLE question
[EMAIL PROTECTED] wrote: I'm using IDLE for my Python programming. I can't seem to solve one issue though. Whenever I try to indent a region of code, I simply select it and hit the tab key, as I usually do in most editors, like GEdit or Geany on Linux, for instance, and it works fine. But, if I try to unindent a region of code, which i would do by pressing Shift- Tab in other editors, it just won't work, and I can't find any combination that will. Anybody know if this operation is possible at all with IDLE, and if it is, what's the combination of keys? On my copy of idle the 'format' menu lists indent region, dedent region and a bunch of similar commands along with their accelerators. -- http://mail.python.org/mailman/listinfo/python-list
Re: why this error?
python.jiang wrote: hello friends, the question had show bellow, any friend can tell me why. thanks. list: def test(): exec import sys a=range(15) b=[13,3] c=filter(lambda x: x not in b,a) return c print test() run result: File a.py, line 2 exec import sys SyntaxError: unqualified exec is not allowed in function 'test' it contains a nested function with free variables I have no reason why you're getting the error, but there is no reason to try to exec an import. Just use import sys Hope that helps. j -- http://mail.python.org/mailman/listinfo/python-list
Re: MySQLdb syntax issues - HELP
On Dec 17, 7:48 am, Luke [EMAIL PROTECTED] wrote: Bruno Desthuilliers wrote: Luke a écrit : (snip) cursor.execute( CREATE TABLE %s ( name CHAR(40), [snip] luc TEXT ) % CharAccount) Err... Are you sure you want a new table here ? (snip) yes, thats the easier way i can think of for now since i am so new to SQL, eventually im sure i will put all the characters into one larger table though... but for now i just dont feal like figuring out how to scan the table for the records i need based on name of character... Have you figured out how to scan a list of table names for the records you need? Where will you keep that list -- in another table? in a file? hard-coded in your scripts? ill save that for later. (unless there is a very easy way to do it that doesnt require re) If you have one table (as you should) called (say) character, with the primary key column called (say) characcount, you can find one exact match like this: SELECT * FROM character WHERE characcount = 'Ronin88' or do a wild-card search like this: SELECT * FROM character WHERE characcount LIKE 'Ron%' [I'm presuming that's what you mean by your reference to 're'] HTH, John -- http://mail.python.org/mailman/listinfo/python-list
Re: state machine and a global variable
[EMAIL PROTECTED] wrote: Basically, I agree that often the local state is much more useful. It just seems to me that for some application it's an overkill. Like say, for Turtle [1] (no jokes, please :) or PostScript [2]. Sounds also a bit similar to what happens under the hood in Open GL and some other systems which revolve around display lists. The approach generally taken there is to recognise that you often have a current context which is being operated on. A basic version of this might look like this: file: statemachine_user.py #!/usr/bin/python from statemachine import * context = statemachine() context2 = statemachine() set_context(context) set_state(3) print get_state() set_context(context2) set_state(1) print get_state() set_context(context) print get_state() file: statemachine.py #!/usr/bin/python class statemachine(object): def __init__(self): self.state = None def set_state(self, value): self.state = value def get_state(self): return self.state context = statemachine() def set_context(somecontext): global context context = somecontext def set_state(value): context.set_state(value) def get_state(): return context.get_state() A more interesting example which probably relates closer to your example, and also can be quite useful for interpretting little languages is where the states that get stored are matrices representing transforms and are used to put objects into a 3D space. You might in that circumstance want to use your a statemachine more like this: (this code is untested) class statemachine(object): default = None def __init__(self, **argd): self.__dict__.update(**argd) self.state = self.default def set_state(self, value): self.state = value def get_state(self): return self.state context = [ statemachine() ] # default context def push_context(somecontext): global context context.append( somecontext ) def pop_context(somecontext): global context return context.pop( -1 ) def set_state(value): context[-1].set_state(value) def get_state(): return context[-1].get_state() def get_allstates(): return [ x.get_state() for x in context ] This isn't really quite what the do, but gives a different possible perspective. Michael. -- http://yeoldeclue.com/blog http://kamaelia.sourceforge.net/Developers/ -- http://mail.python.org/mailman/listinfo/python-list
Re: MySQLdb syntax issues - HELP
On 16 dic, 17:48, Luke [EMAIL PROTECTED] wrote: Bruno Desthuilliers wrote: Err... Are you sure you want a new table here ? yes, thats the easier way i can think of for now since i am so new to SQL, eventually im sure i will put all the characters into one larger table though... but for now i just dont feal like figuring out how to scan the table for the records i need based on name of character... ill save that for later. (unless there is a very easy way to do it that doesnt require re) re No. Just plain SQL, see below. As you wouldn't -in general- define a new class for each character, the same happens for the tables: you wouldn't create a new table for each character, as they all share the same set of attributes; just insert a new *row* of data into the table. BTW, it's similar to what you appear to be doing previously: appending a new row to Character.hro file, conceptually it's the same thing. Table names and column names are usually known when you define the application and remain fixed. And they can't be provided as parameters in the execute method: that's why Bruno split it in two steps, building a sql statement first (with the table name in it) and then executing it with the remaining parameters. So, I would create the table ONCE, with name Character, and a new column Account. To insert a new character: sql = INSERT INTO Character (account, name, gender, job, level, str, dex, intel, cha, luc) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s) cursor.execute(sql, (CharAccount, CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck)) Retrieving a certain character is not harder: sql = SELECT name, gender, job, level, str, dex, intel, cha, luc FROM Character WHERE account = %s cursor.execute(sql, (CharAccount,)) CharName, CharGender, CharJob, CharLevel, Strength, Dexterity, Inteligence, Charm, Luck = cursor.fetchone() -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: why this error?
On Dec 17, 8:18 am, Joshua Kugler [EMAIL PROTECTED] wrote: python.jiang wrote: hello friends, the question had show bellow, any friend can tell me why. thanks. list: def test(): exec import sys a=range(15) b=[13,3] c=filter(lambda x: x not in b,a) return c print test() run result: File a.py, line 2 exec import sys SyntaxError: unqualified exec is not allowed in function 'test' it contains a nested function with free variables I have no reason why you're getting the error, but there is no reason to try to exec an import. Just use import sys or, given that you [Jiang the OP] are not using the sys module, omit the whole statement! The 'unqualified' exec means you have not specified a context by using the 'in' keyword; as the manual says the code is executed in the current scope. The 'nested function' is the lambda. The 'free variable' is b ... if you do c = filter(lambda x: x not in [13, 3], a) it works. The short story is that Python is not so wildly dynamic that you can mix all of the above. Is there something practical that you are trying to achieve that we could help you with? -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggested Reading
On Dec 16, 1:47 am, Thin Myrna [EMAIL PROTECTED] wrote: Benoit wrote: I got myself into programming late in the summer and have dabbled in python for the most part in that time, recently beginning work on a music player. In January, I start my minor in Information Technology. I'd like to get ahead a bit, however, and over the break would like to do some reading. I seek your recommendations in the field of database design basics and network programming, with a bias towards texts which specifically address Python. By network programming, I mean fundamental understanding of sockets, TCP/UDP, right up to HTTP serving, etc. Thanks ahead of time. Steve Holden's Python Web Programming might be what you are looking for. It covers all the topics needed to deal with sockets, databases, up to building complete web apps. One of my books I'd never give away. HTH Thin urls http://docs.python.org/lib/module-socket.html http://www.amk.ca/python/howto/sockets/ http://www.devshed.com/c/a/Python/Sockets-in-Python/ books http://www.amazon.com/Foundations-Python-Network-Programming/dp/1590593715 you might also want to read up on twisted, (just for the heck of it) http://twistedmatrix.com/trac/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Allingn controls wxPython
On Dec 15, 2:14 pm, SMALLp [EMAIL PROTECTED] wrote: Hy. I need help. I'm using BoxSizer and i put TextCtrl and StaticText next to each other and they gor alligned by top of TextCtrl and it looks terrible. How can i make thm to be alligned by center of each controll. Thnaks! A shortcut flag is to just use wx.CENTER. You might find this wiki entry useful: http://wiki.wxpython.org/UsingSizers This article may be fruitful as well: http://www.devshed.com/c/a/Python/A-Close-Look-at-wxPython-Controls/ I personally use the wxPython in Action book by Dunn quite a bit. It's got lots of information, although it's not well organized. Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: MySQLdb syntax issues - HELP
Bruno Desthuilliers wrote: Luke a écrit : Im very new to SQL in general, let alone coding it into python. I can interact with a MySQL database just fine for the most part, but im running into some problems here... (snip) OK. Bruno has pointed out why you're having trouble with the syntax, but that's not the real problem. You probably don't want a separate MySQL database for each account, which is what you're doing. You only need one database for multiple accounts. The account name can be a field. You can look up things by any field, which is the whole point of having a database. (The database looks up much faster if you specify that some fields are INDEX fields. But that can come later.) John Nagle -- http://mail.python.org/mailman/listinfo/python-list
RE:Windows XP unicode and escape sequences
Thank you John and Tim.
With your help I found that the XP console code page is set up for 'cp437' and
with a little bit of browsing I found that 869 is the code page for Modern
Greek. After changing it to 869 that did the trick! Thanks very much for this
advice.
This brings up another question. If I run some Python code that starts off
with 'os.system('cp869')' so it will change to the correct code page, then when
it starts printing the Greek characters it breaks. But run the same Python
code again and it works fine. Is there another way to do this so I can change
over to the 869 code page and continue on with the Greek letters printing
correctly?
Thanks Tim for the info about the CONFIG.NT file as well as the curses-like
info. I'll continue to research these.
Thanks again!
Jay
CONFIG.NT only affects 16-bit programs running in the NTVDM (the Virtual
DOS Machine).
32-bit console apps (which Python is) simply cannot use ANSI escape
sequences. You have to use the Win32 APIs to do color. There are
curses-like libraries available for Python. Or:
http://www.effbot.org/zone/console-handbook.htm
--
Tim Roberts, timr at probo.com
Providenza Boekelheide, Inc.
--
http://mail.python.org/mailman/listinfo/python-list
int vs long
The readFile function from the win32 package aparently really expect an integer : def inWaiting(self): Returns the number of bytes waiting to be read flags, comstat = ClearCommError(self.__handle) return comstat.cbInQue ReadFile(h, s.inWaiting()) My code crashes because inWaiting returns a long, not an int Why is that different on my machine and my collegues ? Have I or he installed a wrong version of a package? CPython 2.5. Was not expecting int-long type problems in excactly python language. Is that because we are navigating so close to the win32 api that the types are more strictly enforced ? Thx in advance Troels -- http://mail.python.org/mailman/listinfo/python-list
Re: Clearing a DOS terminal in a script
Stephen_B wrote:
On Dec 13, 11:21 am, Chris Mellon [EMAIL PROTECTED] wrote:
It opens clear with it's own virtual terminal and clears that
instead.
Even when I launch the script from a cmd shell with python
myscript.py?
There's an ANSI control code you can use to reset the screen, try printing
that.
I googled Esc[2J as an ascii sequence that it is supposed to clear
the screen. How do I send that?
Stephen
Normally you would do:
import sys
sys.stdout.write(chr(27)+'[2J')
sys.stdout.flush()
Unfortunately that doesn't clear the screen because the ANSI module isn't
loaded
by default. Use os.system('cls') as mentioned instead.
-Larry
--
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Re: looking for gui for python code
[EMAIL PROTECTED] wrote: hi i have written some python scripts which take command line arguments and do some job. i would like to make it into a .exe using py2exe and distribute it with innosetup.. befor that i would like to add some GUI support..i mean select some values using a folder explorer etc..which would be a good gui builder for this? i have heard about guibuilder from http://spectcl.sourceforge.net/ or is it better to use tkinter (i have little experience with gui designing) can someone give a suggestion? TIA dn I think wxWindows works extremely well but the learning curve is quite steep. The upside is that it is cross-platform and there is virtually nothing you can't write using wxPython/Windows. BTW-They hae an excellent newsgroup at: gmane.comp.python.wxpython -Larry -- http://mail.python.org/mailman/listinfo/python-list
List problem
I wish to create a list of empty lists and then put something in one of the empty lists. Below is what I tried, but instead of appending 1 to a[2] it was appended to all the sub-lists in a. What am I doing wrong? a = 6*[[]] a [[], [], [], [], [], []] a[2].append(1) a [[1], [1], [1], [1], [1], [1]] -- http://mail.python.org/mailman/listinfo/python-list
Re: Windows XP unicode and escape sequences
On Dec 16, 5:28 pm, [EMAIL PROTECTED] wrote:
Thank you John and Tim.
With your help I found that the XP console code page is set up for 'cp437'
and with a little bit of browsing I found that 869 is the code page for
Modern Greek. After changing it to 869 that did the trick! Thanks very much
for this advice.
This brings up another question. If I run some Python code that starts off
with 'os.system('cp869')' so it will change to the correct code page, then
when it starts printing the Greek characters it breaks. But run the same
Python code again and it works fine. Is there another way to do this so I
can change over to the 869 code page and continue on with the Greek letters
printing correctly?
Thanks Tim for the info about the CONFIG.NT file as well as the curses-like
info. I'll continue to research these.
Thanks again!
Jay
CONFIG.NT only affects 16-bit programs running in the NTVDM (the Virtual
DOS Machine).
32-bit console apps (which Python is) simply cannot use ANSI escape
sequences. You have to use the Win32 APIs to do color. There are
curses-like libraries available for Python. Or:
http://www.effbot.org/zone/console-handbook.htm
--
Tim Roberts, timr at probo.com
Providenza Boekelheide, Inc.
Try using the unicode switch ( cmd.exe /u ), rather than trying to set
the codepage. See here:
http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/cmd.mspx?mfr=true
Regards,
Jordan
--
http://mail.python.org/mailman/listinfo/python-list
Re: List problem
Alan Bromborsky wrote: I wish to create a list of empty lists and then put something in one of the empty lists. Below is what I tried, but instead of appending 1 to a[2] it was appended to all the sub-lists in a. What am I doing wrong? a = 6*[[]] a [[], [], [], [], [], []] a[2].append(1) a [[1], [1], [1], [1], [1], [1]] What you've done is equivalent to x = [] a = [x, x, x, x, x, x] del x An idiom for what you want is a = [[] for y in xrange (6)] which will populate a with 6 distinct empty lists. Cheers, Mel. -- http://mail.python.org/mailman/listinfo/python-list
Re: in-client web server
David Montgomery wrote: Hi, I am working on a thick-client application that serves a lot of content as locally generated and modified web pages. I'm beginning to look at serving (and updating, via AJAX) these pages from a web server running within the client (mostly to provide a more natural and powerful way of interacting with the browser control). For a first cut I imagine just starting a web server within the client and serving the pages from localhost:someport. I have a couple questions for anyone with experience with this sort of architecture: * First, are there any existing open source libraries that exemplify this approach? I have a vague recollection that TurboGears started out based on a project with this kind of architecture, but I haven't been able to find anything so far. * Second, are there any gotchas you would point out? In particular I'm wondering if even this localhost connection will be a problem with many users' firewalls. In case it matters, the application is being developed in python 2.5.x with wxPython 2.8.x, aimed first at a Windows platform, but intended to be portable to Linux and Mac ASAP. Thanks for any pointers, David If I understand you correctly, I did something like this recently. I wanted to monitor a long running process via web browser. I used twisted to create simplehttpserver and ran the long running process in another process. Periodically I would update information in a python dictionary that was visible to the httpserver to generate a proper HTML page by merging a template and the progress data upon a request from web browser. Does this sound at all like what you are looking for? No firewall issues and I even tunneled ports securely over ssh and it worked flawlessly. -Larry -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE question
On Dec 16, 4:47 pm, [EMAIL PROTECTED] wrote: I'm using IDLE for my Python programming. I can't seem to solve one issue though. Whenever I try to indent a region of code, I simply select it and hit the tab key, as I usually do in most editors, like GEdit or Geany on Linux, for instance, and it works fine. But, if I try to unindent a region of code, which i would do by pressing Shift- Tab in other editors, it just won't work, and I can't find any combination that will. Anybody know if this operation is possible at all with IDLE, and if it is, what's the combination of keys? In IDLE 1.2.1 (Windows) the keys are ctrl-] or tab for indent and ctrl- [ for dedent. You can change them in Options-Configure IDLE...-Keys. -- http://mail.python.org/mailman/listinfo/python-list
[OT] Fractions on musical notation
On 16 dic, 06:40, Lie [EMAIL PROTECTED] wrote: [btw, off topic, in music, isn't 1/4 and 2/8 different? I'm not very keen of music though, so correct me if I'm wrong.] As a time signature 1/4 has no sense, but 3/4 and 6/8 are different things. In the standard musical notation both numbers are written one above the other, and no division line is used. Note that they just *look* like a fraction when written in text form, like here, because it's not easy to write one above the other. 3/4 is read as three by four, not three quarters -at least in my country- so there is even less confussion. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: why this error?
Joshua Kugler wrote: python.jiang wrote: hello friends, the question had show bellow, any friend can tell me why. thanks. list: def test(): exec import sys a=range(15) b=[13,3] c=filter(lambda x: x not in b,a) return c print test() run result: File a.py, line 2 exec import sys SyntaxError: unqualified exec is not allowed in function 'test' it contains a nested function with free variables I have no reason why you're getting the error, but there is no reason to try to exec an import. Just use import sys Hope that helps. j Don't exec import sys just do import sys. Also. a=range(15) b=[13,3] c=filter(lambda x: x not in b,a) is just: c=[x for x in xrange(15) if x not in [13,3]] IMHO this is much easier to read. -Larry -- http://mail.python.org/mailman/listinfo/python-list
Donate to the Python Software Foundation!
Hi, Please consider donating to the Python Software Foundation (PSF) this year in your year-end charitable giving. The PSF is the non-profit that holds and protects the intellectual property rights behind Python, keeping it free and open for all to use. We also provide the financial backing that makes PyCon possible, donate to other Python conferences around the world, and fund grants and special projects in the Python community. For general information about the PSF, please see our pages on the Python website: http://www.python.org/psf/ Donations from individuals are tax deductible in the US and may be tax deductible in other countries, or as a business expense. We take credit cards, checks, wire transfers, and PayPal: http://www.python.org/psf/donations/ Businesses invested in Python can also consider becoming a sponsor member of the PSF: http://www.python.org/psf/sponsorship/ Or become a sponsor of PyCon 2008, a great way to gain exposure for your business or find talented Python programmers to hire: http://us.pycon.org/2008/sponsors/ If you have any questions, please email me directly. Thanks, and Happy Holidays! -- Stephan Deibel Chairman of the Board Python Software Foundation http://python.org/psf -- http://mail.python.org/mailman/listinfo/python-list
Re: [OT] Fractions on musical notation
Gabriel Genellina wrote: On 16 dic, 06:40, Lie [EMAIL PROTECTED] wrote: [btw, off topic, in music, isn't 1/4 and 2/8 different? I'm not very keen of music though, so correct me if I'm wrong.] As a time signature 1/4 has no sense Actually, I'm playing a show right now that has a one beat vamp. It's a single repeated measure in 1/4 time. To addres the real point, though, I don't think of a time signature as a rational number, although it correctly reflects what portion of a whole note can be found within a measure. I consider it to have two separate pieces of information: the length of the beat and the number of those beats per bar. When I've written code to represent music I have used rationals to represent when something occurs, but a different structure to represent time signatures. -- Brian -- http://mail.python.org/mailman/listinfo/python-list
Immutable Geometry Types
Hi,
I am learning python, having learnt most of my object orientation with
java, and decided to port some of my geometry classes over. I haven't
used immutability in python before, so thought this would be an
interesting chance to learn.
I am looking for feedback on any ways in which I might have left
variables unprotected, and ways in which I am not being pythonic.
Cheers!
code class = python
#!/usr/bin/env python
#
# geometry.py
#
# Peter Braden http://PeterBraden.co.uk
#
# Released under the GPLv2 (http://www.gnu.org/licenses/
gpl-2.0.txt).
#
# Disclaimer:
#
# All following code is provided as is. Peter Braden hereby
disclaims
# solely to the extent permitted by law all express, implied and
statutory
# warranties, conditions and terms including, without limitation,
those
# regarding the security, reliability, timeliness, and performance of
the code.
#
#
import math
class Angle (object):
The Angle class represents angles; the inclination to each other,
in a plane,
of two lines which meet each other, and do not lie straight with
respect to
each other.
* By default angles are measured in radians.
* Angles are immutable
def __init__(self, val, type = 'rad'):
Create a new angle.
* To specify type of value use either type = deg or type
=rad
* default is radians
if type == 'rad':
super(Angle, self).__setattr__('_value', val)
else:
super(Angle, self).__setattr__('_value',
math.radians(val))
def __eq__(self, other):
Test equality
if isinstance(other, Angle):
return self._value == other._value
return NotImplemented
def __ne__(self, other):
Test Inequality
result = self.__eq__(other)
if result is NotImplemented:
return result
return not result
def __str__(self):
Create Readable String
return %s (%s degrees) % (str(self._value),
str(self.degrees))
def __repr__(self):
Serialise data
return Angle(%s) % self._value
def __setattr__(self, name, value):
Suppress setting of data - Angle is immutable
self._immutableError()
def __delattr__(self, name):
Suppress deleting of data - Angle is immutable
self._immutableError()
def __add__(self, other):
return self + other
if isinstance(other, Angle):
return Angle(self._value + other._value)
return NotImplemented
def __sub__(self, other):
return self - other
if isinstance(other, Angle):
return Angle(self._value - other._value)
return NotImplemented
def __mul__(self, other):
return self * other
if isinstance(other, Angle):
return Angle(self._value * other._value)
return NotImplemented
def __div__(self, other):
return self / other
if isinstance(other, Angle):
return Angle(self._value / other._value)
return NotImplemented
def __lt__(self, other):
return self other
if isinstance(other, Angle):
return self._value other._value
return NotImplemented
def __gt__(self, other):
return self other
if isinstance(other, Angle):
return self._value other._value
return NotImplemented
def __le__(self, other):
return self = other
if isinstance(other, Angle):
return self._value = other._value
return NotImplemented
def __ge__(self, other):
return self = other
if isinstance(other, Angle):
return self._value = other._value
return NotImplemented
def fromCos(self, c):
return angle with specified cos
return Angle(math.acos(c))
fromCos = classmethod(fromCos)
def fromSin(self, s):
return angle with specified sin
return Angle(math.asin(c))
fromSin = classmethod(fromSin)
def fromTan(self, t):
return angle with specified tan
return Angle(math.atan(c))
fromTan = classmethod(fromTan)
def _immutableError(self):
Throw error about angles immutability
raise TypeError(Angle is immutable - cannot alter variables)
radians = property(lambda self: self._value, lambda x:
self._immutableError())
degrees = property(lambda self: math.degrees(self._value), lambda
x: self._immutableError())
cos = property(lambda self: math.cos(self._value), lambda x:
self._immutableError())
sin = property(lambda self: math.sin(self._value), lambda x:
self._immutableError())
Re: [OT] Fractions on musical notation
Since the US, at least, uses whole/half/quarter/eighth/sixteenth... notes, three-quarter and six-eight time falls out... I don't think this is technically true, but I've never been able to tell the difference. -- http://mail.python.org/mailman/listinfo/python-list
Re: Windows XP unicode and escape sequences
[EMAIL PROTECTED] wrote:
This brings up another question. If I run some Python code that starts
off with 'os.system('cp869')' so it will change to the correct code page,
then when it starts printing the Greek characters it breaks. But run
the same Python code again and it works fine.
That's probably because the encoding of stdin, stdout, and stderr is set
according to the code page of the console they're connected to (if any)
when Python starts.
Is there another way to do this so I can change over to the 869 code
page and continue on with the Greek letters printing correctly?
Unfortunately, you can't easily change the encoding of file object after
it's been created. It's probably simpler convert Unicode strings to cp869
before printing them instead of having Python do it automatically for you.
Ross Ridge
--
l/ // Ross Ridge -- The Great HTMU
[oo][oo] [EMAIL PROTECTED]
-()-/()/ http://www.csclub.uwaterloo.ca/~rridge/
db //
--
http://mail.python.org/mailman/listinfo/python-list
Python dummy interpreter
Hi all, I remember a tool which (basically) creates a directory somewhere in the user's home directory and puts a copy (or perhaps link to) the python interpreter, adding that directory to the search path. In this way, it is possible for a user without root permissions to install additional packages using easy_install (i.e. python setup.py install). I can't find it now that I go looking again. Can anyone give me a pointer on this? Thanks, -Tennessee -- http://mail.python.org/mailman/listinfo/python-list
Re: Python dummy interpreter
On Dec 17, 2:25 pm, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Never mind, I found it. Virtualpython, docs available under easy install. -T Hi all, I remember a tool which (basically) creates a directory somewhere in the user's home directory and puts a copy (or perhaps link to) the python interpreter, adding that directory to the search path. In this way, it is possible for a user without root permissions to install additional packages using easy_install (i.e. python setup.py install). I can't find it now that I go looking again. Can anyone give me a pointer on this? Thanks, -Tennessee -- http://mail.python.org/mailman/listinfo/python-list
Re: Immutable Geometry Types
En Sun, 16 Dec 2007 23:13:47 -0300, [EMAIL PROTECTED]
[EMAIL PROTECTED] escribi�:
Hi,
I am learning python, having learnt most of my object orientation with
java, and decided to port some of my geometry classes over. I haven't
used immutability in python before, so thought this would be an
interesting chance to learn.
I am looking for feedback on any ways in which I might have left
variables unprotected, and ways in which I am not being pythonic.
Immutable classes usually implement __new__ and leave __init__
unimplemented:
def __new__(cls, val, measure='rad'):
# using 'type' as a name shadows the builtin type
instance = super(Angle, self).__new__()
if measure == 'rad': pass
elif measure == 'deg': value = math.radians(value)
else: raise ValueError, unknown Angle measure: %r % measure
instance._value = value
return instance
For the various comparison operators, since this class plays well with
ordering, it's easier to implement __cmp__ and make all operators refer to
it:
def __cmp__(self, other):
if isinstance(other, Angle):
return cmp(self._value, other._value)
raise NotImplementedError
__eq__ = lambda self,other: self.__cmp__(other)==0
__ne__ = lambda self,other: self.__cmp__(other)!=0
__lt__ = lambda self,other: self.__cmp__(other)0
__ge__ = lambda self,other: self.__cmp__(other)=0
__gt__ = lambda self,other: self.__cmp__(other)0
__le__ = lambda self,other: self.__cmp__(other)=0
def __setattr__(self, name, value):
Suppress setting of data - Angle is immutable
self._immutableError()
Why? This class contains a single attribute, value, and we could make it
immutable. But why restrict the possibility to add *other* attributes?
(There is __slots__ too, but I would not recommend it at this stage)
def __delattr__(self, name):
Same as above.
def __mul__(self, other):
def __div__(self, other):
(I've never seen those operations on angles)
def fromCos(self, c):
return angle with specified cos
return Angle(math.acos(c))
fromCos = classmethod(fromCos)
I prefer to write
@classmethod
def fromCos(self, c):
radians = property(lambda self: self._value, lambda x:
self._immutableError())
degrees = property(lambda self: math.degrees(self._value), lambda
x: self._immutableError())
cos = property(lambda self: math.cos(self._value), lambda x:
self._immutableError())
sin = property(lambda self: math.sin(self._value), lambda x:
self._immutableError())
tan = property(lambda self: math.tan(self._value), lambda x:
self._immutableError())
You don't have to write them that way. Just omit the property setter, and
it will be read-only.
tan = property(lambda self: math.tan(self._value))
Or:
@property
def tan(self):
return math.tan(self.value)
def withinRange(self, angle, range):
angle is within range of self
return (self._value angle._value + range) and (self._value
angle._value - range)
I think this is more readable:
return angle.value-range self.value angle.value+range
class Point2D (object):
Same as above, replace __init__ by __new__. You may inherit from tuple
instead, and get some basic methods already implemented.
length = property(lambda self: return math.sqrt(self.x*self.x +
self.y*self.y), lambda x: self._immutableError())
Using math.hypot is safer in some circunstances.
def normalise(self):
return Point2D(self.x/self.length, self.y/self.length);
def translate(self, other) {
return self + other
}
I'd use normalised, translated, etc. because they return a *new*
object, instead of modifying self.
(You forgot to remove some braces, I presume...)
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
strptime() in _strptime.py vs lib-dynload/time.so
It looks like there are two implementation of strptime() (why?) and the one that's used by default is the Python version in _strptime.py Unfortunately, it's pretty slow and takes up a big chunk of my code's execution time. Is there a way to use the C version instead (is there a C version in time.so?) 6199597 function calls (6199433 primitive calls) in 45.820 CPU seconds Ordered by: internal time List reduced from 183 to 10 due to restriction 10 ncalls tottime percall cumtime percall filename:lineno(function) 577656.0200.000 12.9700.000 /usr/lib64/python2.4/ _strptime.py:273(strptime) ... -- http://mail.python.org/mailman/listinfo/python-list
Re: strptime() in _strptime.py vs lib-dynload/time.so
On Dec 16, 8:47 pm, [EMAIL PROTECTED] wrote: ncalls tottime percall cumtime percall filename:lineno(function) 577656.0200.000 12.9700.000 /usr/lib64/python2.4/_strptime.py:273(strptime) ... actually, the C-version of strptime() is also getting called: 577650.9600.000 13.9400.000 :0(strptime) that's pretty confusing. Does the Python version call the C-version (or the other way around)? Thanks, igor -- http://mail.python.org/mailman/listinfo/python-list
Re: int vs long
En Sun, 16 Dec 2007 20:28:02 -0300, Troels Thomsen nej tak...@bag.python.org escribi�: The readFile function from the win32 package aparently really expect an integer : def inWaiting(self): Returns the number of bytes waiting to be read flags, comstat = ClearCommError(self.__handle) return comstat.cbInQue ReadFile(h, s.inWaiting()) My code crashes because inWaiting returns a long, not an int That's very strange. The cbInQue field is a DWORD in C, seen as an int in Python. How do you know it returns a long? Why is that different on my machine and my collegues ? Have I or he installed a wrong version of a package? CPython 2.5. And pywin32 build 210, I presume. Was not expecting int-long type problems in excactly python language. Is that because we are navigating so close to the win32 api that the types are more strictly enforced ? Somewhat. At the API level, function arguments have to be converted to native C types, like ReadFile expecting a DWORD. Any number greater than 2**32 won't fit, but I can't think how such thing could happen looking at those few posted code lines. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Immutable Geometry Types
On Sun, 16 Dec 2007 18:13:47 -0800, [EMAIL PROTECTED] wrote:
I am learning python, having learnt most of my object orientation with
java, and decided to port some of my geometry classes over. I haven't
used immutability in python before, so thought this would be an
interesting chance to learn.
I am looking for feedback on any ways in which I might have left
variables unprotected, and ways in which I am not being pythonic.
I'm not sure it's pythonic to worry too much about enforcing the
immutability; and disabling setattr makes the internal attribute setting
a pain in the arse, for little real gain.
class Angle (object):
I'm not sure about this, but you might want to make Angle a subclass of
float ; it would save you re-implementing the comparison operators
(although you'ld still have to re-implement the arithmetic operators to
get them to return an Angle instance rather than a float).
def __init__(self, val, type = 'rad'):
if type == 'rad':
super(Angle, self).__setattr__('_value', val)
else:
super(Angle, self).__setattr__('_value',
math.radians(val))
You might want to normalize the angle to between 0 and 2*pi here (though
you might not, depending on exactly what you want to represent).
Assuming that the user meant degrees in the else branch strikes me as a
mistake; what if they mis-typed rad as rsd or something? Better to
explicitly check, and raise an exception if the value isn't one of 'rad'
or 'deg'. Another thing you might want to consider is using keyword
arguments, rather than a string. Like:
def __init__(self, radians=None, degrees=None):
if radians is not None:
self._value = radians
elif degrees is not None:
self._value = math.radians(degrees)
else:
raise TypeError(Angle creation must specify \
keyword argument 'radians' or 'degrees')
Used like:
a = Angle(math.pi) # Uses radians by default
a = Angle(radians=2*math.pi) # Or you can specify it explicitly
a = Angle(degrees=180) # Or specify degrees
def __setattr__(self, name, value):
Suppress setting of data - Angle is immutable
self._immutableError()
def __delattr__(self, name):
Suppress deleting of data - Angle is immutable
self._immutableError()
As I say, I wouldn't bother with these, as they make the implementation
more annoying to no real gain.
def __add__(self, other):
if isinstance(other, Angle):
return Angle(self._value + other._value)
return NotImplemented
Using 'isinstance' is usually a mistake - rather than checking for type,
you should just use an object as if it were the correct type and, if
necessary, deal with the resulting exceptions. This means you can use
objects of a different type, as long as they have the right interface.
Here, I'd do:
def __add__(self, other):
return Angle(self.radians + other.radians)
and likewise for __sub__.
def __mul__(self, other):
return self * other
if isinstance(other, Angle):
return Angle(self._value * other._value)
return NotImplemented
Leaving aside my earlier point about not checking for types, does it even
make sense to multiply an angle by another angle? I would have thought
you multiplied angles by numbers. So just do:
def __mul__(self, other):
return Angle(self._value * other)
And the same for __div__
def fromCos(self, c):
return angle with specified cos
return Angle(math.acos(c))
fromCos = classmethod(fromCos)
You could use decorators here; and the preferred python style for method
names is all lower case, separated by underscores:
@classmethod
def from_cos(self, c):
return Angle(math.acos(c))
radians = property(lambda self: self._value, lambda x:
self._immutableError())
You don't need to explicitly raise an exception in the setter; just don't
specify a setter function, and attempting to set the property will raise
an AttributeError.
DEG_30 = Angle(math.radians(30))
Given that you've gone to the trouble of creating a constructor that will
take values as degrees, why not use it here?
--
http://mail.python.org/mailman/listinfo/python-list
Re: How to generate pdf file from an html page??
On Dec 16, 3:51 am, abhishek [EMAIL PROTECTED] wrote: Hi everyone, I am trying to generate a PDF printable format file from an html page. Is there a way to do this using python. If yes then which library and functions are required and if no then reasons why it cant be done. Thank you All You may want to investigate. http://pisa.spirito.de/ It worked for me in some simple conversions -- http://mail.python.org/mailman/listinfo/python-list
Re: why this error?
thanks all first. but i had one class bellow to get object info what user had inputed when run application. because the problem that i had showed yestoday, i must write the code so hard to understand. can any friend tell me one way to solve this problem? thanks!! list: import inspect vtStd,vtIron=range(2) versionType=vtStd moduleName=None objectName=None def _functionFilter(name): #because the problem, i must write this function exec import %s%(moduleName,) a=getattr(eval(objectName),name) return callable(a) def _classFilter(name): #because the problem, i must write this function exec import %s%(moduleName,) a=getattr(eval(objectName),name) return inspect.isclass(a) def _varFilter(name): #because the problem, i must write this function exec import %s%(moduleName,) a=getattr(eval(objectName),name) return not(callable(a) or inspect.isclass(a)) class moduleInfo(object): def __init__(self): self.dirs=None self.moduleName=None self.objectName=None self.classes=None self.functions=None self.variants=None self.objectType=None def readContent(self,mname,name): global moduleName,objectName exec import %s%(mname) #because this line, can't write code like listA not in listB self.dirs=dir(eval(name)) self.objectType=type(eval(name)) self.dirs.sort() self.dirs=tuple(self.dirs) self.moduleName=moduleName=mname self.objectName=objectName=name self.classes=filter(_classFilter,self.dirs) self.functions=filter(_functionFilter,self.dirs) self.variants=filter(_varFilter,self.dirs) #because the problem, i can't write code like bellow: # self.variants=filter(lambda a: (a not in self.classes) and (a not in self.functions),self.dirs) return self.dirs def readHelp(self,mname,objName,memName): global moduleName,objectName exec import %s%(mname) s=%s.%s%(objName,memName) shelp=str(eval(type(%s)\n%(s,))) shelp+=str(eval(\n%s.__doc__%(s,))) return shelp if __name__==__main__: mi=moduleInfo() a=mi.readContent(sys,sys) print dir:,a print class:,mi.classes print fun:,mi.functions print var:,mi.variants -- http://mail.python.org/mailman/listinfo/python-list
Re: assemble a webpage!
En Thu, 13 Dec 2007 19:18:48 -0300, yi zhang [EMAIL PROTECTED] escribi�: Now I am able to use urlretrieve to download the text part of a webpage and wget to get the embedded image. Thanks for the tips! but how can I assemble them together so the image can be displayed in the webpage automatically once I click on the .html file. Right now I only saw the text part of the webpage when I click on it, even I put the .html file and image file in the same directory. Any script can do this job? You have to replace all references to external images in the HTML source, with local ones. That is, replace img src=http://aaa.bbb.com/ddd/images/circle.jpg; to img src=circle.jpg and place circle.jpg in the same directory as the html. The same for background images, css, etc. wget can also do that for you, so why insist on using Python? -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
[no subject]
I will be out of the office starting 12/17/2007 and will not return until 12/19/2007. -- http://mail.python.org/mailman/listinfo/python-list
Detecting memory leaks on apache, mod_python
How to detect memory leaks of python programms, which run in an environment like this: * Suse Linux 9.3 * Apache * mod_python The problem occoured after some updates on the infrastructure. It's most possibly caused by trac and it's dependencies, but several components of the OS where updated, too. Any nice tools which play with the above constellation? Thank's for any hints! context: http://dev.lazaridis.com/base/ticket/148 -- http://mail.python.org/mailman/listinfo/python-list
Re: DB Query Parse Hangup
En Fri, 14 Dec 2007 13:17:32 -0300, Merrigan [EMAIL PROTECTED] escribi�: I have been working on this script, and the part that this issue that I have occurs in is when iterating through some results from the db, asking the admin input to delete the entry or not - everything works fine up until the last entry, then it bombs out. I know why - but I am not quite sure how to fix it: You could get some help if you explain what you mean by it bombs out (the program stops with an exception? post the full traceback), and since you know why, telling it would be a good thing too. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Finite State Machine GUI editor in python?
kib [EMAIL PROTECTED] wrote: Hi Hendrik, I've bookmarked these ones : http://www.univ-paris12.fr/lacl/pommereau/tlf/index.html [in French] http://www.ncc.up.pt/~nam/ [look at the FAdo project] http://www.cs.usfca.edu/~jbovet/vas.html [written in Java] Thanks I will check them out - at least the non French ones. My French is constrained to making the noises for yes and no, without being able to spell them... - Hendrik -- http://mail.python.org/mailman/listinfo/python-list
programming container object
I wish to create a generic container object, devlist, such that devlist.method(arguments) runs as for each dev in devlist.pool: dev.method(arguments) and s = devlist.method(arguments) runs as for each dev in devlist.pool: s.append(dev.method(arguments)) ...but it is outside my ability to do so. Can anyone provide an example of how to do that? Thanks, Steve -- http://mail.python.org/mailman/listinfo/python-list
MySQL_python install failed on Ubuntu 7.1
I installed MySQL 5.0.45 on Ubuntu 7.1 and download MySQL_python from Sourceforge (http://sourceforge.net/project/showfiles.php? group_id=22307). Then I untar the package and executed python setup.py install. But I got compilation errors (see part of the failed messages below). Looks like the installation tried to compile the _mysql extension and failed. Anybody knows a solution to this problem? Thanks, Bruza == running install running bdist_egg running egg_info writing MySQL_python.egg-info/PKG-INFO writing top-level names to MySQL_python.egg-info/top_level.txt writing dependency_links to MySQL_python.egg-info/dependency_links.txt reading manifest file 'MySQL_python.egg-info/SOURCES.txt' reading manifest template 'MANIFEST.in' writing manifest file 'MySQL_python.egg-info/SOURCES.txt' installing library code to build/bdist.linux-i686/egg running install_lib running build_py copying MySQLdb/release.py - build/lib.linux-i686-2.5/MySQLdb running build_ext building '_mysql' extension gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O2 -Wall -Wstrict- prototypes -fPIC -Dversion_info=(1,2,2,'final',0) -D__version__=1.2.2 - I/usr/include/mysql -I/usr/include/python2.5 -c _mysql.c -o build/ temp.linux-i686-2.5/_mysql.o -DBIG_JOINS=1 In file included from _mysql.c:29: pymemcompat.h:10:20: error: Python.h: No such file or directory _mysql.c:30:26: error: structmember.h: No such file or directory In file included from /usr/include/mysql/mysql.h:43, from _mysql.c:40: /usr/include/sys/types.h:153: error: duplicate 'unsigned' /usr/include/sys/types.h:153: error: two or more data types in declaration specifiers _mysql.c:64: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token _mysql.c:65: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token _mysql.c:66: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token _mysql.c:67: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token _mysql.c:68: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token _mysql.c:69: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token _mysql.c:70: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token _mysql.c:71: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token _mysql.c:72: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token _mysql.c:73: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token _mysql.c:74: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token _mysql.c:77: error: expected specifier-qualifier-list before 'PyObject_HEAD' _mysql.c:87: error: expected '=', ',', ';', 'asm' or '__attribute__' before '_mysql_ConnectionObject_Type' _mysql.c:90: error: expected specifier-qualifier-list before 'PyObject_HEAD' _mysql.c:98: error: expected '=', ',', ';', 'asm' or '__attribute__' before '_mysql_ResultObject_Type' _mysql.c:107: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token : : -- http://mail.python.org/mailman/listinfo/python-list
Re: Help: Trouble with imp.load_module
En Tue, 11 Dec 2007 16:09:22 -0300, David Hirschfield [EMAIL PROTECTED] escribi�: So this must have something to do with the . in the name of module test.B.py but what is the problem, exactly? And how do I solve it? I will sometimes need to run load_module on filenames which happen to have . in the name somewhere other than the .py extension. Is the find_module somehow thinking this is a package? Module names must be identifiers (see section 6.12 in the Python Reference Manual) so test.B *cannot* be a module name. Just avoid such names as module names; if you know where the file is located, call load_module directly with an already open file and a fake module name. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
[issue1636] Execfile unable to take arguments beyond 255!
Martin v. Löwis added the comment: Can you please be more specific? What code exactly are you executing, and what is the exact error message that you get? In the entire Python source code, the error message Execfile unable to take arguments beyond 255! is never produced. Very few error messages in Python include an exclamation mark at all. -- nosy: +loewis __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1636 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1519638] Unmatched Group issue
Brandon Mintern added the comment: This is still a problem which has just given me a headache, because using re.sub now requires gymnastics instead of just using a simple string as I did in Perl. -- nosy: +BMintern _ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1519638 _ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1637] urlparse.urlparse misparses URLs with query but no path
New submission from John Nagle:
urlparse.urlparse will mis-parse URLs which have a / after a ?.
sa1 = 'http://example.com?blahblah=/foo'
sa2 = 'http://example.com?blahblah=foo'
print urlparse.urlparse(sa1)
('http', 'example.com?blahblah=', '/foo', '', '', '') # WRONG
print urlparse.urlparse(sa2)
('http', 'example.com', '', '', 'blahblah=foo', '') # RIGHT
That's wrong. RFC3896 (Uniform Resource Identifier (URI): Generic
Syntax), page 23 says
The characters slash (/) and question mark (?) may represent data
within the query component. Beware that some older, erroneous
implementations may not handle such data correctly when it is used as
the base URI for relative references (Section 5.1), apparently
because they fail to distinguish query data from path data when
looking for hierarchical separators.
So urlparse is an older, erroneous implementation. Looking
at the code for urlparse, it references RFC1808 (1995), which
was a long time ago, three revisions back.
Here's the bad code:
def _splitnetloc(url, start=0):
for c in '/?#': # the order is important!
delim = url.find(c, start)
if delim = 0:
break
else:
delim = len(url)
return url[start:delim], url[delim:]
That's just wrong. The domain ends at the first appearance of
any character in '/?#', but that code returns the text before the
first '/' even if there's an earlier '?'. A URL/URI doesn't
have to have a path, even when it has query parameters.
OK, here's a fix to urlparse, replacing _splitnetloc. I didn't use
a regular expression because urlparse doesn't import re, and I
didn't want to change that.
def _splitnetloc(url, start=0):
delim = len(url)# position of end of domain part of url, default is end
for c in '/?#':# look for delimiters; the order is NOT important
wdelim = url.find(c, start)# find first of this delim
if wdelim = 0:# if found
delim = min(delim, wdelim)# use earliest delim position
return url[start:delim], url[delim:]# return (domain, rest)
__
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[issue1600] str.format() produces different output on different platforms (Py30a2)
Mark Summerfield added the comment:
On 2007-12-15, Christian Heimes wrote:
Christian Heimes added the comment:
Mark Summerfield wrote:
It seems to me that Python should provide consistent results across
platforms wherever possible and that this is a gratuitous inconsistency
that makes cross-platform testing less convenient than it need be.
I'll take a look at those functions next week.
It should be fixed in the trunk and merged into py3k. 2.6 suffers from
the same problem.
By the way I have another pending patch which adds consistent handling
of nan and inf on all platforms to float.
Hi Christian,
I've added some code to pystrtod.c's PyOS_ascii_formatd() function that
ensures that the exponent is always at least 3 digits, so long as the
buffer passed in has room.
Although I have svn access, this was granted to me by Georg Brandl only
for doing documentation edits, so I don't feel that I can submit code
patches myself---and in any case my C is rusty, so I would prefer my
code was peer reviewed anyway. Would you be willing to add the patch for
me, assuming you are happy with it?
I've attached my modified pystrtod.c and also pystrtod.diff which shows
the diff against Python 30a2. My code is at the end of the function all
in one lump so it is easy to see what I've done. (I've assumed ANSI C,
so have declared some local variables in my code block rather than at
the top of the function: start, exponent_digit_count, and zeros; they
could all be moved if necessary.)
I hope this helps:-)
Added file: http://bugs.python.org/file8964/pystrtod.diff
Added file: http://bugs.python.org/file8965/pystrtod.c
__
Tracker [EMAIL PROTECTED]
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__*** Python/pystrtod.c 2007-12-16 18:00:29.0 +
--- Python/pystrtod.c.orig 2007-12-16 17:16:30.0 +
***
*** 238,270
}
}
- /* Ensure that the exponent is at least 3 digits,
- providing the buffer is large enough for the extra zeros. */
- if (format_char == 'e' || format_char == 'E') {
- p = buffer;
- while (*p *p != 'e' *p != 'E')
- ++p;
- if (*p (*(p + 1) == '-' || *(p + 1) == '+')) {
- p += 2;
- char *start = p;
- int exponent_digit_count = 0;
- while (*p isdigit((unsigned char)*p)) {
- ++p;
- ++exponent_digit_count;
- }
- int zeros = 3 - exponent_digit_count;
- if (exponent_digit_count zeros 0
- p + zeros + exponent_digit_count + 1
- buffer + buf_len) {
- p = start;
- memmove(p + zeros, p, exponent_digit_count + 1);
- int i = 0;
- for (; i zeros; ++i)
- *p++ = '0';
- }
- }
- }
-
return buffer;
}
--- 238,243
/* -*- Mode: C; c-file-style: python -*- */
#include Python.h
#include locale.h
/* ascii character tests (as opposed to locale tests) */
#define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \
(c) == '\r' || (c) == '\t' || (c) == '\v')
#define ISDIGIT(c) ((c) = '0' (c) = '9')
#define ISXDIGIT(c) (ISDIGIT(c) || ((c) = 'a' (c) = 'f') || ((c) = 'A' (c) = 'F'))
/**
* PyOS_ascii_strtod:
* @nptr:the string to convert to a numeric value.
* @endptr: if non-%NULL, it returns the character after
* the last character used in the conversion.
*
* Converts a string to a #gdouble value.
* This function behaves like the standard strtod() function
* does in the C locale. It does this without actually
* changing the current locale, since that would not be
* thread-safe.
*
* This function is typically used when reading configuration
* files or other non-user input that should be locale independent.
* To handle input from the user you should normally use the
* locale-sensitive system strtod() function.
*
* If the correct value would cause overflow, plus or minus %HUGE_VAL
* is returned (according to the sign of the value), and %ERANGE is
* stored in %errno. If the correct value would cause underflow,
* zero is returned and %ERANGE is stored in %errno.
* If memory allocation fails, %ENOMEM is stored in %errno.
*
* This function resets %errno before calling strtod() so that
* you can reliably detect overflow and underflow.
*
* Return value: the #gdouble value.
**/
double
PyOS_ascii_strtod(const char *nptr, char **endptr)
{
char *fail_pos;
double val = -1.0;
struct lconv *locale_data;
const char *decimal_point;
size_t decimal_point_len;
const char *p, *decimal_point_pos;
const char *end = NULL; /* Silence gcc */
assert(nptr != NULL);
fail_pos = NULL;
locale_data = localeconv();
decimal_point = locale_data-decimal_point;
decimal_point_len = strlen(decimal_point);
[issue1638] %zd configure test fails on Linux
New submission from Hrvoje Nikšić: The printf(%zd, ...) configure test fails on Linux, although it supports the %zd format. config.log reveals that the test tests for %zd with Py_ssize_t, which is (within the test) typedeffed to ssize_t. But the appropriate system header is not included by the test, and ssize_t is not defined. This results in Py_ssize_t not being correctly defined, and the test failing. According to http://tinyurl.com/3dhbbm/, ssize_t is defined in sys/types.h. Adding #include sys/types.h manually to the test fixes the test for me. A patch like the one attached should fix the problem. -- files: patch messages: 58675 nosy: hniksic severity: normal status: open title: %zd configure test fails on Linux versions: Python 2.5 Added file: http://bugs.python.org/file8966/patch __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1638 __ patch Description: Binary data ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1638] %zd configure test fails on Linux
Christian Heimes added the comment: I fixed the bug in r59533 trunk with a modified patch: #ifdef HAVE_SYS_TYPES_H #include sys/types.h #endif Should it be backported to 2.5? It will be merged into 3.0 automatically. -- nosy: +tiran priority: - normal resolution: - fixed status: open - pending __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1638 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1638] %zd configure test fails on Linux
Martin v. Löwis added the comment: I think it should be backported. -- nosy: +loewis __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1638 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1638] %zd configure test fails on Linux
Hrvoje Nikšić added the comment: Thanks for the quick review. I considered guarding the include with #ifdef as well, but I concluded it's not necessary for the following reasons: 1. a large number of existing tests already simply include sys/types.h (the makedev test, sizeof(off_t) test, IPv6-related tests, and various socket tests); 2. if sys/types.h doesn't exist, the test will fail, and Python will conclude that %zd is not available. This conclusion is almost certainly correct, as I doubt that a system without sys/types.h has a working %zd format. __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1638 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1632] email cannot be imported
Wubbulous added the comment: I have attempted the following separately: import email import email.Utilsimport email.utils they each return the error: Traceback (most recent call last): File C:\Panda3D-1.4.2\python\lib\smtplib.py, line 49, in ? from email.base64MIME import encode as encode_base64 ImportError: No module named base64MIME -- severity: major - normal __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1632 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1600] str.format() produces different output on different platforms (Py30a2)
Mark Summerfield added the comment:
On 2007-12-15, Christian Heimes wrote:
Christian Heimes added the comment:
Mark Summerfield wrote:
It seems to me that Python should provide consistent results across
platforms wherever possible and that this is a gratuitous inconsistency
that makes cross-platform testing less convenient than it need be.
I'll take a look at those functions next week.
It should be fixed in the trunk and merged into py3k. 2.6 suffers from
the same problem.
By the way I have another pending patch which adds consistent handling
of nan and inf on all platforms to float.
Hi Christian,
I made two mistakes (that I know of)---(1) I forgot that 'g' format can
produce an exponent string, and (2) I did a wrong calculation to ensure
that I didn't overflow the buffer. (Even with those mistakes Python's
test_float and test_fpformat passed fine, as did my own tests.) Anyway,
here's the fixed and hopefully final block of code. The first correction
affects the first if statement, and the second correction affects the
third if statement.
/* Ensure that the exponent is at least 3 digits,
providing the buffer is large enough for the extra zeros. */
if (format_char == 'e' || format_char == 'E' ||
format_char == 'g' || format_char == 'G') {
p = buffer;
while (*p *p != 'e' *p != 'E')
++p;
if (*p (*(p + 1) == '-' || *(p + 1) == '+')) {
p += 2;
char *start = p;
int exponent_digit_count = 0;
while (*p isdigit((unsigned char)*p)) {
++p;
++exponent_digit_count;
}
int zeros = 3 - exponent_digit_count;
if (exponent_digit_count zeros 0
start + zeros + exponent_digit_count + 1
buffer + buf_len) {
p = start;
memmove(p + zeros, p, exponent_digit_count + 1);
int i = 0;
for (; i zeros; ++i)
*p++ = '0';
}
}
}
I've also attached the complete pystrtod.c file with the corrections.
Added file: http://bugs.python.org/file8967/pystrtod.c
__
Tracker [EMAIL PROTECTED]
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__/* -*- Mode: C; c-file-style: python -*- */
#include Python.h
#include locale.h
/* ascii character tests (as opposed to locale tests) */
#define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \
(c) == '\r' || (c) == '\t' || (c) == '\v')
#define ISDIGIT(c) ((c) = '0' (c) = '9')
#define ISXDIGIT(c) (ISDIGIT(c) || ((c) = 'a' (c) = 'f') || ((c) = 'A' (c) = 'F'))
/**
* PyOS_ascii_strtod:
* @nptr:the string to convert to a numeric value.
* @endptr: if non-%NULL, it returns the character after
* the last character used in the conversion.
*
* Converts a string to a #gdouble value.
* This function behaves like the standard strtod() function
* does in the C locale. It does this without actually
* changing the current locale, since that would not be
* thread-safe.
*
* This function is typically used when reading configuration
* files or other non-user input that should be locale independent.
* To handle input from the user you should normally use the
* locale-sensitive system strtod() function.
*
* If the correct value would cause overflow, plus or minus %HUGE_VAL
* is returned (according to the sign of the value), and %ERANGE is
* stored in %errno. If the correct value would cause underflow,
* zero is returned and %ERANGE is stored in %errno.
* If memory allocation fails, %ENOMEM is stored in %errno.
*
* This function resets %errno before calling strtod() so that
* you can reliably detect overflow and underflow.
*
* Return value: the #gdouble value.
**/
double
PyOS_ascii_strtod(const char *nptr, char **endptr)
{
char *fail_pos;
double val = -1.0;
struct lconv *locale_data;
const char *decimal_point;
size_t decimal_point_len;
const char *p, *decimal_point_pos;
const char *end = NULL; /* Silence gcc */
assert(nptr != NULL);
fail_pos = NULL;
locale_data = localeconv();
decimal_point = locale_data-decimal_point;
decimal_point_len = strlen(decimal_point);
assert(decimal_point_len != 0);
decimal_point_pos = NULL;
if (decimal_point[0] != '.' ||
decimal_point[1] != 0)
{
p = nptr;
/* Skip leading space */
while (ISSPACE(*p))
p++;
/* Skip leading optional sign */
if (*p == '+' || *p == '-')
p++;
while (ISDIGIT(*p))
p++;
if (*p == '.')
{
decimal_point_pos = p++;
while (ISDIGIT(*p))
p++;
if (*p == 'e' || *p == 'E')
p++;
if (*p == '+' || *p == '-')
p++;
while (ISDIGIT(*p))
p++;
end = p;
}
else if (strncmp(p, decimal_point, decimal_point_len) == 0)
{
/* Python
[issue1636] Execfile unable to take arguments beyond 255!
Jack Atkinson added the comment:
Error message from ipython console:
In [28]: mibBuilder2 = builder.MibBuilder().loadModules('ADTRAN-TC')
---
class 'pysnmp.smi.error.SmiError' Traceback (most recent call last)
C:\Documents and Settings\Jack Atkinson\ipython console in module()
c:\python25\lib\site-packages\pysnmp\v4\smi\builder.py in
loadModules(self, *mod
Names)
80 del self.__modPathsSeen[modPath]
81 raise error.SmiError(
--- 82 'MIB module \%s\ load error: %s' %
(modPath, why)
83 )
84
class 'pysnmp.smi.error.SmiError': MIB module
c:\python25\lib\site-packages\p
ysnmp\v4\smi\mibs\ADTRAN-TC.py load error: more than 255 arguments
(ADTRAN-TC.p
y, line 33)
Here's the code that loads it:
try:
execfile(modPath, g)
except StandardError,
why: del self.__modPathsSeen[modPath]
raise error.SmiError( 'MIB module \%s\ load error: %s' % (modPath, why) )
Added file: http://bugs.python.org/file8968/builder.py
__
Tracker [EMAIL PROTECTED]
http://bugs.python.org/issue1636
__# MIB modules loader
import os
from pysnmp.smi import error
try:
import pysnmp_mibs
except ImportError:
pysnmp_mibs = None
from pysnmp import debug
class MibBuilder:
def __init__(self):
self.lastBuildId = self._autoName = 0L
paths = (
os.path.join(os.path.split(error.__file__)[0], 'mibs','instances'),
os.path.join(os.path.split(error.__file__)[0], 'mibs')
)
if os.environ.has_key('PYSNMP_MIB_DIR'):
paths = paths + (
os.path.join(os.path.split(os.environ['PYSNMP_MIB_DIR'])[0]),
)
if pysnmp_mibs:
paths = paths + (
os.path.join(os.path.split(pysnmp_mibs.__file__)[0]),
)
self.mibSymbols = {}
self.__modSeen = {}
self.__modPathsSeen = {}
apply(self.setMibPath, paths)
# MIB modules management
def setMibPath(self, *mibPaths):
self.__mibPaths = map(os.path.normpath, mibPaths)
debug.logger debug.flagBld and debug.logger('setMibPath: new MIB path
%s' % (self.__mibPaths,))
def getMibPath(self): return tuple(self.__mibPaths)
def loadModules(self, *modNames):
# Build a list of available modules
if not modNames:
modNames = {}
for mibPath in self.__mibPaths:
try:
for modName in os.listdir(mibPath):
if modName == '__init__.py' or modName[-3:] != '.py':
continue
modNames[modName[:-3]] = None
except OSError:
continue
modNames = modNames.keys()
if not modNames:
raise error.SmiError(
'No MIB module to load at %s' % (self,)
)
for modName in modNames:
for mibPath in self.__mibPaths:
modPath = os.path.join(
mibPath, modName + '.py'
)
debug.logger debug.flagBld and debug.logger('loadModules:
trying %s' % modPath)
try:
open(modPath).close()
except IOError, why:
debug.logger debug.flagBld and debug.logger('loadModules:
open() %s' % why)
continue
if self.__modPathsSeen.has_key(modPath):
debug.logger debug.flagBld and debug.logger('loadModules:
seen %s' % modPath)
continue
else:
self.__modPathsSeen[modPath] = 1
g = { 'mibBuilder': self }
try:
execfile(modPath, g)
except StandardError, why:
del self.__modPathsSeen[modPath]
raise error.SmiError(
'MIB module \%s\ load error: %s' % (modPath, why)
)
self.__modSeen[modName] = modPath
debug.logger debug.flagBld and debug.logger('loadModules:
loaded %s' % modPath)
break
if not self.__modSeen.has_key(modName):
raise error.SmiError(
'MIB file \%s.py\ not found in search path' % modName
)
return self
def unloadModules(self, *modNames):
if not modNames:
modNames = self.mibSymbols.keys()
for modName in modNames:
if not self.mibSymbols.has_key(modName):
raise error.SmiError(
'No module %s at %s' % (modName, self)
)
self.unexportSymbols(modName)
del
[issue1722225] Build on QNX
Vladimir Konjkov added the comment: willing you implement thread support for qnx6, or may be qnx4? _ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue175 _ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1621] Python should compile with -Wstrict-overflow when using gcc
Alexandre Vassalotti added the comment: I compiled Python using gcc 4.3.0 with the -Wstrict-overflow, and that's the only warning I got: Objects/doubledigits.c: In function ‘_PyFloat_Digits’: Objects/doubledigits.c:313: error: assuming signed overflow does not occur when assuming that (X + c) X is always false I am sure yet how to interpret it, though. It says that the overflow check is in _PyFloat_Digits(), line 313 is in the function add_big(). It probably means that add_big() gets inlined. I tried to set -finline-limit=0, but strangely the overflow warning disappears... I will try to investigate this further, when I will have a bit more time in my hands. -- nosy: +alexandre.vassalotti __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1621 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
