Python Forum

hi what is the difference between the two kinds of brackets? I tried a few examples but I can't make out any real difference: lst = print lst print lst print lst lst = (10, 20, 30) print lst

This is becoming utterly painful process.... I found out that the return value from "format_exception" function is NOT a list, i.e. PyList_Check() fails. PySequence_Check() succeeds but then PySequence_List() gives me back -1. So wtf? I must say the API is crap on this part. Im trying to get error information regarding previous error and if...

Hey everybody, MySQL has put up a poll on http://dev.mysql.com asking what your primary programming language is. Even if you don't use MySQL - please go stick in a vote for Python. I'm constantly telling folks that Python needs more love, but PHP and Java are kicking our butts... (I know the world would be a better place if the poll were...

I've gotten this exact problem before and I was able to once figure it out. Since then i've apparently forgetten more of the basic. Does anyone have any idea whats going on here, because fdayhigh is not an empty list... >>> import justCup Traceback (most recent call last): File "<interactive input>", line 1, in <module> File...

Hi guys, it's me! Your least favourite tard has returned with noob-questions needing answers. I am working on making a program that will not only record my dreams in a file, but also store them by date, topic, keywords, and level of lucidness. This is what I have so far: ListOfKeywords= ListOfDates= ListOfTopics= LevelOfLucidness=

Hi All, Does anyone know what version of Python and wxPython comes with the new Mac OS X Leopard? Thanks

Hi everyone i was just makeing myself a little spelling bee program and this problem came up that tells me the <string> needs to be left as an operand. I dont know how to fix this problem so any help you could give me would be much appreciated. Thank you Code:(python) print 'please spell correctly' def loop(): ...

I'm trying to get cgi scripts to work. I can link to the python script, but instead of running and producing an output, it prints the script on the page. I've obviously missed a step in setting it up, but I can't see what it is. Thanks in advance, Brian Shine

I have just come across a site that discusses Python's 'for' and 'while' loops as having an (optional) 'else' structure. At first glance I interpreted it as being a bit like the 'default' structure in PHP's switch block... But the switch block isn't a loop, so, I am now confused as to the reason for using 'else' with the for and while...

Hi, I want to store python text strings that characters like "é" "Č" in a mysql varchar text field. Now my problem is that mysql does not seem to accept these characters. I'm wondering if there is any way I can somehow "encode" these characters to appear as normal characters and then "decode" them when I want to get them out of the database...

Hi.. I have some dictionary as {2:3, 4:6, 5:7.........} I want to pickle to these dictionary and save to database but i couldn't.. My code for adding.. a=eval(dict) a=pickle.dumps(a, -1) cursor2.execute("INSERT INTO cache VALUES ('%s', %s)", (x,a)) conn2.commit()

I'm trying to write a simple game and decided I need an eventmanager. <code> import weakref from collections import defaultdict class _EventManager( object ): def __init__( self ): self._handled_events = defaultdict( weakref.WeakKeyDictionary )

I posted this to the Twisted list...figured I'd try here too. I'm looking for what is probably an simple solution I can't figure out on my own. I'm writing an SSH server based on the example on the web (using conch). I'm trying to figure out how to detect when the client exists (for example, when I just close out PuTTY), but I can't get...

hello, I generate dynamically a sequence of values, but this "sequence" could also have length 1 or even length 0. So I get some line in the form of: line = '(2,3,4)' line = '' line = '(2)' (in fact these are not constant numbers, but all kind of integer

Hi, me again :-) I would like to parse a small batch file: file/read-case kepstop.cas file/read-data keps1500.dat solve/monitors/residual/plot no solve/monitors/residual/print yes

chech wat is happening here.. http://www.createthefuturecontest.com/pages/view/entriesdetail.html?entryID=798

Hi I am facing a problem while including a C header file in the SWIG interface file. However the problem does not occur when i directly copy the contents of header file in the same place. My interface file read as follows. /* interface file dep.i */ %module dep %{ #include "dep.h"

Hello, can I determine somehow if the iteration on a list of values is the last iteration? Example: for i in : if last_iteration: print i*i else:

Hello group, I'm trying to get the Python exception information (message and traceback) stored into a string in my C++ code. However all i get back is the string "None". All the checks pass and all pointers get a value from the python API calls. I've also tried with a different function such as PyObject_CallFunctionObjArgs but the result is...

I am building a wxPython application that plots some data using matplotlib. I am embedding several axis within a figure by creating several repeatedly calling ax1 =fig.add_axes(, **axprops) where axprops is a dict(). This way the plots can share an X-axis. However, I wanted to have one plot have two sets of information. I am familiar...

All, Just a quick question. I want to be able to have a data structure that organizes data (timestamps I'm working with) sequentially, so that i can easily retrieve the first x amount of timeStamps without iterating over a list. My thought was to use a binary tree, am i overthinking the problem to try and implement this structure inside of...

Hi- I am having a problem with shelve. The problem I think is really with gdbm. I'll write out a file using shelve/gdbm on an amd64 machine and then I'll try to read it in on a i386 machine. The result is a 'gdbm fatal: read error.' Reversing directions results in the same problem. Below are two small programs that get at the heart of the...

Hello, I have a problem running Python programs from within SciTE, under Linux --- the input( ) function fails with "IOError: Bad file descriptor" The same program will run happily in SciTE, under Windows --- gets the input, goes off and calculates wondrous things --- but somehow, in Linux, I'm not set up right.

In particular I want to know how to tell if reading and writing to the console can occur. Something like sys.isConsolePresent()

In python, how do I know what exceptions a method could raise? Do I need to look at the source? I don't see this info in the API docs for any of the APIs I'm using. Thanks in advance for your help.