For-loops in python
- by Znarkus
What is the best way of doing this in Python?
for (v = n / 2 - 1; v >= 0; v--)
I actually tried Google first, but as far as I can see the only solution would be to use while.
Search Results
Search found 13534 results on 542 pages for 'python 2 x'.
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How do I type a floating point infinity literal in python
- by fmark
How do I type a floating point infinity literal in python? I have heard inf = float('inf') is non portable. Thus, I have had the following recommended: inf = 1e400 Is either of these standard, or portable? What is best practice?Read the article
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Extract images from PDF without resampling, in python?
- by matt wilkie
How might one extract all images from a pdf document, at native resolution and format? (Meaning extract tiff as tiff, jpeg as jpeg, etc. and without resampling). Layout is unimportant, I don't care were the source image is located on the page. I'm using python 2.6 but can use 3.x if required. thanksRead the article
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Programmatically setting an attribute in Python?
- by Nick
Suppose I have a python object x and a string s, how do I set the attribute s on x? So: >>> x = SomeObject() >>> attr = 'myAttr' >>> # magic goes here >>> x.myAttr 'magic' What's the magic? The goal of this, incidentally, is to cache calls to x.__getattr__().Read the article
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Parsing a context-free grammar in Python
- by Yuval A
What tools are available in Python to assist in parsing a context-free grammar? Of course it is possible to roll my own, but I am looking for a generic tool that can generate a parser for a given CFG.Read the article
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Python: get default gateway for a local interface/ip address in linux
- by gnp
On Linux, how can I find the default gateway for a local ip address/interface using python? I saw the question "How to get internal IP, external IP and default gateway for UPnP", but the accepted solution only shows how to get the local IP address for a network interface on windows. Thanks.Read the article
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xml to Python data structure using lxml
- by Samuel Taylor
How can I convert xml to Python data structure using lxml? I have searched high and low but can't find anything.Read the article
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Fitting a gamma distribution with (python) Scipy
- by Archanimus
Hi folks, Can anyone help me out in fitting a gamma distribution in python? Well, I've got some data : X and Y coordinates, and I want to find the gamma parameters that fit this distribution... In the Scipy doc, it turns out that a fit method actually exists but I don't know how to use it :s.. first, in wich format the argument "data" must be, and how can I provide the seconde argument (the parameters) since this what I'm looking for ??? Thanks a lot!Read the article
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Force import module from Python standard library instead of PYTHONPATH default
- by jrdioko
I have a custom module in one of the directories in my PYTHONPATH with the same name as one of the standard library modules, so that when I import module_name, that module gets loaded. If I want to use the original standard library module, is there any way to force Python to import from the standard library rather than from the PYTHONPATH directory, short of renaming the custom module and changing every reference to point to the new name?Read the article
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How to use memset on "read-write buffer" object in Python
- by fuenfundachtzig
I have a Python function that gives back some read-write buffer: >>> x = h.GetEXlow() >>> x <read-write buffer ptr 0xa2b8140, size 2147483647 at 0x8b73f80> Now I would like to memset the whole buffer content to zero. (The size stated above is obviously wrong, but I can determine the size without problems.) How do I do this?Read the article
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Quote POSIX shell special characters in Python output
- by ??O?????
There are times that I automagically create small shell scripts from Python, and I want to make sure that the filename arguments do not contain non-escaped special characters. I've rolled my own solution, that I will provide as an answer, but I am almost certain I've seen such a function lost somewhere in the standard library. By “lost” I mean I didn't find it in an obvious module like shlex, cmd or subprocess. Do you know of such a function in the stdlib?Read the article
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Encoding in XML declaration python
- by Nims
I have created an XML file using python. But the XML declaration has only version info. How can I include encoding with XML declaration like: <?xml version="1.0" encoding="UTF-8"?>Read the article
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Google App Engine Python Unit Tests
- by oneself
Hi, I'd like to write some Python unit tests for my Google App Engine. How can I set that up? Does someone happen to have some sample code which shows how to write a simple test?Read the article
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Looking for a python library to parse RRD databases
- by jedberg
I have an RRD database, and I want to parse some of the data in it. I found this: http://pypi.python.org/pypi/PyRRD/0.0.7 but it basically just calls the command line tools (no parsing). Does anyone know of a library that will actually parse the output of rrdtool dump? Thanks!Read the article
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Python, print delimited list
- by Mike
Consider this Python code for printing a list of comma separated values for element in list: print element + ",", What is the preferred method for printing such that a comma does not appear if element is the final element in the list. ex a = [1, 2, 3] for element in a print str(element) +",", output 1,2,3, desired 1,2,3Read the article
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Search jpeg files using python
- by Nims
Hi, My requirement is to search for jpeg images files in a directory using python script and list the file names. Can anyone help me on how to identify jpeg images files. Thanks in advance...Read the article
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Python Equivilant to phpinfo()
- by Frank V
Quite simply, is there a python equivalent to php's phpinfo();? If so, what is it and how do I use it (a link to a reference page would work great).Read the article
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python subprocess block
- by MW
Hello. I'm having a problem with the module subprocess. I'm running a script from python through: subprocess.Popen('./run_pythia.sh',shell=True).communicate() and sometimes it just blocks and it doesn't finish to execute the script. Before I was using .wait() instead of .communicate() but then because of this: http://dcreager.net/2009/08/06/subprocess-communicate-drawbacks/ I changed to .communicate(). Nevertheless the problem continues. Can anyone help me?Read the article
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Are strings pooled in Python
- by Nikolay Vyahhi
Does Python have a pool of all strings and are they (strings) singletons there? More precise, in the following code one or two strings were created in memory: a = str(num) b = str(num) ?Read the article
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Control links2 by python
- by methyl
Hi. Is there any way to control links browser from python? I need to make some bot, twill don't work on my page, Selenium need's X server. Maybe other way to do it?Read the article
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Python directory list returned to Django template
- by Shu
Total Python newb here. I have a images directory and I need to return the names and urls of those files to a django template that I can loop through for links. I know it will be the server path, but I can modify it via JS. I've tried os.walk, but I keep getting empty results.Read the article
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Set serial port pin high using python
- by morph
Hello, Is it possible to set one pin of the serial port continuesly high using python (or C)? If yes, how? Thanks in advanceRead the article
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Removing right-to-left mark and other unicode characters from input in Python
- by Earl Bellinger
I am writing a forum in Python. I want to strip input containing the right-to-left mark and things like that. Suggestions? Possibly a regular expression?Read the article
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Iterating over Python list a slice at a time
- by jrdioko
I'd like to iterate over a list in Python several (say, 10) elements at a time, processing each slice one by one. I can think of a few ways to do this, but none seems obvious and clean. What is the most Pythonic way to do this?Read the article
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Game engine with python scripting?
- by Kayle
Looking to put together a 3D side-scrolling action platformer. Since this is my first time trying to put together a non-simple adventure game, I'm at a loss for which engine to consider. I would prefer one that supports scripting in python, since that's my primary language. Without tight controls, the game will suck... so speed is a priority. Cross-platform is also important to me. Any suggestions?Read the article
