For some types in Python, the is operator seems to be equivalent to the == operator. For example: >>> 1 is 1 True >>> "a spoon" is "a spoon" True >>> (1 == 1) is (2 == 2) True However, this is not always the case: >>> [] == [] True >>> [] is [] False This makes sense for immutable types such as lists. However, immutable types suc...
Lets say I am designing a tool foobuzzle (foobuzzle's exact job is to set up SRPM files for cross-compiling a variety of codes into their own compartmentalized prefix directories, but this is not important). I would like foobuzzle to take in an input file (buzzle_input) specified by an (intelligent, code-savvy) client, who will tell foo...
Basically, what is the best way to go about storing and using dense matrices in python? I have a project that generates similarity metrics between every item in an array. Each item is a custom class, and stores a pointer to the other class and a number representing it's "closeness" to that class. Right now, it works brilliantly up to ...
Hi, Trying, to figure out why make fails while installin mod_wsgi getting following errors. Can anyone help me out with to figure out what is wrong ? mod_wsgi.c:13910: warning: parameter names (without types) in function declarati on mod_wsgi.c:13910: warning: data definition has no type or storage class mod_wsgi.c:13915: error:...
As far as I know when running a Python script: python myscript.py, Python would by default include the script directory to the sys.path (in fact it should be sys.path[0]). On my machine (Mac OS 10.6.3, running Python 2.5.4) I do see a different behavior where the script itself is set as sys.path[0] instead of its directory. As you can i...
I was wondering what options were available to generate .png based on the kind of input one feeds a graphing calculator.. so (y^2 + 5x + 3) / ((3x + 3) + 5y + 18) would return The only thing I've found so far is texvc in mediawiki, but it seems overkill to get the whole mediawiki for one of it's modules. ...
Suppose I have a tuple in a list like this: >>> t = [("asdf", )] I know that the list always contains one 1-tuple. Currently I do this: >>> dummy, = t >>> value, = dummy >>> value 'asdf' Is there a shorter and more elegant way to do this? ...
Possible Duplicates: Book and tutorial recommedations for Django 1.0 How to Learn Python Hi, I am a Java/JEE programmer and want to learn Python (finally the Django framework) to build web applications. I don't have any experience with scripting languages so this is going to be the first step into the scripting languages wo...
As I understand it, files like /dev/urandom provide just a constant stream of bits. The terminal emulator then tries to interpret them as strings, which results in a mess of unrecognised characters. How would I go about doing the same thing in python, send a string of ones and zeros to the terminal as "raw bits"? edit I may have to cl...
C/C++ can use python API to load py. But, only simple type is supported. How can I pass map into py to be a dict with API? Or, which methods are better? ...
I used cpython api to load py from C/C++. But, if i want not setup cpython in client, can I take package dll of cpython in my program? How to do that? ...
Hi folks, I'm using the following command in order to convert .avi video files ffmpeg -i -f mpegts -acodec libmp3lame -ar 48000 -ab 64k -s 320×240 -vcodec libx264 -b 96k -flags +loop -cmp +chroma -partitions +parti4×4+partp8×8+partb8×8 -subq 5 -trellis 1 -refs 1 -coder 0 -me_range 16 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 ...
I am having a bit of trouble with the Tkinter grid() manager. It is spacing the rows too far apart. I have two entry widgets to place, and I need one almost directly under the other. When I place them both on the same row and column, but change the pady option, it places them directly on top of each other. I know there has to be a way to...
Currently my program updates itself by downloading the latest .tar.gz file containing the source code, and extracting it over the current directory where the program lives. There are 2 "modes" of update - one for users running the Python source, and one if the user is running the program as a Windows exe. Over time my program's filesiz...
Ok, we aren't in the mid-1980s any more, but anyway. Are there any fax libraries for python? ...
Hi, I have a python script that reads raw movie text files into an sqlite database. I use re.escape(title) to add escape chars into the strings to make them db safe before executing the inserts. Why does this not work: In [16]: c.execute("UPDATE movies SET rating = '8.7' WHERE name='\'Allo\ \'Allo!\"\ (1982)'") --------------...
I'm using Python and Django, but I'm having a problem caused by a limitation of MySQL. According to the MySQL 5.1 documentation, their utf8 implementation does not support 4-byte characters. MySQL 5.5 will support 4-byte characters using utf8mb4; and, someday in future, utf8 might support it as well. But my server is not ready to upgrad...
Is there any way to check if a long integer is too large to convert to a float in python? ...
This may sound like a stupid question, since the very purpose of virtualenv is to this exactly: Installing some specific version of a package (in this case Django) inside the virtual environment. But it's exactly what I want to do, and I can't figure it out. I'm on Windows XP, and I created the virtual environment successfully, and I'm ...
I am new to Python's logging package and plan to use it for my project. I would like to customize the time format to my taste. Here is a short code I copied from a tutorial: import logging # create logger logger = logging.getLogger("logging_tryout2") logger.setLevel(logging.DEBUG) # create console handler and set level to debug ch = l...