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The modulo operation on negative numbers in Python
I've found some strange behaviour in Python regarding negative numbers:
8 Answers
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How can I force division to be floating point? Division keeps rounding down to 0?
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In Python 2, division of two ints produces an int. In Python 3, it produces a float. We can get the new behaviour by importing from __future__.
>>> from __future__ import division
>>> a = 4
>>> b = 6
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How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP
How can I make any use of PYTHONPATH? When I try to run a script in the path the file is not
found. When I cd to the directory holding the script the script runs. So what good is the
PYTHONPATH?
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How to stop/terminate a python script from running?
...ts to tokeniza 349 text files! How can I stop it? How can I stop a running Python program?
16 Answers
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Why is it slower to iterate over a small string than a small list?
...ence is closer to 70% (or more) once a lot of the overhead is removed, for Python 2.
Object creation is not at fault. Neither method creates a new object, as one-character strings are cached.
The difference is unobvious, but is likely created from a greater number of checks on string indexing, with ...
Emacs bulk indent for Python
Working with Python in Emacs if I want to add a try/except to a block of code, I often find that I am having to indent the whole block, line by line. In Emacs, how do you indent the whole block at once.
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How to declare an array in Python?
How do I declare an array in Python ?
16 Answers
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Finding the source code for built-in Python functions?
Is there a way to see how built in functions work in python? I don't mean just how to use them, but also how were they built, what is the code behind sorted or enumerate etc...?
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Unable to import a module that is definitely installed
..., just running sudo pip install .... Simple fix: sudo chmod -R ugo+rX /lib/python2.7/site-packages/
– jozxyqk
Feb 16 '15 at 10:04
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Wrapping a C library in Python: C, Cython or ctypes?
I want to call a C library from a Python application. I don't want to wrap the whole API, only the functions and datatypes that are relevant to my case. As I see it, I have three choices:
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