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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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How do I detect if Python is running as a 64-bit application? [duplicate]
...g some work with the windows registry. Depending on whether you're running python as 32-bit or 64-bit, the key value will be different. How do I detect if Python is running as a 64-bit application as opposed to a 32-bit application?
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Can't import my own modules in Python
I'm having a hard time understanding how module importing works in Python (I've never done it in any other language before either).
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Running unittest with typical test directory structure
The very common directory structure for even a simple Python module seems to be to separate the unit tests into their own test directory:
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Convert a python UTC datetime to a local datetime using only python standard library?
I have a python datetime instance that was created using datetime.utcnow() and persisted in database.
12 Answers
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Running single test from unittest.TestCase via command line
...s works as you suggest - you just have to specify the class name as well:
python testMyCase.py MyCase.testItIsHot
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List comprehension on a nested list?
...n.
Lets do a performance benchmark to see if it is actually true. I used python version 3.5.0 to perform all these tests. In first set of tests I would like to keep elements per list to be 10 and vary number of lists from 10-100,000
>>> python -m timeit "[list(map(float,k)) for k in [lis...
What is the purpose of the -m switch?
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The first line of the Rationale section of PEP 338 says:
Python 2.4 adds the command line switch -m to allow modules to be located using the Python module namespace for execution as scripts. The motivating examples were standard library modules such as pdb and profile, and the Pyth...