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Yes, but now I want to know: 1. Is there a C version? I don't see it in the same directory. 2. If there is a C version, does anyone who submits a PR (like the
by rahimnathwani 6y ago
Yes, but now I want to know:
1. Is there a C version? I don't see it in the same directory.
2. If there is a C version, does anyone who submits a PR (like the one in 2019 adding 'key'[0]) have to submit a C version along with it?
[0] https://bugs.python.org/issue4356 https://bugs.python.org/issue4356
- kaunta 6y agoThe C version is in Modules/_bisectmodule.c, whereas the Python version is in Lib/bisect.py. Python version: https://github.com/python/cpython/blob/master/Lib/bisect.py https://github.com/python/cpython/blob/master/Lib/bisect.py C version: https://github.com/python/cpython/blob/master/Modules/_bisectmodule.c https://github.com/python/cpython/blob/master/Modules/_bisec...
- rahimnathwani 6y agoThanks. So it seems both were updated with 'key' at the same time: https://github.com/python/cpython/commit/871934d4cf00687b3d1411c6e344af311646c1ae https://github.com/python/cpython/commit/871934d4cf00687b3d1... Now I'm wondering - what is the point of the python version, if it will always be overridden by the C implementation? Are there circumstances (platforms, compile flags, ...) under which the C version would be unavailable when the python runtime is compiled?
- quietbritishjim 6y agoIt may be that other Python implementations use CPython's standard library, or at least part of it. I think that PyPy in particular does this, but I'm not 100% sure. I know for certain that it uses pure Python implementation of some modules from somewhere. One program I took great pains to be PyPy compatible ended up being a lot slower in it, and it turned out to be that the built-in sqlite3 module has a C implementation in CPython that's faster than the pure-Python version even when runing in PyPy.