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Is there a way to change the directory where .pyc file are created by the Python interpreter? I saw two PEPs about that subject (0304 and 3147), but none seems to be implemented in the default interpreter (I'm working with Python 3).
Did I miss something ?
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pyc files are placed in the same directory as the . py file. In Python 3.2, the compiled files are placed in a __pycache__ subdirectory, and are named differently depending on which Python interpreter created them. (This can be useful to people importing the same Python modules from multiple versions of Python.)
When a Python source file (module) is imported during an execution for the first time, the appropriate . pyc file is created automatically. If the same module is imported again, then the already created . pyc file is used.
Explains: First finds all __pycache__ folders in current directory. Execute rm -r {} + to delete each folder at step above ( {} signify for placeholder and + to end the command)
__pycache__ is a directory that contains bytecode cache files that are automatically generated by python, namely compiled python, or . pyc , files.
Yes, starting from Python 3.8 you can control this behavior. The original discussion starts from pep 304 in 2003.
While this original PEP was withdrawn, a variant of this feature was eventually implemented for Python 3.8 in https://bugs.python.org/issue33499
In the result, you can control using PYTHONPYCACHEPREFIX=path, -X pycache_prefix=path and sys.pycache_prefix.
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This might be useful for some: Miscellaneous options, especially -B option:
If given, Python won’t try to write .pyc files on the import of source modules. See also
PYTHONDONTWRITEBYTECODE.
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