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bukzor/gist:21ea47b35ca6c4f36a211edc9b15be25

Created September 14, 2020 20:02
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__file__ is always realpath?
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gistfile1.txt
$ cd "$(mktemp -d)"
$ ln -sf realpath symlink
$ mkdir realpath
$ cd symlink
$ touch foo.py
$ python3.6 -m compileall $PWD/foo.py
Compiling '/tmp/tmp.Y45AhTTLrt/symlink/foo.py'...
# Note: "/symlink/" in the path
$ strings __pycache__/foo.cpython-36.pyc
P/tmp/tmp.Y45AhTTLrt/symlink/foo.py
<module>
# Note: "/symlink/" not in the path
$ python3.6 -c 'import foo; print(foo.__file__, foo.__cached__, sep="\n")'
/tmp/tmp.Y45AhTTLrt/realpath/foo.py
/tmp/tmp.Y45AhTTLrt/realpath/__pycache__/foo.cpython-36.pyc
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