Eryk Sun <[email protected]> added the comment:
MSYS2 has basically the same problem when the script is passed as a Windows
path, except it uses "/c" for the "C:" drive instead of "/cygdrive/c".
# python3 -VV
Python 3.9.9 (main, Dec 28 2021, 11:05:23)
[GCC 11.2.0]
# echo $PWD
/proc
# python3 C:/Temp/test.py
python3: can't open file '/proc/C:/Temp/test.py': [Errno 2] No such file or
directory
Windows paths in the command-line arguments appear to be passed without
conversion:
# python3 -ic 1 C:/Temp/test.py
>>> import os
>>> open(f'/proc/{os.getpid()}/cmdline').read().split('\0')
['python3', '-ic', '1', 'C:/Temp/test.py', '']
They're generally supported:
>>> open('C:/Temp/test.py').read()
'import sys\nprint(sys.executable)\n\n'
>>> os.path.samefile('C:/Temp/test.py', '/c/Temp/test.py')
True
>>> os.path.abspath('C:/Temp/test.py')
'C:/Temp/test.py'
realpath() doesn't support them:
>>> os.path.realpath('C:/Temp/test.py')
'/:/Temp/test.py'
But the C API _Py_wrealpath() does:
>>> import ctypes
>>> path = (ctypes.c_wchar * 1000)()
>>> ctypes.pythonapi._Py_wrealpath('C:/Temp/test.py', path, 1000)
1484496
>>> path.value
'/c/Temp/test.py'
----------
nosy: +eryksun
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<https://bugs.python.org/issue46751>
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