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When an exception occurs, the full path to the file from which it
originates is displayed, but redundant elements are not removed. For
instance:
$ ./python ./foo
Traceback (most recent call last):
File "/home/User/cpython/./foo", line 4, in <module>
a()
File "/home/User/cpython/./foo", line 3, in a
def a(): raise ValueError
ValueError
This happens because the function _Py_abspath (in Python/fileutils.c)
appends relative_path_to_file to absolute_path_to_current_working_directory.
Not sure if this should be treated as a bug, because the definition of
'absolute path' is not clear. Does it mean a path starting from the root
directory, or a path without redundant elements? The os module, for
instance, does the following.
$ ./python
>>> import os.path
>>> os.path.isabs('/home/..')
True
>>> os.path.abspath('/home/..')
'/'
Either way: should the traceback display the path without redundant
elements?

I am using CPython 3.13.0a0 (595ffddb33e95d8fa11999ddb873d08e3565d2eb).
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