New submission from Guido van Rossum:
I created a symlink loop as follows:
mkdir tmp
cd tmp
ln -s ../tmp baz
cd ..
Then I tried to list it recursively using rglob():
>>> list(pathlib.Path('tmp').rglob('**/*')
This caused an infinite regress:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/Users/guido/src/cpython36/Lib/pathlib.py", line 1065, in rglob
for p in selector.select_from(self):
File "/Users/guido/src/cpython36/Lib/pathlib.py", line 549, in _select_from
for p in successor_select(starting_point, is_dir, exists, listdir):
File "/Users/guido/src/cpython36/Lib/pathlib.py", line 548, in _select_from
for starting_point in self._iterate_directories(parent_path, is_dir,
listdir):
File "/Users/guido/src/cpython36/Lib/pathlib.py", line 538, in
_iterate_directories
for p in self._iterate_directories(path, is_dir, listdir):
[...]
File "/Users/guido/src/cpython36/Lib/pathlib.py", line 538, in
_iterate_directories
for p in self._iterate_directories(path, is_dir, listdir):
File "/Users/guido/src/cpython36/Lib/pathlib.py", line 537, in
_iterate_directories
if is_dir(path):
File "/Users/guido/src/cpython36/Lib/pathlib.py", line 1303, in is_dir
return S_ISDIR(self.stat().st_mode)
File "/Users/guido/src/cpython36/Lib/pathlib.py", line 1111, in stat
return self._accessor.stat(self)
File "/Users/guido/src/cpython36/Lib/pathlib.py", line 371, in wrapped
return strfunc(str(pathobj), *args)
OSError: [Errno 62] Too many levels of symbolic links:
'tmp/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz/baz'
----------
messages: 257511
nosy: gvanrossum
priority: normal
severity: normal
status: open
title: pathlib.Path().rglob() is fooled by symlink loops
versions: Python 3.4, Python 3.5, Python 3.6
_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue26012>
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