Karthikeyan Singaravelan <[email protected]> added the comment:
Thanks for the report. I have converted the numpy code as a python helper and I
am not sure if such a helper exists in the current test suite. Attaching the
file that might help as a simple reproducer.
# On master no error
➜ cpython git:(master) ./python.exe ../backups/bpo35030.py
# upstream/2.7 branch
➜ cpython git:(2bad7acdfe) ✗ ./python.exe ../backups/bpo35030.py
Traceback (most recent call last):
File "../backups/bpo35030.py", line 60, in <module>
del a
File "/Users/karthikeyansingaravelan/stuff/python/cpython/Lib/contextlib.py",
line 24, in __exit__
self.gen.next()
File "../backups/bpo35030.py", line 53, in assert_no_gc_cycles
) for o in objects_in_cycles
AssertionError: Reference cycles were found: 1 objects were collected, of which
1 are shown below:
list object with id=4475647608:
[<Recursion on list with id=4475647608>,
<Recursion on list with id=4475647608>,
None]
----------
nosy: +xtreak
Added file: https://bugs.python.org/file47885/bpo35030.py
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<https://bugs.python.org/issue35030>
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