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| author |   Pablo Galindo <Pablogsal@gmail.com> | 2019-11-19 21:34:03 +0000 |
|---|---|---|
| committer |   GitHub <noreply@github.com> | 2019-11-19 21:34:03 +0000 |
| commit | 293dd23477eef6e7c1b1e26b5bb2c1e0d79ac3c2 (patch) | |
| tree | 295b4eee204f0d1e4723e62825a86310ddc27578 /Lib/enum.py | |
| parent | bpo-38707: Fix for multiprocessing.Process MainThread.native_id (GH-17088) (diff) | |
| download | cpython-293dd23477eef6e7c1b1e26b5bb2c1e0d79ac3c2.tar.gz cpython-293dd23477eef6e7c1b1e26b5bb2c1e0d79ac3c2.tar.bz2 cpython-293dd23477eef6e7c1b1e26b5bb2c1e0d79ac3c2.zip | |
Remove binding of captured exceptions when not used to reduce the chances of creating cycles (GH-17246)
Capturing exceptions into names can lead to reference cycles though the __traceback__ attribute of the exceptions in some obscure cases that have been reported previously and fixed individually. As these variables are not used anyway, we can remove the binding to reduce the chances of creating reference cycles.
See for example GH-13135
Diffstat (limited to 'Lib/enum.py')
| -rw-r--r-- | Lib/enum.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/enum.py b/Lib/enum.py index 8a6e5d2e46d..06f42a97803 100644 --- a/Lib/enum.py +++ b/Lib/enum.py @@ -420,7 +420,7 @@ class EnumMeta(type): if module is None: try: module = sys._getframe(2).f_globals['__name__'] - except (AttributeError, ValueError, KeyError) as exc: + except (AttributeError, ValueError, KeyError): pass if module is None: _make_class_unpicklable(enum_class) |