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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/importlib | |
| parent | c6b20be85c0de6f2355c67ae6e7e578941275cc0 (diff) | |
| download | cpython-git-293dd23477eef6e7c1b1e26b5bb2c1e0d79ac3c2.tar.gz | |
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/importlib')
| -rw-r--r-- | Lib/importlib/abc.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/importlib/abc.py b/Lib/importlib/abc.py index 4b2d3de6d9..b1b5ccce4b 100644 --- a/Lib/importlib/abc.py +++ b/Lib/importlib/abc.py @@ -10,7 +10,7 @@ except ImportError as exc: _frozen_importlib = None try: import _frozen_importlib_external -except ImportError as exc: +except ImportError: _frozen_importlib_external = _bootstrap_external import abc import warnings |