Merge pull request #3234 from tomowind/issue_3225

#3225: document "del tb"
2019-05-31 10:58:44 -04:00 · 2019-05-31 10:58:44 -04:00 · 14e9291380
commit 14e9291380
parent 6ac4b93779 2a97d4a706
1 changed files with 2 additions and 0 deletions
--- a/flask/cli.py
+++ b/flask/cli.py
@ -132,6 +132,8 @@ def _called_with_wrong_args(factory):
        # didn't reach the factory
        return True
    finally:
+        # explicitly delete tb as it is circular referenced
+        # https://docs.python.org/2/library/sys.html#sys.exc_info
        del tb