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Fix RuntimeError on sys.modules in reset_warning_registry

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Django 1.8's reset_warning_registry (which we backport)
was generating `RuntimeError: dictionary changed size
during iteration` in Travis tests under Python 3.x.

Likely a thread-safety issue on sys.modules.values().
See https://code.djangoproject.com/ticket/21049
for fix applied elsewhere in Django.
This commit is contained in:
medmunds
2015-05-12 18:42:12 -07:00
parent fd75c4b24d
commit 8db86a8274
1 changed files with 2 additions and 1 deletions
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3
djrill/tests/utils.py
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@@ -91,6 +91,7 @@ class BackportedAssertions(object):
# Backport from Django 1.8 (django.test.utils)
# with fix suggested by https://code.djangoproject.com/ticket/21049
def reset_warning_registry():
"""
Clear warning registry for all modules. This is required in some tests
@@ -100,6 +101,6 @@ def reset_warning_registry():
The bug was fixed in Python 3.4.2.
"""
key = "__warningregistry__"
for mod in sys.modules.values():
for mod in list(sys.modules.values()):
if hasattr(mod, key):
getattr(mod, key).clear()