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Merge for issue #26367

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This commit is contained in:
Brett Cannon 2016-02-20 12:59:36 -08:00
commit 0911c0d271
4 changed files with 410 additions and 394 deletions
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5
Lib/importlib/_bootstrap.py
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@ -922,9 +922,12 @@ def _sanity_check(name, package, level):
raise TypeError('module name must be str, not {}'.format(type(name)))
if level < 0:
raise ValueError('level must be >= 0')
if package:
if level > 0:
if not isinstance(package, str):
raise TypeError('__package__ not set to a string')
elif not package:
raise ImportError('attempted relative import with no known parent '
'package')
elif package not in sys.modules:
msg = ('Parent module {!r} not loaded, cannot perform relative '
'import')