[issue33672] Fix Task.__repr__ crash when trying to format Cython's bogus coroutines

[Yury Selivanov]

New submission from Yury Selivanov <yselivanov at gmail.com>:


New changeset 989b9e0e6d7dd2fa911f9bfd4744e7f3a82d6006 by Yury Selivanov in branch 'master':
bpo-33672: Fix Task.__repr__ crash with Cython's bogus coroutines (GH-7161)
https://github.com/python/cpython/commit/989b9e0e6d7dd2fa911f9bfd4744e7f3a82d6006


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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33672>
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