更新到2016.2后，Pycharm导入RuntimeWarning

Question

After updating to new version 2016.2, I am getting

RuntimeWarning: Parent module 'tests' not found while handling absolute import
  import unittest
RuntimeWarning: Parent module 'tests' not found while handling absolute import
  import datetime as dt

'tests' is a package inside my main app package, and I receive these warnings when I try to execute unit tests inside this folder. This issue only came up after updating to 2016.2. Besides the warnings, the remaining code works fine.

Edit: This is a known issue - https://youtrack.jetbrains.com/issue/PY-20171 . They are suggesting to replace utrunner.py in PyCharm installation folder.

Answer 1

This is a known issue introduced with the 2016.2 release. Progress can be followed on the JetBrains website here . According to this page it is due to be fixed in the 2017.1 release. You can follow the utrunner.py workaround that others have mentioned in the meantime - a copy of this file is attached to the linked ticket.

Answer 2

最新推荐（2016年12月19日）是将此行放在单元测试脚本的顶部：

from __future__ import absolute_import

Answer 3

On OS X I've fixed this by replacing

Applications/PyCharm.app/Contents/helpers/pycharm/utrunner.py 

with an older version that can be found at http://code.metager.de/source/xref/jetbrains/intellij/community/python/helpers/pycharm/utrunner.py

Answer 4

On Ubuntu 16.04 Bobby's solution also works:

Just replace your local utrunner.py file at

/usr/local/pycharm-edu-3.0/helpers/pycharm/utrunner.py

by the one from the Jetbrains website: http://code.metager.de/source/xref/jetbrains/intellij/community/python/helpers/pycharm/utrunner.py

Answer 5

On Windows 10 Bobby's solution also works:

Just replace your local utrunner.py file at

C:\Program Files (x86)\JetBrains\PyCharm 2016.3\helpers\pycharm

with the one from the Jetbrains website: http://code.metager.de/source/xref/jetbrains/intellij/community/python/helpers/pycharm/utrunner.py