pytest --doctest-modules freezes computer

[SrMouraSilva]

Hello, when I execute pytest --doctest-modules in my project PluginsManager the computer freezes and I need reboot!

You can see here the problem: https://travis-ci.org/PedalPi/PluginsManager/jobs/289297278#L1156-L1166

How to

I tried on my computer on the virtualenv and in the docker and in both the computer freezes. Also, travis freezes too.

# In docker
#sudo docker run -it python:3.6 bash
#cd tmp/
git clone https://github.com/PedalPi/PluginsManager
cd PluginsManager/
python setup.py develop
git checkout 72b2e6e507cfe23c2cf011f6ded08f2f9ffd2b65
pip install pytest
pytest --doctest-modules # WILL FREEZE PC

pip list of the virtual environment you are using

cffi (1.11.2)
JACK-Client (0.4.2)
PedalPi-PluginsManager (0.5.1, /tmp/PluginsManager)
pip (9.0.1)
py (1.4.34)
PyAudio (0.2.11)
pycparser (2.18)
pytest (3.2.3)
setuptools (36.6.0)
wheel (0.30.0)

[The-Compiler]

This smells like #1217, which is a Python bug. Can you test the same thing with Python 3.6?

[SrMouraSilva]

Appears to be a python error: https://travis-ci.org/PedalPi/PluginsManager/builds/289297276

• Python: 3.4: Not freeze

platform linux -- Python 3.4.6, pytest-3.0.7, py-1.4.33, pluggy-0.4.0
rootdir: /home/travis/build/PedalPi/PluginsManager, inifile:
plugins: cov-2.5.1
collected 125 items / 2 errors 

• Python: 3.5: Freezes

platform linux -- Python 3.5.3, pytest-3.2.1, py-1.4.34, pluggy-0.4.0
rootdir: /home/travis/build/PedalPi/PluginsManager, inifile:
plugins: cov-2.5.1
collecting 21 items / 2 errors                                                  
/home/travis/.travis/job_stages: line 57:  5604 Killed pytest --doctest-modules

• Python: 3.6: Freezes

platform linux -- Python 3.6.3, pytest-3.2.2, py-1.4.34, pluggy-0.4.0
rootdir: /home/travis/build/PedalPi/PluginsManager, inifile:
plugins: cov-2.5.1
collecting 21 items / 2 errors
/home/travis/.travis/job_stages: line 57:  5585 Killed  pytest --doctest-modules

• Python: 3.7-dev: Not freeze

platform linux -- Python 3.7.0a0, pytest-3.2.1, py-1.4.34, pluggy-0.4.0
rootdir: /home/travis/build/PedalPi/PluginsManager, inifile:
plugins: cov-2.5.1
collected 125 items / 4 errors                                                  

• Python: nightly: Not freeze

platform linux -- Python 3.7.0a0, pytest-3.2.1, py-1.4.34, pluggy-0.4.0
rootdir: /home/travis/build/PedalPi/PluginsManager, inifile:
plugins: cov-2.5.1
collected 125 items / 4 errors

[nicoddemus]

@SrMouraSilva is this still an issue?

[Zac-HD]

Duplicate of #1217, #3456. Also related to #2188 - mock.call causes a lot of issues, but the doctest collection problem is upstream in Python itself.