Background

I would like pytest to run all my tests but also my examples to make sure they still run. So I want the python_files to test both test_*.py and example_*.py. I'm trying to use global pattern matching to get pytest to check both, but it doesn't seem to work.

MWE

In my setup.cfg file...

[tool:pytest]
python_files={example,test}_*.py

Now pytest discovers neither test_* or example_*.

pytest and OS

Windows 7 - Miniconda3
pytest: 3.7.1

pip list

simplegeneric 0.8.1
six 1.11.
snowballstemmer 1.2.1
Sphinx 1.7.6
sphinx-fortran 1.0.1
sphinx-rtd-theme 0.4.1
sphinxcontrib-websupport 1.1.0
spyder-kernels 0.2.6
sqlitedict 1.5.0
testflo 1.3.0
topfarm 2.0
tornado 5.1
traitlets 4.3.2
urllib3 1.23
utm 0.4.2
wcwidth 0.1.7
wheel 0.31.
wincertstore 0.2
windIO 0.1