test_that_video_index_is_written_on_eos: Skip if there is no Python2 installed
test_that_video_index_is_written_on_eos: Skip if there is no Python2 installed

`webminspector.py` is unmaintained and only works on Python 2.

Our "ubuntu1804-python3" CircleCI container doesn't have Python 2
installed (to make sure that none of our tests are accidentally passing
by using Python 2 instead of 3).

stb-tester/stb-tester,stb-tester/stb-tester,stb-tester/stb-tester,stb-tester/stb-tester