Making a library run unittests correctly for any Python > 2.6

gistfile1.txt

import sys

if sys.version_info[0] == 2 and sys.version_info[1] < 7:
    sys.path.insert(0, "./<my_module>")
    from <my_submodule> import fun1, fun2
else:
    from <my_module>.<my_submodule> import fun1, fun2
    
For Python 2 / 3:

python -m unittest discover

For python 2.6 you need to run each test file:

python ./test/test_<my_submodule>.py