doctest.testfile(filename, module_relative=True, name=None, package=None, globs=None, verbose=None, report=True, optionflags=0, extraglobs=None, raise_on_error=False, parser=DocTestParser(), encoding=None)
All arguments except filename are optional, and should be specified in keyword form.
Test examples in the file named filename. Return (failure_count,
test_count).
Optional argument module_relative specifies how the filename should be interpreted:
If module_relative is True (the default), t