Using contextlib.redirect_stderr or redirect_stdout does not work with pywikibot.output():
>>> import contextlib
>>> import io
>>> import pywikibot
>>> with contextlib.redirect_stderr(io.StringIO()) as f:
pywikibot.output('foo')
foo
>>> s = f.getvalue()
>>> s
''
>>> with contextlib.redirect_stdout(io.StringIO()) as f:
pywikibot.output('foo')
foo
>>> s = f.getvalue()
>>> s
''
>>>but it works for Pythons help() function as expected:
>>> with contextlib.redirect_stdout(io.StringIO()) as f:
help('foo')
>>> s = f.getvalue()
>>> s
"No Python documentation found for 'foo'.\nUse help() to get the interactive help utility.\nUse help(str) for help on the str class.\n\n"
>>>The behaviour fails in 6.2 as well as in a very early release 3.0.20180108
