The first message of the longMessage docs is confusing:

https://docs.python.org/3/library/unittest.html#unittest.TestCase.longMessage

> If set to True then ....

This reads between the lines, that the default is False.

But that was long ago in Python2. In Python3 the default is True (which I prefer to the old default).

I think the docs should be like.

And the term "normal message" is not defined. For new comers the "normal message" is what I get if you don't change the default, not the behaviour of the Python2 version :-)

I think "normal message" should be replaced with "short message" or "diff message" .. I am unsure.

What do you think?