R. David Murray added the comment:
It means they are keyword-only arguments. This could be mentioned in the text,
with the term 'keyword-only arguments' linked to an appropriate glossary entry
(which appears to need to be added).
--
keywords: +easy
nosy: +r.david.murray
stage: -> nee
New submission from icedream91:
I think the documents talking about list.sort() in page
http://docs.python.org/3/library/stdtypes.html#list.sort is not clear enough.
What asterisk means in "sort(*, key=None, reverse=None)", may be cmp argument
from Python 2, or anything else? Or it is a typo?
