As another follow up to http://bugs.python.org/issue21972

<> is mentioned in the parser spec: https://docs.python.org/3.5/reference/grammar.html
But not in the lexer spec: https://docs.python.org/3.5/reference/lexical_analysis.html

Either is a mistake.

I suggested in issue 21972 that the former was the bug, because it referred to a joke PEP and because <> doesn't actually work as a comparator in Python 3.4. The response by loewis was that the parser documentation was correct — well then the lexer documentation is incorrect.