[Python-mode] highlight bug?

[andrea crotti]

Before I wasn't sure if it was an old bug, but today I got the last
revision from bzr and I see the same.

Function and variable names containing reserved keywords are not
highlighted correctly.
For example in

def generate_random_tuple()

tuple is colored as it was the tuple function call...
Anyone else seeing this?
By the way I've seen many comments about it but I never really
understood, why this python-mode is not included
in emacs instead of the crappy default one?