BUG: fix distutils conversion when dist.entry_points is None.
BUG: fix distutils conversion when dist.entry_points is None.

cournape/Bento,abadger/Bento,abadger/Bento,cournape/Bento,cournape/Bento,abadger/Bento,cournape/Bento,abadger/Bento