Georges Racinet <georges.racinet@octobus.net> [Thu, 16 May 2019 21:22:29 +0200] rev 42378
rust-python3: compatibility fix for incoming PyLong
On Python3, PyInt is PyLong and it doesn't have the
`value()` method.
Re upcasting to PythonObj as done here works, but we
might prefer taking a PythonObj from the onset
(would require more testing)
Differential Revision: https://phab.mercurial-scm.org/D6397