There are common libraries which do things incompatible with the way pypy works. I've never gotten it to do anything but abort, when run over a non-trivial pro

There are common libraries which do things incompatible with the way pypy works. I've never gotten it to do anything but abort, when run over a non-trivial program. mypy is a very cool experimental project (as their own webpage calls it), but I wouldn't fault anyone for not running it on their program.