passlib supports bcrypt (cf URL), but needs an additional library for it, as the internal python implementation is too slow. The homepage lists three alternatives, but only one of them is feasible: dev-python/py-bcrypt. Hence, the package should depend on it, perhaps shielded by a 'bcrypt'-useflag (not sure about it). For completeness' sake: The other options are bcryptor (not in portage) and support in crypt.crypt() (not existing).
I'll add py-bcrypt to tree (most likely) and support it as a hard dep (since bcrypt is probably a good thing to force imo (as bad as that sounds)).
Please note that py-bcrypt already is in the tree (though it really needs a bump -- see bug #488228)
that works too
done :D
