django/django — pull request #1274 by jaap3 (2013-06-14 14:24:42+00:00)
Title: Fixed #20599 -- Changed wording of ValueError raised by _load_library

The _load_library method on BasePasswordHasher turns ImportErrors
into ValueErrors, this masks ImportErrors in the algorithm library.
Changed it to a clearer worded error message that includes
the ImportError string.