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.
* py-bcrypt has not been updated in some time
* py-bcrypt does not support Python3
* py3k-bcrypt, a port of py-bcrypt to python3 is not compatible
with Django
* bcrypt is supported on all versions of Python that Django
supports
The display of the ReadOnlyPasswordHashWidget has also been improved to
distinguish empty/unusable password from erroneous password.
Fixed#18453 also.
Thanks danielr and Leo for the reports and Moritz Sichert for the
initial patch.
* Renamed smart_unicode to smart_text (but kept the old name under
Python 2 for backwards compatibility).
* Renamed smart_str to smart_bytes.
* Re-introduced smart_str as an alias for smart_text under Python 3
and smart_bytes under Python 2 (which is backwards compatible).
Thus smart_str always returns a str objects.
* Used the new smart_str in a few places where both Python 2 and 3
want a str.
Adds a salted MD5 hasher for backwards compatibility.
Thanks gunnar@g10f.de for the report.
Also fixes a bug preventing the hasher tests from being run during
contrib tests.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@17604 bcc190cf-cafb-0310-a4f2-bffc1f526a37