denisenkom/pytds — pull request #29 by VFLashM (2014-05-01 17:44:22+00:00)
Title: Passing None as a database used to cause a crash

Server/database/user/password now can accept None as a value
Username/password already supported that, now database/server support that as well.

Default argument values changed to None to remove duplication and ensure that default value specified only once.