17.3.0
Move package into src
Convert test_rand to use pytest-style tests (#563)
Drop this, it's no good.
Simplify test code (#679)
Add an informative __main__.py (#620)
Fix another test to not hardcode TLSv1 (#683)
Convert a few more small test classes to be pytest-style (#585)
Rip out the last vestages of unittest from the test suite (#599)