Add source_address to HTTP[S]Connection and HTTP[S]ConnectionPool to specify the address to bind to when making requests. source_address can be a string, like '127.0.0.1', or a (host, port) 2-tuple like ('127.0.0.1', 1337).
Comments.
Add a shorthand python version comment to exclude_lines: '# Py\d.*'.
Add python version comments to exclude lines from Python 2.6 tests.
Merge pull request #1 from gruns/master

Support source_address, with tests.