SynWrite plugin - auto-completion for Python lexer, based on Jedi library. Full info (how to install, how to use) is in Readme.html.

SynCodeIntel uses the same DLL binary, only renamed to SynCodeIntel.dll.

SynJedi: http://uvviewsoft.com/synjedi/ SynCodeIntel: http://uvviewsoft.com/syncodeintel/