The PyDance ebuild uses a messed up method of building pydance, when a perfectly good method is already provided, and now the developers have intentionally messed up the ebuild method. Some functionality is broken due to this (songs in ~/.pydance/songs don't work...)
learn how to be less of an asshole next time you file a bug a simple 'the install phase is missing the 2nd arguement when calling newins thus the cfg file is not installed' would have sufficed