[__init__]

Please don't suggest people use from foo import *; it pollutes the global namespace and can break things without you knowing why really easily.
It's fine to support select functions/modules/classes/whatever (from foo import bar, baz, qux), but import * is just tacky.

I agree with this, unless the classes are prefixed with something recognizable for example all PyQt classes start with the letter 'Q'. Also it's much easier to type

Code

app = QApplication(sys.argv)

than

Code

app = PyQt4.QtCore.QApplication(sys.argv)