How to fix absent Python autocompletion on object instances in Vim?

Question

I have found a strange behavior in Vim when I attempt to use autocompletion on objects. If I instantiate the objects on a module level, the Vim autocompletion will work on the i

Answer 1

Expanding the @BergmannF answer. If you don't want the rope's completion to select the first entry just append (go to previous entry -> no entry) to the imap command:

imap  =RopeCodeAssistInsertMode()