- Don't crash in the case where a superclass is a string instead of a pyclbr.Class object; this can happen when the superclass is unrecognizable (to pyclbr), e.g. when module renaming is used.
- Don't crash in the case where a superclass is a string instead of a
pyclbr.Class object; this can happen when the superclass is
unrecognizable (to pyclbr), e.g. when module renaming is used.

- Show a watch cursor when calling pyclbr (since it may take a while
recursively parsing imported modules!).

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator