File: //opt/alt/python35/lib64/python3.5/idlelib/__pycache__/ClassBrowser.cpython-35.opt-1.pyc
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XXX TO DO:
- reparse when source changed (maybe just a button would be OK?)
    (or recheck on window popup)
- add popup menu with more options (e.g. doc strings, base classes, imports)
- show function argument list? (have to do pattern matching on source)
- should the classes and methods lists also be in the module's menu bar?
- add base classes to class browser tree
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