Describes the cause and action for error messages.
issubclass not working
python-openstackclient issubclass() arg 1 must be a class
isinstance() and issubclass() return conflicting results
Why do I get False when using issubclass in this way?
usage of issubclass
How do you make issubclass work - Python - Bytes
Issue 33018: Improve issubclass() error checking and message ...
Issue 22540: speed up isinstance and issubclass for ...
Issue 12029: Allow catching virtual subclasses in ...
Issue 7796: No way to find out if an object is an ...