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Author georg.brandl
Recipients benjamin.peterson, georg.brandl, thread13
Date 2012-04-26.06:00:10
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Message-id <1335420010.9.0.418298693688.issue14671@psf.upfronthosting.co.za>
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Content 
This is a result of how old-style classes are implemented.

If you look at type(Old()), you can see that it isn't Old, but "instance".

(And "instance" is a subclass of object again.)

"issubclass" for old-style classes doesn't check type(o) but o.__class__, which are different: the former is "instance" and the latter your class.  That is one reason we removed old-style classes in Python 3...
History
Date User Action Args
2012-04-26 06:00:10georg.brandlsetrecipients: + georg.brandl, benjamin.peterson, thread13
2012-04-26 06:00:10georg.brandlsetmessageid: <1335420010.9.0.418298693688.issue14671@psf.upfronthosting.co.za>
2012-04-26 06:00:10georg.brandllinkissue14671 messages
2012-04-26 06:00:10georg.brandlcreate