[Jython-bugs] [ jython-Bugs-1768988 ] isinstance, issubclass allow a StackOverflow

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Bugs item #1768988, was opened at 2007-08-07 00:40
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Category: Core
Group: test failure causes
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Charles Groves (cgroves)
Assigned to: Nobody/Anonymous (nobody)
Summary: isinstance, issubclass allow a StackOverflow

Initial Comment:
If given a tuple, isinstance and issubclass call themselves with each item of the tuple.  If given a nested tuple, they can recurse into themselves many times.  test_isinstance checks that a deeply nested tuple doesn't cause a stack blowup.  Jython's isinstance and issubclass don't check how many times they've recursed so this causes a StackOverflow.  This test is commented out for now as explained in http://wiki.python.org/jython/JythonDeveloperGuide/VersionTransitionTestExclusions

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