Daniel Stutzbach <dan...@stutzbachenterprises.com> added the comment:
Oops. Somehow deleted a linefeed in there. The example should read:
x = MySimpleMapping(red=5)
y = x.keys()
z = x.keys() | {'orange'}
x['blue'] = 7
print(list(z))
print(list(z))
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue9214>
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