[issue10242] unittest's assertItemsEqual() method makes too many assumptions about its input

[Raymond Hettinger]

Raymond Hettinger <rhettinger at users.sourceforge.net> added the comment:

> I'd be inclined to insert a check that falls back 
> to the "unorderable_list_difference" approach in 
> the case where "expected != sorted(reversed(expected))".

Too fragile and subtle.  The method need to be absolutely straight-forward.

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<http://bugs.python.org/issue10242>
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