#23664: bool evaluation on an OrderedSet gives different results in Py2 and Py3
----------------------------+---------------------------------
Reporter: tchaumeny | Owner: nobody
Type: Bug | Status: new
Component: Utilities | Version: master
Severity: Normal | Keywords: Python3, OrderedSet
Triage Stage: Unreviewed | Has patch: 1
Easy pickings: 0 | UI/UX: 0
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`bool(OrderedSet())` evaluates to `False` in Python 2, `True` in Python 3
because `__bool__` is not defined (but `__nonzero__` is).
I searched the codebase for similar cases and found that it was the same
with `QuerySet`, though this does not have consequences as
`QuerySet.__len__` is defined and `bool` will use that in Py3.
The PR addresses both classes for consistency.
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Ticket URL: <https://code.djangoproject.com/ticket/23664>
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