#18578: Python 3 preparation: Special function __div__() is used no more in Py3
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Reporter: wluebbe | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.8
Component: misc | Keywords: python3
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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There (among others) the three special functions {{{__div__()}}},
{{{__truediv__()}}} and {{{__floordiv__()}}}.
They are invoked by the division operators {{{/}}} and {{{//}}}:
* In Py2: {{{__div__()}}} and {{{__floordiv__()}}} are called.
* In Py2 (when {{{from __future__ import division}}} is in effect):
{{{__truediv__()}}} and {{{__floordiv__()}}} are called.
* In Py3: {{{__truediv__()}}} and {{{__floordiv__()}}} are called.
So in the last two cases {{{__div__()}}} is not called for {{{/}}} but
{{{__truediv__()}}}.
If {{{__truediv__()}}} is not available an exception is thrown.
Therefor classes defining {{{__div__()}}} must be checked that they also
work in the last two cases! The related special function {{{__idiv__()}}}
is effected too.
The ticket is tracked as a dependency of #15995.
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Ticket URL: <http://trac.sagemath.org/ticket/18578>
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