#20062: Make _floordiv_() for power series a deprecated alias for _div_()
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Reporter: pbruin | Owner:
Type: task | Status: needs_review
Priority: minor | Milestone: sage-7.1
Component: algebra | Resolution:
Keywords: | Merged in:
Authors: Peter Bruin | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/pbruin/20062-PowerSeries_floordiv| e9719f7399ffab100407a360c16fe0596e7f2689
Dependencies: | Stopgaps:
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Comment (by bruno):
A proposal along the line of my previous comment would be as follows:
{{{#!python
cpdef RingElement _floordiv_(self, RingElement denom):
"""
...
"""
from sage.misc.superseded import deprecation
try:
deprecation(20062, "the operator // now performs a euclidean
division for power series over fields, use / instead to perform a
(true) division")
return self.quo_rem(denom)[0]
except AttributeError, NotImplementedError:
deprecation(20062, "the operator // is deprecated for power
series over non-fields, use / instead")
return self._div_(denom)
}}}
Testing this code, I get a deprecation warning about deprecation warnings
so it is probably not the right way to write this:
{{{#!python
/opt/sage/local/lib/python2.7/site-packages/IPython/core/formatters.py:92:
DeprecationWarning: DisplayFormatter._ipython_display_formatter_default is
deprecated: use @default decorator instead.
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/20062#comment:11>
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