#14644: Unable to coerce (<type 'unicode'>) to Rational
-------------------------------------+-------------------------------------
Reporter: pdehaye | Owner: robertwb
Type: defect | Status: needs_review
Priority: major | Milestone: sage-7.3
Component: coercion | Resolution:
Keywords: | Merged in:
Authors: Jeroen Demeyer | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jdemeyer/unable_to_coerce___type__unicode____to_rational|
174738257ff2e6b21fb100cfa25824a1666943a4
Dependencies: | Stopgaps:
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Comment (by vdelecroix):
There is no possible way to make Python2 and 3 compatible code here:
|| ||= Python2 =||= Python3 =||
||= common base =|| `basestring` || ? ||
||= bytes =|| `str` or `bytes` || `unicode` ||
||= unicode =|| `bytes` || `str` ||
A 2/3 compatible way is to add (do not know if it applies to Cython)
{{{
from past.builtins import basestring
}}}
Or alternatively use the `str` available in `builtins`
{{{
sage: from builtins import str
sage: isinstance('toto', str)
False
sage: isinstance(u'toto', str)
True
}}}
see http://python-future.org/compatible_idioms.html
--
Ticket URL: <https://trac.sagemath.org/ticket/14644#comment:8>
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