Florent Xicluna added the comment:
This is consistent:
>>> '¹'.isnumeric(), '¹'.isdigit(), '¹'.isdecimal()
(True, True, False)
>>> unicodedata.numeric('¹')
1.0
>>> unicodedata.digit('¹')
1
>>> unicodedata.decimal('¹')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: not a decimal
>>>
Changing the title to focus on the issue with collections.namedtuple.
----------
components: +Library (Lib)
title: Fix str methods for detecting digits with unicode -> namedtuple raises a
SyntaxError instead of ValueError on invalid identifier
versions: +Python 3.4
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<http://bugs.python.org/issue17331>
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