[issue17331] namedtuple raises a SyntaxError instead of ValueError on invalid identifier

[Roundup Robot]

Roundup Robot added the comment:

New changeset 80bcc98bf939 by Raymond Hettinger in branch '3.3':
Issue #17331:  Use isidentifier() instead of isalnum() to check for valid identifiers.
http://hg.python.org/cpython/rev/80bcc98bf939

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nosy: +python-dev

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