[issue25973] Segmentation fault with nonlocal and two underscores

[Konstantin Enchant]

Konstantin Enchant added the comment:

Yes. Case:

# -------------------
class A:
    def f(self):
        nonlocal __x
# -------------------

must raises SyntaxError like case:

# -------------------
class A:
    def f(self):
        nonlocal x

>> SyntaxError: no binding for nonlocal 'x' found
# -------------------

but doesn't crash with SegFault as it is now.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue25973>
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