[issue6089] str.format raises SystemError

[Eric Smith]

Eric Smith <eric at trueblade.com> added the comment:

Any character after a ']' other than '.' or '[' triggers this bug:

>>> '{0[0]x}'.format([None])
Assertion failed: (0), function FieldNameIterator_next, file
Objects/stringlib/string_format.h, line 379.

I'll fix it this weekend.

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assignee:  -> eric.smith
versions:  -Python 3.2

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue6089>
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