[issue12546] str.format cannot fill with \x00 char

[Eric V. Smith]

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

\x00 is used as a flag internally meaning "use the default fill character". That's clearly a bug. I'll look at fixing it.

I think there are other places in the built in __format__ functions where special values are used instead of flags. I'll review those as well.

Thanks for the report!

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assignee:  -> eric.smith
components: +Interpreter Core -Library (Lib)
stage:  -> needs patch
versions: +Python 3.2, Python 3.3

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