[issue13811] In str.format an incorrect alignment option doesn't make fill char and onself absent

[Stefan Krah]

Stefan Krah <stefan-usenet at bytereef.org> added the comment:

py.user: The format string must always match the grammar, which is just
above the paragraph that you quoted: 

   [[fill]align][sign][#][0][width][,][.precision][type]


Thus, if fill and align are absent, it does not mean that you can add
arbitrary characters like "xx".



I think the docs are crystal clear; I also prefer Eric's suggestion
for a new error message.

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nosy: +skrah

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