[issue13790] In str.format an incorrect error message for list, tuple, dict, set

[R. David Murray]

R. David Murray <rdmurray at bitdance.com> added the comment:

"an empty format string" is exactly what I was talking about.  Putting nothing between the {}'s is an empty format string.  I can't think of any way to make that wording clearer.

The format docs should not contains examples of the repr of all possible python objects.  The examples of what tuples and lists and dicts &c look like are shown in the docs for those objects.

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<http://bugs.python.org/issue13790>
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