py.user <port...@yandex.ru> added the comment:
R. David Murray wrote:
> Putting nothing between the {}'s is an empty format string.
this is an empty replacement field
here:
http://docs.python.org/py3k/library/string.html#format-string-syntax
the definition of format string:
"Format strings contain “replacement fields” surrounded by curly braces {}.
Anything that is not contained in braces is considered literal text, which is
copied unchanged to the output."
"The grammar for a replacement field is as follows:"
replacement_field ::= "{" [field_name] ["!" conversion] [":" format_spec] "}"
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue13790>
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