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Improve the F-strings and format specifier documentation (GH-4931) (GH-4933) 

Mention that the format-specifier mini language in f-strings
is the same one used by str.format.
(cherry picked from commit f4e21a2a72)
This commit is contained in:
Miss Islington (bot) 2017-12-19 13:09:19 -08:00 committed by Mariatta
parent dc5770b161
commit 75d1ca26b0
1 changed files with 5 additions and 4 deletions
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9
Doc/reference/lexical_analysis.rst
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@ -654,10 +654,11 @@ expression or conversion result. An empty string is passed when the
format specifier is omitted. The formatted result is then included in
the final value of the whole string.
Top-level format specifiers may include nested replacement fields.
These nested fields may include their own conversion fields and
:ref:`format specifiers <formatspec>`, but may not include more
deeply-nested replacement fields.
Top-level format specifiers may include nested replacement fields. These nested
fields may include their own conversion fields and :ref:`format specifiers
<formatspec>`, but may not include more deeply-nested replacement fields. The
:ref:`format specifier mini-language <formatspec>` is the same as that used by
the string .format() method.
Formatted string literals may be concatenated, but replacement fields
cannot be split across literals.