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| author | Eric V. Smith <eric@trueblade.com> | 2016-09-09 23:06:47 -0400 |
|---|---|---|
| committer | Eric V. Smith <eric@trueblade.com> | 2016-09-09 23:06:47 -0400 |
| commit | 89e1b1aae0775341735de6bc5e97b3c1e9cea0fa (patch) | |
| tree | cadcc5860ce497d17783b2af9901d9bb71ee1820 /Doc/library/string.rst | |
| parent | 37d398ebd1b177001df231b9bba17429ac61ff12 (diff) | |
| download | cpython-git-89e1b1aae0775341735de6bc5e97b3c1e9cea0fa.tar.gz | |
Issue 27080: PEP 515: add '_' formatting option.
Diffstat (limited to 'Doc/library/string.rst')
| -rw-r--r-- | Doc/library/string.rst | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/Doc/library/string.rst b/Doc/library/string.rst index c421c72d75..b5d5ed1901 100644 --- a/Doc/library/string.rst +++ b/Doc/library/string.rst @@ -300,7 +300,7 @@ non-empty format string typically modifies the result. The general form of a *standard format specifier* is: .. productionlist:: sf - format_spec: [[`fill`]`align`][`sign`][#][0][`width`][,][.`precision`][`type`] + format_spec: [[`fill`]`align`][`sign`][#][0][`width`][,][_][.`precision`][`type`] fill: <any character> align: "<" | ">" | "=" | "^" sign: "+" | "-" | " " @@ -378,6 +378,16 @@ instead. .. versionchanged:: 3.1 Added the ``','`` option (see also :pep:`378`). +The ``'_'`` option signals the use of an underscore for a thousands +separator for floating point presentation types and for integer +presentation type ``'d'``. For integer presentation types ``'b'``, +``'o'``, ``'x'``, and ``'X'``, underscores will be inserted every 4 +digits. For other presentation types, specifying this option is an +error. + +.. versionchanged:: 3.6 + Added the ``'_'`` option (see also :pep:`515`). + *width* is a decimal integer defining the minimum field width. If not specified, then the field width will be determined by the content. |