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Issue #15660: Further clarify 0 prefix for width specifier in formats.

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Terry Jan Reedy 2016-03-20 21:05:57 -04:00
parent e431d3c9aa
commit 4902c46bff
1 changed files with 4 additions and 2 deletions
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6
Doc/library/string.rst
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@ -327,7 +327,8 @@ The meaning of the various alignment options is as follows:
| ``'='`` | Forces the padding to be placed after the sign (if any) | | ``'='`` | Forces the padding to be placed after the sign (if any) |
| | but before the digits. This is used for printing fields | | | but before the digits. This is used for printing fields |
| | in the form '+000000120'. This alignment option is only | | | in the form '+000000120'. This alignment option is only |
| | valid for numeric types. | | | valid for numeric types. It becomes the default when '0'|
| | immediately precedes the field width. |
+---------+----------------------------------------------------------+ +---------+----------------------------------------------------------+
| ``'^'`` | Forces the field to be centered within the available | | ``'^'`` | Forces the field to be centered within the available |
| | space. | | | space. |
@ -376,7 +377,8 @@ instead.
*width* is a decimal integer defining the minimum field width. If not *width* is a decimal integer defining the minimum field width. If not
specified, then the field width will be determined by the content. specified, then the field width will be determined by the content.
Preceding the *width* field by a zero (``'0'``) character enables When no explicit alignment is given, preceding the *width* field by a zero
(``'0'``) character enables
sign-aware zero-padding for numeric types. This is equivalent to a *fill* sign-aware zero-padding for numeric types. This is equivalent to a *fill*
character of ``'0'`` with an *alignment* type of ``'='``. character of ``'0'`` with an *alignment* type of ``'='``.