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docs: clearly document that ":#X" string formatting results in "0X..." (GH-25941)

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* clearly document that ":#X" string formatting results in "0X..."

* put back the "serial comma"
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Tal Einat 2021-05-06 22:27:29 +03:00 • committed by GitHub
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Doc/library/string.rst
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@ -386,8 +386,8 @@ The ``'#'`` option causes the "alternate form" to be used for the
conversion. The alternate form is defined differently for different conversion. The alternate form is defined differently for different
types. This option is only valid for integer, float and complex types. This option is only valid for integer, float and complex
types. For integers, when binary, octal, or hexadecimal output types. For integers, when binary, octal, or hexadecimal output
is used, this option adds the prefix respective ``'0b'``, ``'0o'``, or is used, this option adds the respective prefix ``'0b'``, ``'0o'``,
``'0x'`` to the output value. For float and complex the ``'0x'``, or ``'0X'`` to the output value. For float and complex the
alternate form causes the result of the conversion to always contain a alternate form causes the result of the conversion to always contain a
decimal-point character, even if no digits follow it. Normally, a decimal-point character, even if no digits follow it. Normally, a
decimal-point character appears in the result of these conversions decimal-point character appears in the result of these conversions
@ -467,6 +467,8 @@ The available integer presentation types are:
+---------+----------------------------------------------------------+ +---------+----------------------------------------------------------+
| ``'X'`` | Hex format. Outputs the number in base 16, using | | ``'X'`` | Hex format. Outputs the number in base 16, using |
| | upper-case letters for the digits above 9. | | | upper-case letters for the digits above 9. |
| | In case ``'#'`` is specified, the prefix ``'0x'`` will |
| | be upper-cased to ``'0X'`` as well. |
+---------+----------------------------------------------------------+ +---------+----------------------------------------------------------+
| ``'n'`` | Number. This is the same as ``'d'``, except that it uses | | ``'n'`` | Number. This is the same as ``'d'``, except that it uses |
| | the current locale setting to insert the appropriate | | | the current locale setting to insert the appropriate |