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gh-106318: Add example for str.format() #137018

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6 changes: 5 additions & 1 deletion Doc/library/stdtypes.rst
Original file line number Diff line number Diff line change
Expand Up @@ -1927,10 +1927,14 @@ expression support in the :mod:`re` module).
``{}``. Each replacement field contains either the numeric index of a
positional argument, or the name of a keyword argument. Returns a copy of
the string where each replacement field is replaced with the string value of
the corresponding argument.
the corresponding argument. For example:

.. doctest::

>>> "The sum of 1 + 2 is {0}".format(1+2)
'The sum of 1 + 2 is 3'
>>> "{1} expects the {0} Inquisition!".format("Spanish", "Nobody")
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nice addition! - would it be worth while adding an example with keyword arguments as well ? e.g "The sum of 1 + 2 is {answer}".format(answer=1+2)

'Nobody expects the Spanish Inquisition!'

See :ref:`formatstrings` for a description of the various formatting options
that can be specified in format strings.
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