mirror of https://github.com/python/cpython
bpo-34712: Fix style in examples in "Input and Output" (GH-9361)
A couple of fixes here to make this more PEP-8: * Avoid multiple statements on one line with `;` statement separator -- this is very rare in Python and is "generally discouraged" in PEP 8 (and if used, per PEP 8 there shouldn't be a space before the `;`) * Add output for the first "Formatted String Literals" example. (Side note: are the doctests for this being run? If so, why didn't it fail?) * Avoid space before `!r`. I have generally not seen spaces before the `!`, and this also matches the style used in the docs here: https://docs.python.org/3/library/string.html#format-string-syntax https://bugs.python.org/issue34712
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@ -29,7 +29,8 @@ printing space-separated values. There are several ways to format output.
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::
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>>> year = 2016 ; event = 'Referendum'
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>>> year = 2016
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>>> event = 'Referendum'
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>>> f'Results of the {year} {event}'
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'Results of the 2016 Referendum'
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@ -40,8 +41,9 @@ printing space-separated values. There are several ways to format output.
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::
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>>> yes_votes = 42_572_654 ; no_votes = 43_132_495
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>>> percentage = yes_votes/(yes_votes+no_votes)
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>>> yes_votes = 42_572_654
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>>> no_votes = 43_132_495
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>>> percentage = yes_votes / (yes_votes + no_votes)
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>>> '{:-9} YES votes {:2.2%}'.format(yes_votes, percentage)
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' 42572654 YES votes 49.67%'
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@ -108,6 +110,7 @@ three places after the decimal::
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>>> import math
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>>> print(f'The value of pi is approximately {math.pi:.3f}.')
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The value of pi is approximately 3.142.
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Passing an integer after the ``':'`` will cause that field to be a minimum
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number of characters wide. This is useful for making columns line up. ::
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@ -127,7 +130,7 @@ applies :func:`repr`::
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>>> animals = 'eels'
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>>> print(f'My hovercraft is full of {animals}.')
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My hovercraft is full of eels.
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>>> print(f'My hovercraft is full of {animals !r}.')
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>>> print(f'My hovercraft is full of {animals!r}.')
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My hovercraft is full of 'eels'.
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For a reference on these format specifications, see
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