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bpo-23460: Fix documentation for decimal string :g formatting #11850

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Sep 11, 2019
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bpo-23460: Fix documentation for decimal string :g formatting #11850

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bpo-23460: Properly document decimal string formatting for :g exponen…
234761 Feb 14, 2019
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📜🤖 Added by blurb_it.
blurb-it[bot] Feb 14, 2019
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7 changes: 4 additions & 3 deletions Doc/library/string.rst
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Expand Up @@ -501,9 +501,10 @@ The available presentation types for floating point and decimal values are:
| | |
| | The precise rules are as follows: suppose that the |
| | result formatted with presentation type ``'e'`` and |
| | precision ``p-1`` would have exponent ``exp``. Then |
| | if ``-4 <= exp < p``, the number is formatted |
| | with presentation type ``'f'`` and precision |
| | precision ``p-1`` would have exponent ``exp``. Then, |
| | if ``m <= exp < p``, where ``m`` is -4 for floats and -6 |
| | for :class:`Decimals <decimal.Decimal>`, the number is |
| | formatted with presentation type ``'f'`` and precision |
| | ``p-1-exp``. Otherwise, the number is formatted |
| | with presentation type ``'e'`` and precision ``p-1``. |
| | In both cases insignificant trailing zeros are removed |
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Documentation/2019-02-14-07-12-48.bpo-23460.Iqiqtm.rst
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@@ -0,0 +1 @@
The documentation for decimal string formatting using the `:g` specifier has been updated to reflect the correct exponential notation cutoff point. Original patch contributed by Tuomas Suutari.