[Python-checkins] bpo-23460: Fix documentation for decimal string :g formatting (GH-11850)
Julien Palard
webhook-mailer at python.org
Wed Sep 11 09:59:41 EDT 2019
https://github.com/python/cpython/commit/1660a61a105bcd62e2dfa77885959a8992e9f14e
commit: 1660a61a105bcd62e2dfa77885959a8992e9f14e
branch: master
author: Brennan D Baraban <34765317+bdbaraban at users.noreply.github.com>
committer: Julien Palard <julien at palard.fr>
date: 2019-09-11T15:59:37+02:00
summary:
bpo-23460: Fix documentation for decimal string :g formatting (GH-11850)
files:
A Misc/NEWS.d/next/Documentation/2019-02-14-07-12-48.bpo-23460.Iqiqtm.rst
M Doc/library/string.rst
diff --git a/Doc/library/string.rst b/Doc/library/string.rst
index af8b9b358cc3..af52af0482c4 100644
--- a/Doc/library/string.rst
+++ b/Doc/library/string.rst
@@ -500,9 +500,10 @@ 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 |
diff --git a/Misc/NEWS.d/next/Documentation/2019-02-14-07-12-48.bpo-23460.Iqiqtm.rst b/Misc/NEWS.d/next/Documentation/2019-02-14-07-12-48.bpo-23460.Iqiqtm.rst
new file mode 100644
index 000000000000..4674d551d379
--- /dev/null
+++ b/Misc/NEWS.d/next/Documentation/2019-02-14-07-12-48.bpo-23460.Iqiqtm.rst
@@ -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.
\ No newline at end of file
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