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bpo-40419: timeit CLI docs now mention 1,2,5,10,... trials instead of powers of 10 (GH-19752)

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Sander 2020-05-02 18:12:05 +02:00 committed by GitHub
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2 changed files with 4 additions and 2 deletions
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3
Doc/library/timeit.rst
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@ -251,7 +251,8 @@ quotes and using leading spaces. Multiple :option:`-s` options are treated
similarly.
If :option:`-n` is not given, a suitable number of loops is calculated by trying
successive powers of 10 until the total time is at least 0.2 seconds.
increasing numbers from the sequence 1, 2, 5, 10, 20, 50, ... until the total
time is at least 0.2 seconds.
:func:`default_timer` measurements can be affected by other programs running on
the same machine, so the best thing to do when accurate timing is necessary is

3
Lib/timeit.py
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@ -29,7 +29,8 @@ argument in quotes and using leading spaces. Multiple -s options are
treated similarly.
If -n is not given, a suitable number of loops is calculated by trying
successive powers of 10 until the total time is at least 0.2 seconds.
increasing numbers from the sequence 1, 2, 5, 10, 20, 50, ... until the
total time is at least 0.2 seconds.
Note: there is a certain baseline overhead associated with executing a
pass statement. It differs between versions. The code here doesn't try