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bpo-17232: Clarify docs for -O and -OO command line options (#5839)

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The 'optimization' is for space in the executable file, not for run time.
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Cheryl Sabella 2018-02-24 22:04:40 -05:00 • committed by Terry Jan Reedy
parent 6cdb7954b0
commit 186b606d8a
4 changed files with 23 additions and 6 deletions
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Doc/using/cmdline.rst
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@ -260,12 +260,23 @@ Miscellaneous options
.. cmdoption:: -O
Turn on basic optimizations. See also :envvar:`PYTHONOPTIMIZE`.
Remove assert statements and any code conditional on the value of
:const:`__debug__`. Augment the filename for compiled
(:term:`bytecode`) files by adding ``.opt-1`` before the ``.pyc``
extension (see :pep:`488`). See also :envvar:`PYTHONOPTIMIZE`.
.. versionchanged:: 3.5
Modify ``.pyc`` filenames according to :pep:`488`.
.. cmdoption:: -OO
Discard docstrings in addition to the :option:`-O` optimizations.
Do :option:`-O` and also discard docstrings. Augment the filename
for compiled (:term:`bytecode`) files by adding ``.opt-2`` before the
``.pyc`` extension (see :pep:`488`).
.. versionchanged:: 3.5
Modify ``.pyc`` filenames according to :pep:`488`.
.. cmdoption:: -q