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-rw-r--r--Doc/library/shlex.rst4
1 files changed, 3 insertions, 1 deletions
diff --git a/Doc/library/shlex.rst b/Doc/library/shlex.rst
index 4926f04d42..55012f80e8 100644
--- a/Doc/library/shlex.rst
+++ b/Doc/library/shlex.rst
@@ -411,4 +411,6 @@ which characters constitute punctuation. For example::
>>> list(s)
['~/a', '&&', 'b-c', '--color=auto', '||', 'd', '*.py?']
-
+For best effect, ``punctuation_chars`` should be set in conjunction with
+``posix=True``. (Note that ``posix=False`` is the default for
+:class:`~shlex.shlex`.)