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[3.6] bpo-31330: Clarify that RawTextHelpFormatter collapses repeated newlines. (GH-3272) (GH-3429) 

Also provide a solution if the user wants to keep multiple blank lines.
(cherry picked from commit 397c467c49)
This commit is contained in:
Miss Islington (bot) 2017-09-07 14:18:45 -07:00 committed by R. David Murray
parent 76006f285a
commit e89b35dd2b
1 changed files with 3 additions and 1 deletions
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Doc/library/argparse.rst
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@ -426,7 +426,9 @@ should not be line-wrapped::
-h, --help show this help message and exit
:class:`RawTextHelpFormatter` maintains whitespace for all sorts of help text,
including argument descriptions.
including argument descriptions. However, multiple new lines are replaced with
one. If you wish to preserve multiple blank lines, add spaces between the
newlines.
:class:`ArgumentDefaultsHelpFormatter` automatically adds information about
default values to each of the argument help messages::