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| author | Anthony Sottile <asottile@umich.edu> | 2017-09-20 14:35:27 -0700 |
|---|---|---|
| committer | Éric Araujo <merwok@users.noreply.github.com> | 2017-09-20 17:35:27 -0400 |
| commit | aaf6fc0982c916cb71d9e0afcd7dda4ba495793b (patch) | |
| tree | 09cb0078fade182a8be0a108bb50b57a71156bd9 /Lib/argparse.py | |
| parent | 19e4d9346db7fb65845b98a9cb9caacaaac8a81a (diff) | |
| download | cpython-git-aaf6fc0982c916cb71d9e0afcd7dda4ba495793b.tar.gz | |
bpo-26510: make argparse subparsers required by default (#3027)
This fixes a regression from Python 2. To get optional subparsers,
use the new parameter ``add_subparsers(required=False)``.
Patch by Anthony Sottile.
Diffstat (limited to 'Lib/argparse.py')
| -rw-r--r-- | Lib/argparse.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Lib/argparse.py b/Lib/argparse.py index d59e645203..98bbed0e50 100644 --- a/Lib/argparse.py +++ b/Lib/argparse.py @@ -1066,6 +1066,7 @@ class _SubParsersAction(Action): prog, parser_class, dest=SUPPRESS, + required=True, help=None, metavar=None): @@ -1079,6 +1080,7 @@ class _SubParsersAction(Action): dest=dest, nargs=PARSER, choices=self._name_parser_map, + required=required, help=help, metavar=metavar) |