diff --git a/Lib/argparse.py b/Lib/argparse.py index 9da59e3c03d..c12a16d53fe 100644 --- a/Lib/argparse.py +++ b/Lib/argparse.py @@ -987,7 +987,7 @@ class _VersionAction(Action): version=None, dest=SUPPRESS, default=SUPPRESS, - help=None): + help="show program's version number and exit"): super(_VersionAction, self).__init__( option_strings=option_strings, dest=dest, diff --git a/Lib/test/test_argparse.py b/Lib/test/test_argparse.py index f13c6222679..94cd3d39470 100644 --- a/Lib/test/test_argparse.py +++ b/Lib/test/test_argparse.py @@ -3688,6 +3688,25 @@ class TestHelpArgumentDefaults(HelpTestCase): ''' version = '' +class TestHelpVersionAction(HelpTestCase): + """Test the default help for the version action""" + + parser_signature = Sig(prog='PROG', description='description') + argument_signatures = [Sig('-V', '--version', action='version', version='3.6')] + argument_group_signatures = [] + usage = '''\ + usage: PROG [-h] [-V] + ''' + help = usage + '''\ + + description + + optional arguments: + -h, --help show this help message and exit + -V, --version show program's version number and exit + ''' + version = '' + # ===================================== # Optional/Positional constructor tests # =====================================