From 55c206ab2f2c8f0385dcc71054b3b42c3958b896 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Zbigniew=20J=C3=84=E2=84=A2drzejewski-Szmek?= Date: Sun, 2 Sep 2012 14:59:19 +0200 Subject: Fix bug with argparse.Parser.parse_args(*args) --- Lib/argparse.py | 5 ++++- Lib/test/test_argparse.py | 18 ++++++++++++++++++ 2 files changed, 22 insertions(+), 1 deletion(-) diff --git a/Lib/argparse.py b/Lib/argparse.py index cc3e374..67bbef2 100644 --- a/Lib/argparse.py +++ b/Lib/argparse.py @@ -1709,9 +1709,12 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer): return args def parse_known_args(self, args=None, namespace=None): - # args default to the system args if args is None: + # args default to the system args args = _sys.argv[1:] + else: + # make sure that args are mutable + args = list(args) # default Namespace built from parser defaults if namespace is None: diff --git a/Lib/test/test_argparse.py b/Lib/test/test_argparse.py index fe930a3..2e6584f 100644 --- a/Lib/test/test_argparse.py +++ b/Lib/test/test_argparse.py @@ -4565,6 +4565,24 @@ class TestMessageContentError(TestCase): class TestParseKnownArgs(TestCase): + def test_arguments_tuple(self): + parser = argparse.ArgumentParser() + parser.parse_args(()) + + def test_arguments_list(self): + parser = argparse.ArgumentParser() + parser.parse_args([]) + + def test_arguments_tuple_positional(self): + parser = argparse.ArgumentParser() + parser.add_argument('x') + parser.parse_args(('x',)) + + def test_arguments_list_positional(self): + parser = argparse.ArgumentParser() + parser.add_argument('x') + parser.parse_args(['x']) + def test_optionals(self): parser = argparse.ArgumentParser() parser.add_argument('--foo') -- cgit v0.12