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-rw-r--r--python2.7/patches/issue15847.diff47
1 files changed, 47 insertions, 0 deletions
diff --git a/python2.7/patches/issue15847.diff b/python2.7/patches/issue15847.diff
new file mode 100644
index 0000000..a4af8b8
--- /dev/null
+++ b/python2.7/patches/issue15847.diff
@@ -0,0 +1,47 @@
+# DP: Fix issue #15847: allow args to be a tuple in parse_args.
+
+diff -r edbf37ace03c -r a2147bbf7868 Lib/argparse.py
+--- a/Lib/argparse.py Fri Sep 07 23:49:07 2012 +0200
++++ b/Lib/argparse.py Sat Sep 08 12:15:25 2012 -0400
+@@ -1692,9 +1692,12 @@
+ 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 -r edbf37ace03c -r a2147bbf7868 Lib/test/test_argparse.py
+--- a/Lib/test/test_argparse.py Fri Sep 07 23:49:07 2012 +0200
++++ b/Lib/test/test_argparse.py Sat Sep 08 12:15:25 2012 -0400
+@@ -4486,6 +4486,24 @@
+
+ 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')