diff options
| -rw-r--r-- | Lib/argparse.py | 2 | ||||
| -rw-r--r-- | Lib/test/test_argparse.py | 1 | ||||
| -rw-r--r-- | Misc/NEWS | 2 |
3 files changed, 4 insertions, 1 deletions
diff --git a/Lib/argparse.py b/Lib/argparse.py index 7fa3712..74c456f 100644 --- a/Lib/argparse.py +++ b/Lib/argparse.py @@ -1979,7 +1979,7 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer): for arg_string in arg_strings: # for regular arguments, just add them back into the list - if arg_string[0] not in self.fromfile_prefix_chars: + if not arg_string or arg_string[0] not in self.fromfile_prefix_chars: new_arg_strings.append(arg_string) # replace arguments referencing files with the file content diff --git a/Lib/test/test_argparse.py b/Lib/test/test_argparse.py index e69cc40..76271a3 100644 --- a/Lib/test/test_argparse.py +++ b/Lib/test/test_argparse.py @@ -1372,6 +1372,7 @@ class TestArgumentsFromFile(TempDirMixin, ParserTestCase): ('X @hello', NS(a=None, x='X', y=['hello world!'])), ('-a B @recursive Y Z', NS(a='A', x='hello world!', y=['Y', 'Z'])), ('X @recursive Z -a B', NS(a='B', x='X', y=['hello world!', 'Z'])), + (["-a", "", "X", "Y"], NS(a='', x='X', y=['Y'])), ] @@ -52,6 +52,8 @@ Core and Builtins Library ------- +- Issue #12353: argparse now correctly handles null argument values. + - Issues #10017 and #14998: Fix TypeError using pprint on dictionaries with user-defined types as keys or other unorderable keys. |