From dc9f2385ed528caf4ab02965b6d3e16b8a72db25 Mon Sep 17 00:00:00 2001 From: Savannah Ostrowski Date: Sun, 7 Dec 2025 13:02:12 -0800 Subject: [PATCH] GH-139862: Fix direct instantiation of `HelpFormatter` (#142384) --- Lib/argparse.py | 2 ++ Lib/test/test_argparse.py | 5 +++++ 2 files changed, 7 insertions(+) diff --git a/Lib/argparse.py b/Lib/argparse.py index 6ed7386d0dd4..398825508f59 100644 --- a/Lib/argparse.py +++ b/Lib/argparse.py @@ -189,6 +189,8 @@ class HelpFormatter(object): self._whitespace_matcher = _re.compile(r'\s+', _re.ASCII) self._long_break_matcher = _re.compile(r'\n\n\n+') + self._set_color(False) + def _set_color(self, color): from _colorize import can_colorize, decolor, get_theme diff --git a/Lib/test/test_argparse.py b/Lib/test/test_argparse.py index fe5232e9f3b5..7c5eed21219d 100644 --- a/Lib/test/test_argparse.py +++ b/Lib/test/test_argparse.py @@ -5694,6 +5694,11 @@ class TestHelpCustomHelpFormatter(TestCase): a-very-long-command command that does something ''')) + def test_direct_formatter_instantiation(self): + formatter = argparse.HelpFormatter(prog="program") + formatter.add_usage(usage=None, actions=[], groups=[]) + help_text = formatter.format_help() + self.assertEqual(help_text, "usage: program\n") # ===================================== # Optional/Positional constructor tests -- 2.47.3