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gh-141679: Add colour to defaults in argparse help (#141680)

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Co-authored-by: Savannah Ostrowski <savannah@python.org>
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Hugo van Kemenade 2025-11-23 02:26:50 +02:00 • committed by GitHub
parent 227b9d326e
commit e73fbbacbb
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4 changed files with 20 additions and 8 deletions
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9
Lib/argparse.py
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@ -748,7 +748,14 @@ def _get_help_string(self, action):
if action.default is not SUPPRESS:
defaulting_nargs = [OPTIONAL, ZERO_OR_MORE]
if action.option_strings or action.nargs in defaulting_nargs:
help += _(' (default: %(default)s)')
t = self._theme
default_str = _(" (default: %(default)s)")
prefix, suffix = default_str.split("%(default)s")
help += (
f" {t.default}{prefix.lstrip()}"
f"{t.default_value}%(default)s"
f"{t.default}{suffix}{t.reset}"
)
return help