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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2021-10-13 10:15:43 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-10-13 19:15:43 +0200 |
| commit | fd2be6da2ffec2301a58aefa92f17f0c567fbc55 (patch) | |
| tree | adcd1ee8f2476a365c087390bc970dc5b0112825 /Lib/argparse.py | |
| parent | f8473f6f7603f8cccccc3307d4cb853587be41b3 (diff) | |
| download | cpython-git-fd2be6da2ffec2301a58aefa92f17f0c567fbc55.tar.gz | |
bpo-24444: fix an error in argparse help when help for an option is blank (GH-28050) (GH-28931)
(cherry picked from commit 6fafc25aea8689048314b5bf7a9bb986bb1ce238)
Co-authored-by: andrei kulakov <andrei.avk@gmail.com>
Diffstat (limited to 'Lib/argparse.py')
| -rw-r--r-- | Lib/argparse.py | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/Lib/argparse.py b/Lib/argparse.py index ce4635adcb..f1f6f3227b 100644 --- a/Lib/argparse.py +++ b/Lib/argparse.py @@ -526,12 +526,13 @@ class HelpFormatter(object): parts = [action_header] # if there was help for the action, add lines of help text - if action.help: + if action.help and action.help.strip(): help_text = self._expand_help(action) - help_lines = self._split_lines(help_text, help_width) - parts.append('%*s%s\n' % (indent_first, '', help_lines[0])) - for line in help_lines[1:]: - parts.append('%*s%s\n' % (help_position, '', line)) + if help_text: + help_lines = self._split_lines(help_text, help_width) + parts.append('%*s%s\n' % (indent_first, '', help_lines[0])) + for line in help_lines[1:]: + parts.append('%*s%s\n' % (help_position, '', line)) # or add a newline if the description doesn't end with one elif not action_header.endswith('\n'): |