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| author | andrei kulakov <andrei.avk@gmail.com> | 2021-10-13 16:31:51 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-10-13 16:31:51 (GMT) |
| commit | 6fafc25aea8689048314b5bf7a9bb986bb1ce238 (patch) | |
| tree | b28f03443e4f25545a2c17b536089739a917de47 /Lib/argparse.py | |
| parent | b9e687618d3489944f29adbd2be50b46940c9e70 (diff) | |
| download | cpython-6fafc25aea8689048314b5bf7a9bb986bb1ce238.zip cpython-6fafc25aea8689048314b5bf7a9bb986bb1ce238.tar.gz cpython-6fafc25aea8689048314b5bf7a9bb986bb1ce238.tar.bz2 | |
bpo-24444: fix an error in argparse help when help for an option is blank (GH-28050)
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 df98999..4cc14f2 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'): |