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Fix HelpFormatter.write_usage with empty args producing no output #3433

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Fix HelpFormatter.write_usage with empty args producing no output #3433

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4 changes: 4 additions & 0 deletions src/click/formatting.py
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Original file line number Diff line number Diff line change
Expand Up @@ -158,6 +158,10 @@ def write_usage(self, prog: str, args: str = "", prefix: str | None = None) -> N
usage_prefix = f"{prefix:>{self.current_indent}}{prog} "
text_width = self.width - self.current_indent

if not args:
self.write(f"{prefix:>{self.current_indent}}{prog}\n")
return

if text_width >= (term_len(usage_prefix) + 20):
# The arguments will fit to the right of the prefix.
indent = " " * term_len(usage_prefix)
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