Merge pull request #158 from janluke/fix/write_usage

Fix `write usage`: formatting and default value
janluke · Jun 3, 2023 · ef59d8b · ef59d8b
2 parents 864c857 + 22ac57a
commit ef59d8b
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/cloup/formatting/_formatter.py b/cloup/formatting/_formatter.py
@@ -168,10 +168,10 @@ def write(self, *strings: str) -> None:
         self.buffer += strings
 
     def write_usage(
-        self, prog: str, args: str = "", prefix: Optional[str] = 'Usage:'
+        self, prog: str, args: str = "", prefix: Optional[str] = None
     ) -> None:
-        if prefix:
-            prefix = self.theme.heading(prefix + ' ')
+        prefix = "Usage:" if prefix is None else prefix
+        prefix = self.theme.heading(prefix) + " "
         prog = self.theme.invoked_command(prog)
         super().write_usage(prog, args, prefix)