fix: handle backward-compatibility for format_* methods

Signed-off-by: Frost Ming <[email protected]>

Author: frostming

Lib/argparse.py

@@ -2737,13 +2737,25 @@ def print_usage(self, file=None):
         if file is None:
             file = _sys.stdout
         formatter = self._get_formatter(file=file)
-        self._print_message(self.format_usage(formatter=formatter), file)
+        try:
+            usage_text = self.format_usage(formatter=formatter)
+        except TypeError:
+            # Backward compatibility for formatter classes that
+            # do not accept the 'formatter' keyword argument.
+            usage_text = self.format_usage()
+        self._print_message(usage_text, file)
 
     def print_help(self, file=None):
         if file is None:
             file = _sys.stdout
         formatter = self._get_formatter(file=file)
-        self._print_message(self.format_help(formatter=formatter), file)
+        try:
+            help_text = self.format_help(formatter=formatter)
+        except TypeError:
+            # Backward compatibility for formatter classes that
+            # do not accept the 'formatter' keyword argument.
+            help_text = self.format_help()
+        self._print_message(help_text, file)
 
     def _print_message(self, message, file=None):
         if message: