Clarified _validate_key_contents() doc comment

lincolnj1 · lincolnj1 · commit 3638e67973b2 · 2025-01-23T17:00:48.000-08:00
diff --git a/Lib/configparser.py b/Lib/configparser.py
@@ -1223,7 +1223,7 @@ def _convert_to_boolean(self, value):
     
     def _validate_key_contents(self, key):
         """Raises an InvalidInputError for any keys containing 
-        delimiters or a leading '['"""
+        delimiters or that match the section header pattern"""
         if re.match(self.SECTCRE, key):
             raise InvalidInputError("Cannot write keys matching section pattern")
         for delim in self._delimiters:
