fmt

sphinx/writers/html5.py

@@ -287,7 +287,8 @@ def depart_desc_optional(self, node: Element) -> None:
         level = self.optional_param_level
         if self.multi_line_parameter_list:
             max_level = self.max_optional_param_level
-            is_last_group = self.param_group_index + 1 == len(self.list_is_required_param)
+            len_lirp = len(self.list_is_required_param)
+            is_last_group = self.param_group_index + 1 == len_lirp
             # If it's the first time we go down one level, add the separator before the
             # bracket, except if this is the last parameter and the parameter list
             # should not feature a trailing comma.

sphinx/writers/latex.py

@@ -1061,7 +1061,8 @@ def depart_desc_optional(self, node: Element) -> None:
         level = self.optional_param_level
         if self.multi_line_parameter_list:
             max_level = self.max_optional_param_level
-            is_last_group = self.param_group_index + 1 == len(self.list_is_required_param)
+            len_lirp = len(self.list_is_required_param)
+            is_last_group = self.param_group_index + 1 == len_lirp
             # If it's the first time we go down one level, add the separator before the
             # bracket, except if this is the last parameter and the parameter list
             # should not feature a trailing comma.

sphinx/writers/text.py

@@ -743,7 +743,8 @@ def depart_desc_optional(self, node: Element) -> None:
         level = self.optional_param_level
         if self.multi_line_parameter_list:
             max_level = self.max_optional_param_level
-            is_last_group = self.param_group_index + 1 == len(self.list_is_required_param)
+            len_lirp = len(self.list_is_required_param)
+            is_last_group = self.param_group_index + 1 == len_lirp
             # If it's the first time we go down one level, add the separator before the
             # bracket, except if this is the last parameter and the parameter list
             # should not feature a trailing comma.