Apr 19, 2025 · May 20, 2025
diff --git a/Doc/library/string.rst b/Doc/library/string.rst
 .. productionlist:: format-string
   replacement_field: "{" [`field_name`] ["!" `conversion`] [":" `format_spec`] "}"
   field_name: `arg_name` ("." `attribute_name` | "[" `element_index` "]")*
   arg_name: [`~python-grammar:identifier` | `~python-grammar:digit`+]
   attribute_name:`~python-grammar:identifier`
   arg_name: [`~python-grammar:digit`+ | `attribute_name`]
   attribute_name:<any source character except "{", "}", "[", or "."> +
   element_index: `~python-grammar:digit`+ | `index_string`
   index_string: <any source character except "]"> +
   conversion: "r" | "s" | "a"
Original file line number	Diff line number	Diff line change
Expand Up		@@ -216,8 +216,8 @@ The grammar for a replacement field is as follows:
		.. productionlist:: format-string
		replacement_field: "{" [`field_name`] ["!" `conversion`] [":" `format_spec`] "}"
		field_name: `arg_name` ("." `attribute_name` \| "[" `element_index` "]")*
		arg_name: [`~python-grammar:identifier` \| `~python-grammar:digit`+]
		attribute_name:`~python-grammar:identifier`
		arg_name: [`~python-grammar:digit`+ \| `attribute_name`]
		attribute_name:<any source character except "{", "}", "[", or "."> +
		element_index: `~python-grammar:digit`+ \| `index_string`
		index_string: <any source character except "]"> +
		conversion: "r" \| "s" \| "a"
Expand Down