Oct 18, 2023 · Oct 12, 2023 · Oct 13, 2023
diff --git a/Grammar/python.gram b/Grammar/python.gram

 # From here on, there are rules for invalid syntax with specialised error messages
 invalid_arguments:
    | a=args ',' '*' { RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "iterable argument unpacking follows keyword argument unpacking") }
    | ((','.(starred_expression | ( assignment_expression | expression !':=') !'=')+ ',' kwargs) | kwargs) ',' b='*' {
        RAISE_SYNTAX_ERROR_KNOWN_LOCATION(b, "iterable argument unpacking follows keyword argument unpacking") }
    | a=expression b=for_if_clauses ',' [args | expression for_if_clauses] {
        RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, _PyPegen_get_last_comprehension_item(PyPegen_last_item(b, comprehension_ty)), "Generator expression must be parenthesized") }
    | a=NAME b='=' expression for_if_clauses {
diff --git a/Lib/test/test_syntax.py b/Lib/test/test_syntax.py
        ^^^^^^^^^^^
   SyntaxError: bytes can only contain ASCII literal characters

   >>> f(**x, *y)
   Traceback (most recent call last):
   SyntaxError: iterable argument unpacking follows keyword argument unpacking

   >>> f(**x, *)
   Traceback (most recent call last):
   SyntaxError: iterable argument unpacking follows keyword argument unpacking

   >>> f(x, *:)
   Traceback (most recent call last):
   SyntaxError: invalid syntax
 """

 import re
diff --git a/Misc/NEWS.d/next/Core and Builtins/2023-10-11-13-46-14.gh-issue-110696.J9kSzr.rst b/Misc/NEWS.d/next/Core and Builtins/2023-10-11-13-46-14.gh-issue-110696.J9kSzr.rst
 Fix incorrect error message for invalid argument unpacking. Patch by Pablo
 Galindo
Original file line number	Diff line number	Diff line change
Expand Up		@@ -1075,7 +1075,8 @@ func_type_comment[Token*]:

		# From here on, there are rules for invalid syntax with specialised error messages
		invalid_arguments:
		\| a=args ',' '*' { RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "iterable argument unpacking follows keyword argument unpacking") }
		\| ((','.(starred_expression \| ( assignment_expression \| expression !':=') !'=')+ ',' kwargs) \| kwargs) ',' b='*' {
		RAISE_SYNTAX_ERROR_KNOWN_LOCATION(b, "iterable argument unpacking follows keyword argument unpacking") }
		\| a=expression b=for_if_clauses ',' [args \| expression for_if_clauses] {
		RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, _PyPegen_get_last_comprehension_item(PyPegen_last_item(b, comprehension_ty)), "Generator expression must be parenthesized") }
		\| a=NAME b='=' expression for_if_clauses {
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -1827,6 +1827,17 @@ def f(x: *b)
		^^^^^^^^^^^
		SyntaxError: bytes can only contain ASCII literal characters

		>>> f(*x, y)
		Traceback (most recent call last):
		SyntaxError: iterable argument unpacking follows keyword argument unpacking

		>>> f(*x, )
		Traceback (most recent call last):
		SyntaxError: iterable argument unpacking follows keyword argument unpacking

		>>> f(x, *:)
		Traceback (most recent call last):
		SyntaxError: invalid syntax
		"""

		import re
Expand Down
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		Fix incorrect error message for invalid argument unpacking. Patch by Pablo
		Galindo