Improve class A[]: ... syntax error message #118090
Description
Feature or enhancement
Right now it will generate this default error:
>>> class A[]: ... File "<stdin>", line 1 class A[]: ... ^ SyntaxError: invalid syntax >>> def some[](arg: int) -> None: ... File "<stdin>", line 1 def some[](arg: int) -> None: ... ^ SyntaxError: expected '(' >>> type Alias[] = int File "<stdin>", line 1 type Alias[] = int ^ SyntaxError: invalid syntaxI propose to change it to:
>>> class A[]: File "<stdin>", line 1 class A[]: ^ SyntaxError: At least one type variable definition is expected >>> def some[](arg: int) -> None: ... File "<stdin>", line 1 def some[](arg: int) -> None: ... ^ SyntaxError: At least one type variable definition is expected >>> type Alias[] = int File "<stdin>", line 1 type Alias[] = int ^ SyntaxError: At least one type variable definition is expectedI have a PR ready.