Fix type hint on Python 3.8 (#4862)

Use typing instead on bare Python type to avoid using subscript
operation on built-in Python type

Fix "TypeError: 'type' object is not subscriptable" error on Python 3.8

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Author: aobolensk

python/setup.py

@@ -14,7 +14,7 @@
 from io import BytesIO
 from distutils.command.clean import clean
 from pathlib import Path
-from typing import NamedTuple
+from typing import List, NamedTuple
 
 from setuptools import Extension, setup
 from setuptools.command.build_ext import build_ext
@@ -32,8 +32,8 @@
 @dataclass
 class Backend:
     name: str
-    package_data: list[str]
-    language_package_data: list[str]
+    package_data: List[str]
+    language_package_data: List[str]
     src_dir: str
     backend_dir: str
     language_dir: str

python/triton/backends/compiler.py

@@ -5,7 +5,7 @@
 
 from abc import ABCMeta, abstractmethod, abstractclassmethod
 from dataclasses import dataclass
-from typing import Dict, Union
+from typing import Dict, List, Tuple, Union
 from types import ModuleType
 
 
@@ -146,7 +146,7 @@ def from_dict(data):
         return attrsDescriptor
 
     @staticmethod
-    def from_hints(hints: list[tuple[int, int]]):
+    def from_hints(hints: List[Tuple[int, int]]):
         """
         Create the class from a set of hints that are passed in.