Fix 'ABCMeta' object is not subscriptable error in Python 3.8

Author: lieryan

rope/contrib/autoimport/sqlite.py

@@ -1,5 +1,7 @@
 """AutoImport module for rope."""
 
+from __future__ import annotations
+
 import contextlib
 import json
 import re
@@ -14,8 +16,16 @@
 from itertools import chain
 from pathlib import Path
 from threading import local
-from collections.abc import Collection
-from typing import Generator, Iterable, Iterator, List, Optional, Set, Tuple
+from typing import (
+    Generator,
+    Iterable,
+    Iterator,
+    List,
+    Optional,
+    Set,
+    Tuple,
+    TYPE_CHECKING,
+)
 
 from rope.base import exceptions, libutils, resourceobserver, taskhandle, versioning
 from rope.base.project import Project
@@ -42,6 +52,10 @@
 from rope.refactor import importutils
 
 
+if TYPE_CHECKING:
+    from collections.abc import Collection
+
+
 def get_future_names(
     packages: List[Package], underlined: bool, job_set: taskhandle.BaseJobSet
 ) -> Generator[Future[Collection[Name]], None, None]: