PYTHON-3078 Remove Use of Unsupported NoReturn Type Class (#864)

.evergreen/config.yml

@@ -1729,7 +1729,7 @@ tasks:
           vars:
             VERSION: "latest"
             TOPOLOGY: "server"
-            PYTHON_BINARY: "/opt/mongodbtoolchain/v3/bin/python3"
+            PYTHON_BINARY: "/opt/mongodbtoolchain/v2/bin/python3"
         - func: "run tests"
 # }}}
     - name: "coverage-report"

bson/__init__.py

@@ -76,7 +76,6 @@ from typing import (
     List,
     Mapping,
     MutableMapping,
-    NoReturn,
     Sequence,
     Tuple,
     Type,
@@ -167,7 +166,7 @@ def get_data_and_view(data: Any) -> Tuple[Any, memoryview]:
     return view.tobytes(), view
 
 
-def _raise_unknown_type(element_type: int, element_name: str) -> NoReturn:
+def _raise_unknown_type(element_type: int, element_name: str) -> None:
     """Unknown type helper."""
     raise InvalidBSON(
         "Detected unknown BSON type %r for fieldname '%s'. Are "

bson/objectid.py

@@ -24,7 +24,7 @@ import struct
 import threading
 import time
 from random import SystemRandom
-from typing import Any, NoReturn, Optional, Type, Union
+from typing import Any, Optional, Type, Union
 
 from bson.errors import InvalidId
 from bson.tz_util import utc
@@ -32,7 +32,7 @@ from bson.tz_util import utc
 _MAX_COUNTER_VALUE = 0xFFFFFF
 
 
-def _raise_invalid_id(oid: str) -> NoReturn:
+def _raise_invalid_id(oid: str) -> None:
     raise InvalidId(
         "%r is not a valid ObjectId, it must be a 12-byte input"
         " or a 24-character hex string" % oid