chore(tests): fix up it tests

src/deep/processor/trigger_handler.py

@@ -102,7 +102,9 @@ def start(self):
         if self._config.NO_TRACE:
             return
         self.__old_sys_trace = sys.gettrace()
-        self.__old_thread_trace = threading.gettrace()
+        # gettrace was added in 3.10, so use it if we can, else try to get from property
+        # noinspection PyUnresolvedReferences,PyProtectedMember
+        self.__old_thread_trace = threading.gettrace() if hasattr(threading, 'gettrace') else threading._trace_hook
         sys.settrace(self.trace_call)
         threading.settrace(self.trace_call)
 
@@ -197,7 +199,7 @@ def __actions_for_location(self, event, file, line, function):
 
     def __process_call_backs(self, frame: FrameType, event: str):
         callbacks = self.__callbacks.value.pop()
-        remaining: list[ActionCallback] = []
+        remaining: List[ActionCallback] = []
         for callback in callbacks:
             if callback.process(frame, event):
                 remaining.append(callback)

tests/it_tests/it_test_basic.py → tests/it_tests/test_it_basic.py

@@ -30,7 +30,7 @@ class BasicITTest(unittest.TestCase):
     def test_simple_it(self):
         server: MockServer
         with start_server() as server:
-            server.add_tp("test_target.py", 29, {}, [], [])
+            server.add_tp("test_target.py", 40, {}, [], [])
             _deep = deep.start(server.config({}))
             server.await_poll()
             test = BPTargetTest("name", 123)
@@ -41,7 +41,7 @@ def test_simple_it(self):
             frames = snapshot.frames
             self.assertEqual(it_tests.test_target.__file__, frames[0].file_name)
             self.assertEqual("/it_tests/test_target.py", frames[0].short_path)
-            self.assertEqual(29, frames[0].line_number)
+            self.assertEqual(40, frames[0].line_number)
             self.assertEqual(4, len(frames[0].variables))
             self.assertEqual(6, len(snapshot.var_lookup))