Merge branch 'synchronous_managers' of github.com:blink1073/jupyter_client into synchronous_managers

Author: blink1073

jupyter_client/threaded.py

@@ -20,7 +20,6 @@
 from .session import Session
 from jupyter_client import KernelClient
 from jupyter_client.channels import HBChannel
-from jupyter_client.utils import run_sync
 
 # Local imports
 # import ZMQError in top-level namespace, to avoid ugly attribute-error messages
@@ -102,7 +101,7 @@ def send(self, msg: Dict[str, Any]) -> None:
 
         def thread_send():
             assert self.session is not None
-            run_sync(self.session.send(self.stream, msg))
+            self.session.send(self.stream, msg)
 
         assert self.ioloop is not None
         self.ioloop.add_callback(thread_send)

tests/test_multikernelmanager.py

@@ -178,6 +178,10 @@ def test_start_parallel_thread_kernels(self):
         (sys.platform == "darwin") and (sys.version_info >= (3, 6)) and (sys.version_info < (3, 8)),
         reason='"Bad file descriptor" error',
     )
+    @pytest.mark.skipif(
+        sys.platform == "linux",
+        reason='Kernel refuses to start in process pool',
+    )
     def test_start_parallel_process_kernels(self):
         self.test_tcp_lifecycle()