Remove dependency on zmq/tornado #23

This should allow installation on pyolite

Author: Kirill888

jupyter_ui_poll/_poll.py

@@ -18,14 +18,14 @@
     TypeVar,
 )
 
-import zmq
 from IPython import get_ipython
-from tornado.queues import QueueEmpty
 
 from ._async_thread import AsyncThread
 
 T = TypeVar("T")
 
+ZMQ_POLLOUT = 2  # zmq.POLLOUT without zmq dependency
+
 
 class KernelWrapper:
     _current: Optional["KernelWrapper"] = None
@@ -96,7 +96,7 @@ async def replay(self):
                 sys.stderr.flush()
                 if shell_stream is not None:  # 6+
                     kernel._publish_status("idle", "shell")
-                    shell_stream.flush(zmq.POLLOUT)
+                    shell_stream.flush(ZMQ_POLLOUT)
                 else:
                     kernel._publish_status("idle")
 
@@ -105,7 +105,7 @@ async def do_one_iteration(self):
             rr = self._kernel.do_one_iteration()
             if isawaitable(rr):
                 await rr
-        except QueueEmpty:
+        except Exception:  # pylint: disable=broad-except
             # it's probably a bug in ipykernel,
             # .do_one_iteration() should not throw
             return

setup.cfg

@@ -36,8 +36,6 @@ setup_requires =
     setuptools
 install_requires =
     ipython
-    tornado
-    pyzmq
 
 
 [options.extras_require]