zmq.error.ZMQError: Socket operation on non-socket

[battaglia01]

Description

What steps will reproduce the problem?

I keep getting this error again and again when using Spyder, and I haven't quite figured out what causes it to happen, but it's happened about a thousand times the past week so I figured I'll submit it. Sorry I don't have more details, except I'm on macOS M1, and running a program which involves both Cython and multithreading.

Traceback

Exception in callback BaseAsyncIOLoop._handle_events(352, 1)
handle: <Handle BaseAsyncIOLoop._handle_events(352, 1)>
Traceback (most recent call last):
  File "/Users/mike/Library/miniconda3/envs/spyder-env/lib/python3.11/asyncio/events.py", line 80, in _run
    self._context.run(self._callback, *self._args)
  File "/Users/mike/Library/miniconda3/envs/spyder-env/lib/python3.11/site-packages/tornado/platform/asyncio.py", line 206, in _handle_events
    handler_func(fileobj, events)
  File "/Users/mike/Library/miniconda3/envs/spyder-env/lib/python3.11/site-packages/zmq/eventloop/zmqstream.py", line 614, in _handle_events
    zmq_events = self.socket.EVENTS
                 ^^^^^^^^^^^^^^^^^^
  File "/Users/mike/Library/miniconda3/envs/spyder-env/lib/python3.11/site-packages/zmq/sugar/attrsettr.py", line 56, in __getattr__
    return self._get_attr_opt(upper_key, opt)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/mike/Library/miniconda3/envs/spyder-env/lib/python3.11/site-packages/zmq/sugar/attrsettr.py", line 68, in _get_attr_opt
    return self.get(opt)
           ^^^^^^^^^^^^^
  File "zmq/backend/cython/socket.pyx", line 512, in zmq.backend.cython.socket.Socket.get
  File "zmq/backend/cython/socket.pyx", line 270, in zmq.backend.cython.socket._getsockopt
  File "zmq/backend/cython/checkrc.pxd", line 28, in zmq.backend.cython.checkrc._check_rc
zmq.error.ZMQError: Socket operation on non-socket

Versions

• Spyder version: 5.4.2 (conda)
• Python version: 3.11.0 64-bit
• Qt version: 5.15.6
• PyQt5 version: 5.15.7
• Operating System: Darwin 21.6.0

Dependencies

# Mandatory:
applaunchservices >=0.3.0     :  0.3.0 (OK)
atomicwrites >=1.2.0          :  1.4.1 (OK)
chardet >=2.0.0               :  5.1.0 (OK)
cloudpickle >=0.5.0           :  2.2.1 (OK)
cookiecutter >=1.6.0          :  2.1.1 (OK)
diff_match_patch >=20181111   :  20200713 (OK)
intervaltree >=3.0.2          :  3.0.2 (OK)
IPython >=7.31.1;<9.0.0       :  8.11.0 (OK)
jedi >=0.17.2;<0.19.0         :  0.18.2 (OK)
jellyfish >=0.7               :  0.9.0 (OK)
jsonschema >=3.2.0            :  4.17.3 (OK)
keyring >=17.0.0              :  23.13.1 (OK)
nbconvert >=4.0               :  7.2.9 (OK)
numpydoc >=0.6.0              :  1.5.0 (OK)
parso >=0.7.0;<0.9.0          :  0.8.3 (OK)
pexpect >=4.4.0               :  4.8.0 (OK)
pickleshare >=0.4             :  0.7.5 (OK)
psutil >=5.3                  :  5.9.4 (OK)
pygments >=2.0                :  2.14.0 (OK)
pylint >=2.5.0;<3.0           :  2.16.3 (OK)
pylint_venv >=2.1.1           :  3.0.1 (OK)
pyls_spyder >=0.4.0           :  0.4.0 (OK)
pylsp >=1.7.1;<1.8.0          :  1.7.1 (OK)
pylsp_black >=1.2.0           :  1.2.1 (OK)
qdarkstyle >=3.0.2;<3.1.0     :  3.0.3 (OK)
qstylizer >=0.2.2             :  0.2.2 (OK)
qtawesome >=1.2.1             :  1.2.2 (OK)
qtconsole >=5.4.0;<5.5.0      :  5.4.0 (OK)
qtpy >=2.1.0                  :  2.3.0 (OK)
rtree >=0.9.7                 :  1.0.1 (OK)
setuptools >=49.6.0           :  67.4.0 (OK)
sphinx >=0.6.6                :  6.1.3 (OK)
spyder_kernels >=2.4.2;<2.5.0 :  2.4.2 (OK)
textdistance >=4.2.0          :  4.5.0 (OK)
three_merge >=0.1.1           :  0.1.1 (OK)
watchdog >=0.10.3             :  2.3.1 (OK)
zmq >=22.1.0                  :  25.0.0 (OK)

# Optional:
cython >=0.21                 :  None (NOK)
matplotlib >=3.0.0            :  None (NOK)
numpy >=1.7                   :  None (NOK)
pandas >=1.1.1                :  None (NOK)
scipy >=0.17.0                :  None (NOK)
sympy >=0.7.3                 :  None (NOK)

[spchamp]

I'm not certain if the following could be related - something about zmq anyway? although a different code location in the following

I've seen the following notification from jupyter_client on the console, when running a Spyder installed on FreeBSD 13.2

<project_path>/env3.10/lib/python3.10/site-packages/jupyter_client/threaded.py:73: RuntimeWarning: ZMQStream only supports the base zmq.Socket class.

                Use zmq.Socket(shadow=other_socket)
                or `ctx.socket(zmq.SUB, socket_class=zmq.Socket)`
                to create a base zmq.Socket object,
                no matter what other kind of socket your Context creates.
                
  self.stream = zmqstream.ZMQStream(self.socket, self.ioloop)

This is appearing with jupyter_client-7.4.9, pyzmq-25.0.0. I've seen a similar message with a virtualenv installed for Python 3.11

[ccordoba12]

Hey @battaglia01, thanks for reporting. This is a duplicate of issue #20381, so I'm going to close it in favor of that one.

@spchamp, what you're seeing is just a warning. It's also mentioned on that issue.