KeyError when restarting kernel on Windows

Description

What steps will reproduce the problem?

When some code is in debug (I use breakpoint()), the error occurs when closing the console using the ‘x’. If I stop the debug mode or press the black stop button first, it does not occur.

Traceback

--- Logging error ---
Traceback (most recent call last):
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\qtconsole\comms.py", line 113, in get_comm
    return self.comms[comm_id]
KeyError: '9ba3286fa1a511eba4f5fcaa14552b99'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\logging\__init__.py", line 1084, in emit
    stream.write(msg + self.terminator)
AttributeError: 'NoneType' object has no attribute 'write'
Call stack:
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\scripts\spyder.exe\__main__.py", line 7, in <module>
    sys.exit(main())
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\spyder\app\start.py", line 213, in main
    mainwindow.main(options, args)
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\spyder\app\mainwindow.py", line 2311, in main
    mainwindow = create_window(app, splash, options, args)
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\spyder\app\mainwindow.py", line 2207, in create_window
    app.exec_()
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\qtconsole\comms.py", line 48, in _dispatch
    getattr(self, msg_type)(msg)
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\qtconsole\comms.py", line 172, in comm_msg
    comm = self.get_comm(comm_id)
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\qtconsole\comms.py", line 117, in get_comm
    self.log.warning("No such comm: %s", comm_id)
Message: 'No such comm: %s'
Arguments: ('9ba3286fa1a511eba4f5fcaa14552b99',)
--- Logging error ---
Traceback (most recent call last):
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\qtconsole\comms.py", line 113, in get_comm
    return self.comms[comm_id]
KeyError: '9ba3286fa1a511eba4f5fcaa14552b99'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\logging\__init__.py", line 1084, in emit
    stream.write(msg + self.terminator)
AttributeError: 'NoneType' object has no attribute 'write'
Call stack:
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\scripts\spyder.exe\__main__.py", line 7, in <module>
    sys.exit(main())
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\spyder\app\start.py", line 213, in main
    mainwindow.main(options, args)
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\spyder\app\mainwindow.py", line 2311, in main
    mainwindow = create_window(app, splash, options, args)
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\spyder\app\mainwindow.py", line 2207, in create_window
    app.exec_()
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\qtconsole\comms.py", line 48, in _dispatch
    getattr(self, msg_type)(msg)
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\qtconsole\comms.py", line 172, in comm_msg
    comm = self.get_comm(comm_id)
  File "C:\Python\WPy64-3880\python-3.8.8.amd64\lib\site-packages\qtconsole\comms.py", line 117, in get_comm
    self.log.warning("No such comm: %s", comm_id)
Message: 'No such comm: %s'
Arguments: ('9ba3286fa1a511eba4f5fcaa14552b99',)

Versions

• Spyder version: 5.0.1
• Python version: 3.8.8
• Qt version: 5.12.10
• PyQt5 version: 5.12.3
• Operating System: Windows 10

Dependencies

# Mandatory:
atomicwrites >=1.2.0          :  1.4.0 (OK)
chardet >=2.0.0               :  3.0.4 (OK)
cloudpickle >=0.5.0           :  1.6.0 (OK)
cookiecutter >=1.6.0          :  1.7.2 (OK)
diff_match_patch >=20181111   :  20200713 (OK)
intervaltree >=3.0.2          :  3.0.2 (OK)
IPython >=7.6.0               :  7.21.0 (OK)
jedi =0.17.2                  :  0.17.2 (OK)
jsonschema >=3.2.0            :  3.2.0 (OK)
keyring >=17.0.0              :  23.0.0 (OK)
nbconvert >=4.0               :  6.0.7 (OK)
numpydoc >=0.6.0              :  1.1.0 (OK)
paramiko >=2.4.0              :  2.7.2 (OK)
parso =0.7.0                  :  0.7.0 (OK)
pexpect >=4.4.0               :  4.8.0 (OK)
pickleshare >=0.4             :  0.7.5 (OK)
psutil >=5.3                  :  5.8.0 (OK)
pygments >=2.0                :  2.8.0 (OK)
pylint >=1.0                  :  2.7.1 (OK)
pyls >=0.36.2;<1.0.0          :  0.36.2 (OK)
pyls_black >=0.4.6            :  0.4.6 (OK)
pyls_spyder >=0.3.2           :  0.3.2 (OK)
qdarkstyle =3.0.2             :  3.0.2 (OK)
qstylizer >=0.1.10            :  0.1.10 (OK)
qtawesome >=1.0.2             :  1.0.2 (OK)
qtconsole >=5.0.3             :  5.0.3 (OK)
qtpy >=1.5.0                  :  1.10.0.dev0 (OK)
setuptools >=39.0.0           :  54.1.0 (OK)
sphinx >=0.6.6                :  3.5.1 (OK)
spyder_kernels >=2.0.1;<2.1.0 :  2.0.1 (OK)
textdistance >=4.2.0          :  4.2.1 (OK)
three_merge >=0.1.1           :  0.1.1 (OK)
watchdog >=0.10.3;<2.0.0      :  1.0.2 (OK)
zmq >=17                      :  22.0.3 (OK)

# Optional:
cython >=0.21                 :  0.29.22 (OK)
matplotlib >=2.0.0            :  3.3.4 (OK)
numpy >=1.7                   :  1.20.1 (OK)
pandas >=1.1.1                :  1.2.3 (OK)
scipy >=0.17.0                :  1.6.1 (OK)
sympy >=0.7.3                 :  1.7.1 (OK)

[stonebig]

thanks for the discovery of the “< details >” markdown, will re-use it

[Patrick-Cole]

Thanks very much - keep up the awesome work!