TimeoutError in the IPython console when moving or deleting startup script

Description

What steps will reproduce the problem?

Just triggers on opening Spyder:

Traceback

    toggled=lambda checked: self.toggle_view(checked),
  File "C:\Users\...\Anaconda3\lib\site-packages\spyder\plugins\ipythonconsole\plugin.py", line 207, in toggle_view
    self.create_new_client(give_focus=False)
  File "C:\Users\...\Anaconda3\lib\site-packages\spyder\plugins\ipythonconsole\plugin.py", line 703, in create_new_client
    self.register_client(client)
  File "C:\Users\...\Anaconda3\lib\site-packages\spyder\plugins\ipythonconsole\plugin.py", line 918, in register_client
    shellwidget.set_cwd(cwd_path)
  File "C:\Users\...\Anaconda3\lib\site-packages\spyder\plugins\ipythonconsole\widgets\shell.py", line 178, in set_cwd
    self.call_kernel(interrupt=True).set_cwd(dirname)
  File "C:\Users\...\Anaconda3\lib\site-packages\spyder_kernels\comms\commbase.py", line 538, in __call__
    call_dict, call_data, self._comm_id)
  File "C:\Users\...\Anaconda3\lib\site-packages\spyder\plugins\ipythonconsole\comms\kernelcomm.py", line 130, in _get_call_return_value
    with self.comm_channel_manager(comm_id, queue_message=not interrupt):
  File "C:\Users\...\Anaconda3\lib\contextlib.py", line 112, in __enter__
    return next(self.gen)
  File "C:\Users\...\Anaconda3\lib\site-packages\spyder\plugins\ipythonconsole\comms\kernelcomm.py", line 87, in comm_channel_manager
    timeout)
  File "C:\Users\...\Anaconda3\lib\site-packages\spyder\plugins\ipythonconsole\comms\kernelcomm.py", line 168, in _wait
    raise TimeoutError(timeout_msg)
TimeoutError: Timeout while waiting for comm port.

Versions

• Spyder version: 4.1.2
• Python version: 3.7.3
• Qt version: 5.9.6
• PyQt5 version: 5.9.2
• Operating System: Windows 10

Dependencies

# Mandatory:
atomicwrites >=1.2.0           :  1.3.0 (OK)
chardet >=2.0.0                :  3.0.4 (OK)
cloudpickle >=0.5.0            :  1.3.0 (OK)
diff_match_patch >=20181111    :  20181111 (OK)
intervaltree                   :  None (OK)
IPython >=4.0                  :  7.13.0 (OK)
jedi =0.15.2                   :  0.15.2 (OK)
nbconvert >=4.0                :  5.6.1 (OK)
numpydoc >=0.6.0               :  0.9.2 (OK)
paramiko >=2.4.0               :  2.7.1 (OK)
parso =0.5.2                   :  0.5.2 (OK)
pexpect >=4.4.0                :  4.8.0 (OK)
pickleshare >=0.4              :  0.7.5 (OK)
psutil >=5.3                   :  5.7.0 (OK)
pygments >=2.0                 :  2.6.1 (OK)
pylint >=0.25                  :  2.4.4 (OK)
pyls >=0.31.9;<0.32.0          :  0.31.9 (OK)
qdarkstyle >=2.8               :  2.8 (OK)
qtawesome >=0.5.7              :  0.7.0 (OK)
qtconsole >=4.6.0              :  4.7.2 (OK)
qtpy >=1.5.0                   :  1.9.0 (OK)
rtree >=0.8.3                  :  0.9.3 (OK)
sphinx >=0.6.6                 :  2.4.4 (OK)
spyder_kernels >=1.9.0;<1.10.0 :  1.9.0 (OK)
watchdog                       :  None (OK)
zmq >=17                       :  18.1.1 (OK)

# Optional:
cython >=0.21                  :  0.29.15 (OK)
matplotlib >=2.0.0             :  3.1.3 (OK)
numpy >=1.7                    :  1.18.1 (OK)
pandas >=0.13.1                :  1.0.3 (OK)
scipy >=0.17.0                 :  1.4.1 (OK)
sympy >=0.7.3                  :  1.5.1 (OK)

# Spyder plugins:
spyder_notebook                :  0.2.2 (OK)

[impact27]

Apparently ipython does handle the error by exiting the kernel: https://github.com/ipython/ipython/blob/95d5171b7b79a660cdfb318a5e9b99dd948b55e6/IPython/core/shellapp.py#L427 I added a check at the spyder-kernel level to avoid this

[impact27]

Is it the case that if you do that then you can’t use the console? If this is the case can you reopen this issue? Because then the bug is:

1. set up a python script to run via tools > Preferences > ipython console > startup
2. rename the file or move it or whatever (it doesn’t seem to make a difference if spyder is running or not when I do this)
3. launch spyder or relaunch the console

Which prevents the console from opening