Spyder crash when turning on/reconnecting a VPN

Problem Description

While having a VPN, if I lose connection or manually reconnect spyder crashes with no error message. In my case, the VPN is Windscribe connected to the closest possible node. Turning the VPN off while having Spyder open does not generate a crash.

What steps reproduce the problem?

1. Open Spyder
2. Turn on VPN
3. Crash

Versions

• Spyder version: 4.1.5 None
• Python version: 3.8.5 64-bit
• Qt version: 5.12.5
• 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)
diff_match_patch >=20181111    :  20200713 (OK)
intervaltree                   :  None (OK)
IPython >=4.0                  :  7.18.1 (OK)
jedi =0.17.1                   :  0.17.1 (OK)
nbconvert >=4.0                :  5.6.1 (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                   :  5.7.2 (OK)
pygments >=2.0                 :  2.6.1 (OK)
pylint >=1.0                   :  2.6.0 (OK)
pyls >=0.34.0;<1.0.0           :  0.34.1 (OK)
qdarkstyle >=2.8               :  2.8.1 (OK)
qtawesome >=0.5.7              :  1.0.1 (OK)
qtconsole >=4.6.0              :  4.7.7 (OK)
qtpy >=1.5.0                   :  1.9.0 (OK)
rtree >=0.8.3                  :  0.9.4 (OK)
sphinx >=0.6.6                 :  3.2.1 (OK)
spyder_kernels >=1.9.4;<1.10.0 :  1.9.4 (OK)
watchdog                       :  None (OK)
zmq >=17                       :  19.0.2 (OK)

# Optional:
cython >=0.21                  :  None (OK)
matplotlib >=2.0.0             :  3.3.2 (OK)
numpy >=1.7                    :  1.19.1 (OK)
pandas >=0.13.1                :  1.1.2 (OK)
scipy >=0.17.0                 :  1.5.0 (OK)
sympy >=0.7.3                  :  None (OK)

[ccordoba12]

Spyder no longer crashes

Ok, those are good news (hard crashes are the worst).

but the console shows that there is still something wrong as I get an infinite loop of

Ok, that means the ports we use need to be changed from tcp to ipc. However, that’s not something we control but it depends on some projects maintained by the Jupyter team. So I don’t know when/if it’s going to be addressed by them.

[dalthviz]

Hi @ifariasg sorry to hear that, if the crash is related with the VPN being on or reconnecting maybe the issue is caused by the VPN closing some connection to the LSP. Is there a way for your VPN config to exclude localhost/127.0.0.1 address to prevent connection interruptions? Also, maybe running from the Anaconda prompt spyder --debug-info verbose could give us some useful info about the error and if there is something we can do from the Spyder side.

Any new info is greatly appreciated 😃