Spyder console - Unable to interrupt running program with stop button

[jacobm3]

Description

What steps will reproduce the problem?

import time
time.sleep(10)

The red "stop" button above the IPython terminal window will not stop this code. I'm able to interrupt that code with Ctrl-C if I run it manually from iPython in the conda shell.

Versions

• Spyder version: 4.1.2
• Python version: 3.7.7
• Qt version: 5.9.6
• PyQt5 version: 5.9.2
• 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            :  1.4.1 (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                  :  2.5.0 (OK)
pyls >=0.31.9;<0.32.0          :  0.31.10 (OK)
qdarkstyle >=2.8               :  2.8.1 (OK)
qtawesome >=0.5.7              :  0.7.0 (OK)
qtconsole >=4.6.0              :  4.7.3 (OK)
qtpy >=1.5.0                   :  1.9.0 (OK)
rtree >=0.8.3                  :  0.9.4 (OK)
sphinx >=0.6.6                 :  3.0.3 (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                  :  0.29.17 (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)

[ccordoba12]

@dalthviz, could you reproduce this on Windows?

[jacobm3]

Confirmed the stop button works with a fresh install of Anaconda/Spyder in Ubuntu.

I was able to reproduce the problem on a different Windows 10 machine.

Following the troubleshooting instructions here:
https://github.com/spyder-ide/spyder/wiki/Troubleshooting-Guide-and-FAQ#standard-approach-to-isolating-problems

The problem exists in a bare Jupyter QtConsole. I'm not able to Ctrl-C break time.sleep() there. It runs until the sleep call times out.

[ccordoba12]

Ok, thanks for the extra check. There's some work right now (not by us) to make this work correctly on Windows.

[jacobm3]

In case anyone else gets stuck on this behavior in Spyder, the corresponding issue in Jupyter-QtConsole can be seen here:
jupyter/qtconsole#410