Why does the repeat F5 run get stuck when I set “remove all variables before execution”？

[A-Pai]

Why does the F5 run get stuck when I set “remove all variables before execution”？

I have to click the “remove all variables ” button in the console

the program is simple：
x=100
print('x=',x)
print('200 + 200 + 300=',200 + 200 + 300)

My version is：

[jrast]

I can confirm a similar behaviour. The runfile functions seems to freeze / block without running the file if the Remove all variables before execution option is checked.

Spyder Version Info:

• Spyder version: 5.1.0 None
• Python version: 3.7.7 64-bit
• 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                              :  4.0.0 (OK)
cloudpickle >=0.5.0                          :  1.6.0 (OK)
cookiecutter >=1.6.0                         :  1.7.3 (OK)
diff_match_patch >=20181111                  :  20200713 (OK)
intervaltree >=3.0.2                         :  3.1.0 (OK)
IPython >=7.6.0                              :  7.25.0 (OK)
jedi >=0.17.2;<0.19.0                        :  0.17.2 (OK)
jsonschema >=3.2.0                           :  3.2.0 (OK)
keyring >=17.0.0                             :  23.0.1 (OK)
nbconvert >=4.0                              :  6.1.0 (OK)
numpydoc >=0.6.0                             :  1.1.0 (OK)
paramiko >=2.4.0                             :  2.7.2 (OK)
parso >=0.7.0;<0.9.0                         :  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                               :  2.9.0 (OK)
pylint >=2.5.0                               :  2.9.6 (OK)
pyls_spyder >=0.4.0                          :  0.4.0 (OK)
pylsp >=1.2.0;<1.3.0                         :  1.2.0 (OK)
pylsp_black >=1.0.0                          :  None (OK)
qdarkstyle =3.0.2                            :  3.0.2 (OK)
qstylizer >=0.1.10                           :  0.2.0 (OK)
qtawesome >=1.0.2                            :  1.0.3 (OK)
qtconsole >=5.1.0                            :  5.1.1 (OK)
qtpy >=1.5.0                                 :  1.9.0 (OK)
rtree >=0.9.7                                :  0.9.7 (OK)
setuptools >=49.6.0                          :  57.4.0 (OK)
sphinx >=0.6.6                               :  4.1.2 (OK)
spyder_kernels >=2.1.0;<2.2.0                :  2.1.0 (OK)
textdistance >=4.2.0                         :  4.2.1 (OK)
three_merge >=0.1.1                          :  0.1.1 (OK)
watchdog >=0.10.3                            :  2.1.3 (OK)
zmq >=17                                     :  22.1.0 (OK)

# Optional:
cython >=0.21                                :  None (OK)
matplotlib >=2.0.0                           :  3.4.2 (OK)
numpy >=1.7                                  :  1.21.1 (OK)
pandas >=1.1.1                               :  1.3.1 (OK)
scipy >=0.17.0                               :  1.7.0 (OK)
sympy >=0.7.3                                :  None (OK)

# Spyder plugins:
spyder.plugins.completion.plugin 5.1.0       :  5.1.0 (OK)
spyder.plugins.outlineexplorer.plugin 5.1.0  :  5.1.0 (OK)
spyder.plugins.projects.plugin 5.1.0         :  5.1.0 (OK)
spyder.plugins.variableexplorer.plugin 5.1.0 :  5.1.0 (OK)

[A-Pai]

What's the trouble？What should I do？

[dalthviz]

Hi @A-Pai and @jrast for the feedback, I'm not being able to reproduce this. Could you guys submit a GIF or video to understand better what you refer to the freeze/block? Here a preview of the behavior I'm seeing on my side:

[A-Pai]

Hi @A-Pai and @jrast for the feedback, I'm not being able to reproduce this. Could you guys submit a GIF or video to understand better what you refer to the freeze/block? Here a preview of the behavior I'm seeing on my side:

This is what happened to me：

20210804_221257.mp4

[dalthviz]

Thanks for the video @A-Pai ! Something strange is happening there indeed. Did you install Spyder with pip?

[A-Pai]

Thanks for the video @A-Pai ! Something strange is happening there indeed. Did you install Spyder with pip?

yes，I upgrade it by pip，conda cannot upgrade it

[dalthviz]

If you mixed conda and pip packages maybe that's the source of the problem. If you use conda, could you create a new env and install there Spyder version 5.0.5 and test again if the code execution gets stuck? (version 5.0.5 in the latest correct version, we yanked Spyder 5.1.0 and we are working in doing the fixes of problems we found there to release version 5.1.1). Let us know :)

[A-Pai]

If you mixed conda and pip packages maybe that's the source of the problem. If you use conda, could you create a new env and install there Spyder version 5.0.5 and test again if the code execution gets stuck? (version 5.0.5 in the latest correct version, we yanked Spyder 5.1.0 and we are working in doing the fixes of problems we found there to release version 5.1.1). Let us know :)

I reinstalled anaconda(Anaconda3-2021.05-Windows-x86_64),then:
1.conda update conda
2.conda update anaconda
3.conda update spyder
when I start spyder,it appear:

in fact,I found out I had it by "conda list"

what is wrong?

[jrast]

I updated to version 5.1.1 today (using pip install -U spyder) and it seems like the problem persists.

[jrast]

I also downloaded the Spyder Installer for Windows and tried to replicate the issue. Seems like it's working in the installer version. So I compared the installed dependencies:

# Package differences            Pip Install       Spyder Installer
intervaltree >=3.0.2          :  3.1.0 (OK)        None (OK)
IPython >=7.6.0               :  7.25.0 (OK)       7.26.0 (OK)
jedi >=0.17.2;<0.19.0         :  0.17.2 (OK)       0.18.0 (OK)
parso >=0.7.0;<0.9.0          :  0.7.0 (OK)        0.8.2 (OK)
qstylizer >=0.1.10            :  0.2.0 (OK)        0.2.1 (OK)
zmq >=17                      :  22.1.0 (OK)       22.2.0 (OK)

cython >=0.21                 :  None (OK)         0.29.24 (OK)
numpy >=1.7                   :  1.21.1 (OK)       1.19.3 (OK)
scipy >=0.17.0                :  1.7.0 (OK)        1.7.1 (OK)

I tried to update the ones which i expected to provoke the bug:

pip install -U "IPython==7.26.0" "zmq==22.2.0" "jedi==0.18.0" spyder

This did not solve the problem, but it possibly gave a hint about an issue as jedi 0.18.0 is not compatible with python-language-server, so I uninstalled the packages related to the language server and "updated" spyder:

pip uninstall python-language-server python-lsp-server pyls-spyder
pip install -U spyder

This installed pyls-spyder-0.4.0 and python-lsp-server-1.2.1 and now the bug seems to be solved. So maybe there is an issue if python-language-server and python-lsp-server is installed at the same time?

[A-Pai]

I have to use spyder4.2.5 which came with Anaconda3-2021.05
why did not the latest anaconda update the spyder? It could be a performance issue

[dalthviz]

Thank you for the feedback @jrast and @A-Pai !

@jrast did you were having the same behavior as @A-Pai shows in his video when executing? In the other hand, there were issues regarding the LSP in the previous yanked release (5.1.0) so I think that's the case (the old packages used for the LSP are incompatible with the new ones and also with the updated done to use Jedi 0.18) pinging @ccordoba12 just in case.

@A-Pai I think the latest version with fixes in conda is not yet released, if you want to try the new Spyder version I suggest for you to create a new env and there install Spyder 5.0.5 with the conda-forge channel to see if the error persists (You can do it by running something like conda create -n spyder5 -c conda-forge spyder=5.0.5)

[jrast]

Yes, I had the same and very simmilar issues as show by @A-Pai. And it seems like the issue is not fixed with the steps shown above. Some scripts now run as expected, others still block / behave as show in the video.