Black doesn't autoformat code on save

Problem Description

I updated Spyder to the latest version. Now I get a popup “completion and linting in the editor spyder error”, like this:

which I guess prevents Black from operating.

In the preferences I have the box ticked to autoformat code on save via Black, but nothing happens on save. Selecting some code lines and right clicking on the editor has the option for Black disabled (you cannot click on it) - same with the shortcut.

According to this SO post, this might be a firewall problem, but that doesn’t apply to me because the firewall options are managed by my organization, and nothing has changed in my Windows 10 desktop.

This broke when I updated Spyder. Can you please help?

Versions

• Spyder version: 5.3.0
• Python version: 3.8.10
• Qt version: 5.15.2
• PyQt version: 5.15.6
• OS version: Windows 10

Dependencies

Dependencies

# Mandatory:
atomicwrites >=1.2.0                 :  1.4.0 (OK)
chardet >=2.0.0                      :  4.0.0 (OK)
cloudpickle >=0.5.0                  :  2.0.0 (OK)
cookiecutter >=1.6.0                 :  1.7.3 (OK)
diff_match_patch >=20181111          :  20200713 (OK)
intervaltree                         :  None (OK)
IPython >=7.31.1;<8.0.0              :  7.32.0 (OK)
jedi >=0.17.2;<0.19.0                :  0.18.1 (OK)
jellyfish >=0.7                      :  0.9.0 (OK)
jsonschema >=3.2.0                   :  4.4.0 (OK)
keyring >=17.0.0                     :  23.5.0 (OK)
nbconvert >=4.0                      :  6.4.5 (OK)
numpydoc >=0.6.0                     :  1.2.1 (OK)
paramiko >=2.4.0                     :  2.10.3 (OK)
parso >=0.7.0;<0.9.0                 :  0.8.3 (OK)
pexpect >=4.4.0                      :  4.8.0 (OK)
pickleshare >=0.4                    :  0.7.5 (OK)
psutil >=5.3                         :  5.9.0 (OK)
pygments >=2.0                       :  2.11.2 (OK)
pylint >=2.5.0                       :  2.13.3 (OK)
pyls_spyder >=0.4.0                  :  0.4.0 (OK)
pylsp >=1.4.1;<1.5.0                 :  1.4.1 (OK)
pylsp_black >=1.2.0                  :  1.2.0 (OK)
qdarkstyle >=3.0.2;<3.1.0            :  3.0.3 (OK)
qstylizer >=0.1.10                   :  0.2.1 (OK)
qtawesome >=1.0.2                    :  1.1.1 (OK)
qtconsole >=5.3.0;<5.4.0             :  5.3.0 (OK)
qtpy >=2.0.1                         :  2.0.1 (OK)
rtree >=0.9.7                        :  0.9.7 (OK)
setuptools >=49.6.0                  :  61.2.0 (OK)
sphinx >=0.6.6                       :  4.5.0 (OK)
spyder_kernels >=2.3.0;<2.4.0        :  2.3.0 (OK)
textdistance >=4.2.0                 :  4.2.2 (OK)
three_merge >=0.1.1                  :  0.1.1 (OK)
watchdog                             :  2.1.7 (OK)
zmq >=17                             :  22.3.0 (OK)

# Optional:
cython >=0.21                        :  0.29.28 (OK)
matplotlib >=3.0.0                   :  3.5.1 (OK)
numpy >=1.7                          :  1.22.3 (OK)
pandas >=1.1.1                       :  1.4.1 (OK)
scipy >=0.17.0                       :  1.8.0 (OK)
sympy >=0.7.3                        :  1.10.1 (OK)

# Spyder plugins:
spyder_terminal.terminalplugin 1.2.2 :  1.2.2 (OK)

[gsamaras]

So I deleted everything and started fresh, now all it’s good, thanks for your help!

[dalthviz]

Well the UserWarning means that somehow there are more files in the installation than expected. Could you manually uninstall Spyder and reinstall it please? Not totally sure how but seems like your previous installation left some files and then reusing the installation directory caused some files appear as duplicated.

Checking on my local installation with the installer I have only libopenblas.EL2C6PLE4ZYW3ECEVIV3OXXGRN2NRFM2.gfortran-win_amd64.dll

Maybe after unistalling you could check if C:\Users\gsamaras\AppData\Local\Programs\Spyder is actually empty or doesn’t exist and if that is not the case remove it manually.

Let us know if something of the above helps!