Spyder 5.1.1 freezes trying open file

Problem Description

Spyder completely freezes when clicking open file.

What steps reproduce the problem?

1. Install the latest miniconda (python 3.9).
2. Install spyder 5.1.1 from conda-forge:
3. Click on open file.

What is the expected output? What do you see instead?

Spyder should show the file browser.

Spyder window completely freeezes, no log on terminal, no errors, no anything. The only possible thing to do is killing the process.

“spyder --safe-mode” changes nothing. “spyder --reset” changes nothing. Removing the entire .config/spyder-py3 folder changes nothing.

Versions

• Spyder version: 5.1.1
• Python version: Python 3.9.5 64-bit
• Qt version: Qt 5.9.7
• PyQt version: PyQt5 5.9.
• Operating System name/version: Kde neon

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          :  3.0.2 (OK)
IPython >=7.6.0               :  7.26.0 (OK)
jedi >=0.17.2;<0.19.0         :  0.18.0 (OK)
jsonschema >=3.2.0            :  3.2.0 (OK)
keyring >=17.0.0              :  23.1.0 (OK)
nbconvert >=4.0               :  6.1.0 (OK)
numpydoc >=0.6.0              :  1.1.0 (OK)
parso >=0.7.0;<0.9.0          :  0.8.2 (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                :  2.10.0 (OK)
pylint >=2.5.0                :  2.7.2 (OK)
pyls_spyder >=0.4.0           :  0.4.0 (OK)
pylsp >=1.2.1;<1.3.0          :  1.2.1 (OK)
pylsp_black >=1.0.0           :  None (OK)
qdarkstyle =3.0.2             :  3.0.2 (OK)
qstylizer >=0.1.10            :  0.2.1 (OK)
qtawesome >=1.0.2             :  1.0.3 (OK)
qtconsole >=5.1.0             :  5.1.1 (OK)
qtpy >=1.5.0                  :  1.10.0 (OK)
rtree >=0.9.7                 :  0.9.7 (OK)
setuptools >=49.6.0           :  52.0.0.post20210125 (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)
xdg >=0.26                    :  0.27 (OK)
zmq >=17                      :  19.0.2 (OK)

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

[Zincr0]

If you leave some hints here about what and where to look, maybe i can find a better workaround or even tweak some code

[ccordoba12]

@derek-v-s, problems with Linux distros need to be reported with them because we don’t have control on the way they package Spyder and its dependencies.

If you want to avoid that error, please install Spyder in a virtualenv with pip or download Anaconda/Miniconda.