Spyder uses global kernel regardless of venv in Ubuntu

[eafpres]

Problem Description

When running Spyder in different venvs under Ubuntu 20.04, the same kernel is used regardless of the venv.

What steps reproduce the problem?

1. Install Spyder 6.x in Ubuntu 20.04 using Spyder-6.0.0a4-Linux-x86_64.sh
2. Create a new venv e.g. python -m venv test_env
3. Activate venv e.g. source ~/test_env/bin/activate
4. Install Spyder in the new venv
5. Run Spyder, use Tools>Preferences>Python interpreter and set kernel to the new venv, e.g. /home/user/test_env/bin/python
6. Open new terminal, using base (default) env, run Spyder e.g. Spyder --new_instance
7. Check Tools>Preferences>Python interpreter;
8. It shows the other venv

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

Ideally Spyder would manage kernels by venv, not globally

Versions

• Spyder version: 6.0.0a4 (standalone)
• Python version: 3.10.13 64-bit
• Qt version: 5.15.8
• PyQt5 version: 5.15.9
• Operating System: Linux-5.15.153.1-microsoft-standard-WSL2-x86_64-with-glibc2.31

Dependencies

# Mandatory:
atomicwrites >=1.2.0              :  1.4.1 (OK)
chardet >=2.0.0                   :  5.2.0 (OK)
cloudpickle >=0.5.0               :  3.0.0 (OK)
cookiecutter >=1.6.0              :  2.5.0 (OK)
diff_match_patch >=20181111       :  20230430 (OK)
intervaltree >=3.0.2              :  3.1.0 (OK)
IPython >=8.13.0,<9.0.0,!=8.17.1  :  8.21.0 (OK)
jedi >=0.17.2,<0.20.0             :  0.19.1 (OK)
jellyfish >=0.7                   :  1.0.3 (OK)
jsonschema >=3.2.0                :  4.21.1 (OK)
keyring >=17.0.0                  :  24.3.0 (OK)
nbconvert >=4.0                   :  7.16.0 (OK)
numpydoc >=0.6.0                  :  1.6.0 (OK)
parso >=0.7.0,<0.9.0              :  0.8.3 (OK)
pexpect >=4.4.0                   :  4.9.0 (OK)
pickleshare >=0.4                 :  0.7.5 (OK)
psutil >=5.3                      :  5.9.8 (OK)
pygments >=2.0                    :  2.17.2 (OK)
pylint >=2.5.0,<3.1               :  3.0.3 (OK)
pylint_venv >=3.0.2               :  3.0.3 (OK)
pyls_spyder >=0.4.0               :  0.4.0 (OK)
pylsp >=1.10.0,<1.11.0            :  1.10.0 (OK)
pylsp_black >=2.0.0,<3.0.0        :  2.0.0 (OK)
pyuca >=1.2                       :  1.2 (OK)
qdarkstyle >=3.2.0,<3.3.0         :  3.2.3 (OK)
qstylizer >=0.2.2                 :  0.2.2 (OK)
qtawesome >=1.3.0                 :  1.3.0 (OK)
qtconsole >=5.5.1,<5.6.0          :  5.5.1 (OK)
qtpy >=2.4.0                      :  2.4.1 (OK)
rtree >=0.9.7                     :  1.2.0 (OK)
setuptools >=49.6.0               :  69.0.3 (OK)
sphinx >=0.6.6                    :  7.2.6 (OK)
spyder_kernels >=3.0.0b4,<3.0.0b5 :  3.0.0b4 (OK)
superqt >=0.6.1,<1.0.0            :  0.6.1 (OK)
textdistance >=4.2.0              :  4.5.0 (OK)
three_merge >=0.1.1               :  0.1.1 (OK)
watchdog >=0.10.3                 :  4.0.0 (OK)
xdg >=0.26                        :  0.28 (OK)
zmq >=22.1.0                      :  25.1.2 (OK)

# Optional:
cython >=0.21                     :  3.0.8 (OK)
matplotlib >=3.0.0                :  3.8.2 (OK)
numpy >=1.7                       :  1.26.4 (OK)
pandas >=1.1.1                    :  2.2.0 (OK)
scipy >=0.17.0                    :  1.12.0 (OK)
sympy >=0.7.3                     :  1.12 (OK)