Choose new interpreter from Conda is not responding

Scripting
1

Hello,

I’m new to Python4Capella and trying to set-up the python interpreters. I’m using mac os 13.4 and I have python installed via miniconda
When I go to “Preferences”>“PyDev”>“Interpreters”>“Python interpreter” then select “New”>“Choose from Conda” nothing happens.
I tried “Config Conda” and selected the Conda executable in a virtual env, i.e. “/Users/ea/miniconda3/envs/capylla/bin/python3.10” but still when I select “New”>“Choose from Conda” nothing happens.

Appreciate your help on how to solve this.

2

Hello,

It seems that you did not select the expected conda executable.
In you case, it should be: /Users/ea/miniconda3/bin/conda, then conda will locate its Python interpreter.

Regards

With macOS 13.5, Capella 6.1, Python4Capella add-on installed.

Python 3.11.4 installed with Homebrew 4.1.4

To have Python for Capella working, I followed the following steps:

  • in Capella > Settings > PyDev > Interpreters > Python Interpreters
    • or New… > Choose from list
      • choose one of the discovered python
        • /usr/local/bin/python or /usr/local/bin/python3 (which python or which python3 to check where points those aliases)
        • /opt/homebrew/bin/python3 for python installed via brew
        • /usr/bin/python3 for Python provided by XCode (3.9.6 on my side)
  • in Capella > Settings > Scripting > Python Scripting (Using Py4J)
  • Python location set to the the same Python than PyDev (same command name from PATH, or absolute location of the same interpreter from previous section)
  • Then fall back to default Python4Capella configuration steps to have Python4Capella project in script locations.

Python 3.11.3 installed with Conda

Miniconda3 py311_23.5.2-0

conda list
...
python                    3.11.4               hb885b13_0  
python.app                3               py311h80987f9_0
...

To have Python for Capella working, I followed the following steps:

  • in Capella > Settings > PyDev > Interpreters > Python Interpreters
    • or New… > Choose from Conda
      • it asked me for the conda executable
        • after executing where conda in a terminal to see the location where conda has been installed,
        • I used the browse button to locate and select the conda executable file which is for me /Users/userLogin/miniconda3/bin/conda
        • miniconda3 appears a a Python interpreter (unique one on my side after cleanup)
  • in Capella > Settings > Scripting > Python Scripting (Using Py4J)
    • I browsed to select the python3 file located in /Users/userLogin/miniconda3/bin/python3 (symbolic link, after validation I see /Users/userLogin/miniconda3/bin/python3.11 in the Python location)

Python from path

I I redo the whole configuration with New… > Config first in PATH in Python interpreters preference page and python in Python scripting page, it also works but this time it takes python from the System / Xcode installation:
Python version: 3.9.6 (default, May 7 2023, 23:32:44)
Executable path: /Applications/Xcode.app/Contents/Developer/usr/bin/python3

Addition to sample script

I have added the following snippet to the List_logical_functions_in_console.py sample script to check which Python version was executed when running the “List logical functions in console” menu from contextual menu of a Capella element displayed in Project Explorer view:

import sys
print("Python version:")
print (sys.version)
print("Version info:")
print(sys.version_info)
print("Executable path:")
print(sys.executable)

Regards

1 Like
3

Thanks Maxime, that was helpful.