Mamba installation issue

[rswamina]

I am trying to update mamba to install a new development installation of ESMvalTool and ESMValCore under my home directory on JASMIN. The first step in that process was to update mamba.

When I execute

>mamba update --name base mamba conda

I get the following error message

Traceback (most recent call last):
  File "/home/users/ranjinis/miniforge3/condabin/mamba", line 7, in <module>
    from mamba.mamba import main
  File "/home/users/ranjinis/miniforge3/lib/python3.10/site-packages/mamba/mamba.py", line 18, in <module>
    from conda.cli.main import generate_parser, init_loggers
ImportError: cannot import name 'generate_parser' from 'conda.cli.main' (/home/users/ranjinis/miniforge3/lib/python3.10/site-packages/conda/cli/main.py)

I see that it is related to the GitHub issue here but I don't know how to follow their suggestion of removing all mamba/conda installations.
The current version of conda ia have is

>conda --version
conda 24.9.2

@valeriupredoi - Any suggestions?

[valeriupredoi]

best bet is to install with the latest miniconda installer then install mamba in (base) with conda install -c conda-forge mamba; if you'd like to keep the old infrastructure, but just update conda/mamba then run conda update -n base conda mamba (note the use of conda exceutable, not mamba) 🍺

[valeriupredoi]

doing that gives me:

valeriu@valeriu-PORTEGE-Z30-C:~$ mamba -V
mamba 1.5.11
conda 24.11.0

be careful with mamba>=2 - there are some compat issues with it

[valeriupredoi]

also, I'd really upgrade from Python 3.10 to 3.11 or 3.12 if I was you 😁 - the parser issue I think it's related to the new Configparser in Python 3.12 so it tries to update to a Python 3.12-compatible version in a Python 3.10 env

[rswamina]

Thanks..let me try these.

[bouweandela]

I don't know how to follow their suggestion of removing all mamba/conda installations.

Run rm -r /home/users/ranjinis/miniforge3 and then start fresh using these instructions: https://docs.esmvaltool.org/en/latest/quickstart/installation.html#mamba-conda-installation. You may want to check your ~/.bashrc file for any remaining mentions of the mamba/conda installation.

[valeriupredoi]

any luck on this @rswamina ? 🍺