Conda severely broken after attempting mamba install

Question

[kacollier]

All,

Swayed by the promises of faster execution times, I recently attempted to install mamba instead of conda for package management. Due to probable user idiocy, I now have neither a functional conda or mamba distribution.

I'm trying to root both out of the system and do a clean install. I found and removed mamba fairly easily from my Finder window (running 'which mamba' returns 'mamba not found'), but miniconda/anaconda has proven more stubborn.

Output for 'which conda' yields the following:

conda () {
        \local cmd="${1-__missing__}"
        case "$cmd" in
                (activate | deactivate) __conda_activate "$@" ;;
                (install | update | upgrade | remove | uninstall) __conda_exe "$@" || \return
                        __conda_reactivate ;;
                (*) __conda_exe "$@" ;;
        esac
}
(base) 

I'm not sure how to interpret this - I assume that some internal python3 file is missing or not found. Possibly pycostat, given the SAT solver errors in installing and creating environments?

conda install -c conda-forge biopython # code to generate error

/opt/homebrew/Caskroom/miniforge/base/lib/python3.10/site-packages/conda_package_streaming/package_streaming.py:19: UserWarning: zstandard could not be imported. Running without .conda support.
  warnings.warn("zstandard could not be imported. Running without .conda support.")
/opt/homebrew/Caskroom/miniforge/base/lib/python3.10/site-packages/conda_package_handling/api.py:29: UserWarning: Install zstandard Python bindings for .conda support
  _warnings.warn("Install zstandard Python bindings for .conda support")
Collecting package metadata (repodata.json): done
Solving environment: / WARNING conda.resolve:_get_sat_solver_cls(62): Could not run SAT solver through interface 'pycosat'.
failed with initial frozen solve. Retrying with flexible solve.

CondaDependencyError: Cannot run solver. No functioning SAT implementations available.

I know there are a thousand versions of the "I can't get 'x' program to work, help" question out there, but I am genuinely puzzled on how to resolve this. Any help or clarity you can provide would be appreciated, and I can provide any other information that might be helpful.

[andres.firrincieli]

I have been there... I just reinstalled conda.

[Quentin]

mamba deactivate

mamba activate (your envirnment name here)

Then do:

cat ~/.condarc

conda config --remove channels defaults

conda config --remove channels conda-forge

conda config --remove channels bioconda

cat ~/.condarc