Conda/Mamba tips and tricks

Downgrading Conda Version

conda config --set allow_conda_downgrades true
conda install conda=a.b.c   # version you want to install

Speedup Conda

This page describes how to speed up conda operation

some examples are,

conda config --add channels bioconda

conda config --set channel_priority strict

conda config --set safety_checks disabled

Conda commands

Commands	Description	Options	Notes
conda update conda	update the conda package manager to the latest version
conda update anaconda	use conda to update Anaconda to the latest version
conda install anaconda=VERSION-NUMBER	use conda to install a specific version of Anaconda
conda config --add channels conda-forge	Add conda channel		Update channels section of ~/.condarc file
conda config --set channel_priority strict	Set channel priority policy
conda config --show-sources	Show config status
conda update --all --verbose	Update all conda with printout
conda list --show-channel-urls	Listup conda channels
conda search -f python	search available python version	Search can be extened with channels$ cat ~/.condarcchannels:- conda-forge- bioconda- defaults	Conda only has support for Python 3.8+ on the osx-arm64 To search alternative platforms, can use the --subdir, --platform argument to specify, $conda search --subdir osx-64 python=3.6 or set the subdir configuration temporarily through the CONDA_SUBDIR environment variable: CONDA_SUBDIR=osx-64 conda search python=3.6