Conda

Manage Environments

• create environment: conda create --name <new_env_name>
• create environment with python 3.9: conda create --name <new_env_name> python=3.9
• activate environment: conda activate <env_name>
• deactivate (leave) environment: conda deactivate
• list available environments: conda info --envs
• remove environment: conda remove --name <env_name> --all

Updates

• update conda: conda update -n base -c defaults conda
• update all conda packages in current environment: conda update --all
• also see: https://docs.conda.io/projects/conda/en/latest/commands/update.html

Other Commands

• remove unused cached packages: conda clean -a - also see: https://docs.conda.io/projects/conda/en/latest/commands/clean.html
• disable automatic base activation: conda config --set auto_activate_base false - also see: https://stackoverflow.com/a/54560785/271118

Rename Conda Environment

Rename <src_env> to <target_env>:

conda create --name <target_env> --clone <src_env>
conda remove --name <src_env> --all

Installation

Conda installation on Linux

• download Miniconda (not Anaconda): https://conda.io/en/latest/miniconda.html#windows-installers
• download the 64 bit Miniconda3 for the highest Python version of your architecture
• change install file to executable: chmod +x Miniconda3-latest-Linux-x86_64.sh
• start installation: ./Miniconda3-latest-Linux-x86_64.sh
• use default settings
• log out and back in to activate new settings

Windows Install

• download Miniconda (not Anaconda): https://conda.io/en/latest/miniconda.html#windows-installers
• download Miniconda3 for the highest Python version
• preferably the 64 bit version
• proxy setup
  • add the following content to the .condarc file
  • located at C:\Users\<User>
  • <user> and <pass> are optional
  • some https settings use the http protocol and not https

proxy_servers:
  http: http://[<user>:<pass>@]corp.com:8080
  https: https://[<user>:<pass>@]corp.com:8080