Managing programming environments

Managing programming environments#

Installing pyenv#

$ git clone https://github.com/pyenv/pyenv.git ./.pyenv
$ echo -e "export PATH=\"\$HOME/.pyenv/bin:\$PATH\"\neval \"\$(pyenv init --path)\"\n" > start-pyenv
$ chmod +x start-pyenv

Starting pyenv#

$ cd ~
$ source ./start-pyenv

Listing available python systems#

$ pyenv install --list

Installing a python system#

The following example installs CPython version 3.9.16

$ pyenv install 3.9.16

Listing installed python systems#

$ pyenv versions

Changing the selected python system#

In the following example, the working python system is set to CPython version 3.9.16

$ pyenv global 3.9.1

Using the currently selected python system#

$ python

Virtual python environments#

The following assumes you have installed and started pyenv

Creating a new environment#

$ mkdir project-1
$ cd project-1
$ python -m venv env

Starting an existing environment#

$ cd project-1
$ source ./env/bin/activate

Stop a running environment#

$ deactivate

Removing an environment#

$ rm -rf project-1

Useful resources#

An introduction to python virtual environments

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