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pyenv cheatsheet

pyenv

pyenv-virtualenv

Command reference

  $ curl https://pyenv.run | bash
  $ git clone https://github.com/yyuu/pyenv-virtualenv.git ~/.pyenv/plugins/pyenv-virtualenv  # if pyenv virtualenv-init not found, clone this repository.

pyenv

pyenv install

List available python versions:

    $ pyenv install -l

Install Python 3.10:

    $ PYTHON_CONFIGURE_OPTS="--enable-framework" pyenv install 3.10  # enable framework to avoid errors like "ModuleNotFoundError: No module named '_lzma'"
    $ pyenv rehash

Make sure the libssl and liblzma has been install to avoid "ModuleNotFoundError: No module named '_lzma' WARNING: The Python lzma extension was not compiled. Missing the lzma lib? ": https://github.com/pyenv/pyenv/wiki#suggested-build-environment

    $ apt update && apt install build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev curl git libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev
    $ apt-get install libffi-dev # to avoid error of ModuleNotFoundError: "The _ctypes module is not available."
    $ pyenv install 3.12

pyenv virtualenv

$ git clone https://github.com/pyenv/pyenv-virtualenv.git $(pyenv root)/plugins/pyenv-virtualenv echo 'eval "$(pyenv init -)"' >> ~/.bashrc echo 'eval "$(pyenv virtualenv-init -)"' >> ~/.bashrc

echo 'eval "$(pyenv init -)"' >> ~/.zshrc echo 'eval "$(pyenv virtualenv-init -)"' >> ~/.zshrc eval "$(pyenv init -)" eval "$(pyenv virtualenv-init -)"

pyenv versions

List installed versions:

    $ pyenv versions

pyenv local

Sets a local application-specific Python version:

    $ pyenv local 2.7.6

Unset the local version:

    $ pyenv local --unset

pyenv-virtualenv

List existing virtualenvs

    $ pyenv virtualenvs

Create virtualenv

From current version with name "venv35":

    $ pyenv virtualenv venv35

From version 2.7.10 with name "venv27":

    $ pyenv virtualenv 2.7.10 venv27

Activate/deactivate

    $ pyenv activate <name>
    $ pyenv deactivate

Delete existing virtualenv

    $ pyenv uninstall venv27

pipenv

install packages

    $ pipenv install <package_name>