Manage multiple python versions with pyenv

certainly! managing multiple python versions on your system can be essential for development, especially when different projects require different versions of python. one of the most popular tools for managing multiple python versions is `pyenv`. this tutorial will guide you through the process of installing and using `pyenv` to manage python versions.

### what is pyenv?

`pyenv` is a simple yet powerful tool that allows you to easily switch between multiple versions of python. it installs versions of python in isolated environments, so you can have different versions for different projects without conflicts.

### prerequisites

1. a unix-like operating system (linux, macos, etc.). windows users can use windows subsystem for linux (wsl) or other similar tools.
2. basic knowledge of the command line.

### installation

#### step 1: install dependencies

before installing `pyenv`, you need to install some dependencies. open your terminal and run the following commands:

for **ubuntu/debian**:

for **macos** (using homebrew):

#### step 2: install pyenv

you can install `pyenv` using git. run the following commands in your terminal:

this command will clone the `pyenv` repository into `~/.pyenv`.

#### step 3: configure your shell

after installation, you need to add `pyenv` to your shell startup script. you can do this by adding the following lines to your `~/.bashrc`, `~/.zshrc`, or `~/.bash_profile` depending on the shell you use:

after adding the lines, restart your terminal or source the file:

#### step 4: verify installation

to verify that `pyenv` is installed correctly, run:

### using pyenv

#### step 5: install python versions

you can install different versions of python using `pyenv`. to see a list of all available versions, run:

to install a specific version of python, use the command:

you can install multiple versions:

#### step 6: set global python version

to set a global python version (the default version used in your shell), ...

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