System Setupbash

How to Install Python on Unsupported Environments in Ubuntu Using pyenv?

Install python on unsupported environment

Utilizes pyenv to install Python 3.10.15 on Ubuntu environments where direct installations fail, facilitating Python version management.

Introduction

Many Ubuntu environments, especially minimal or containerized ones, lack up-to-date Python versions or have restrictions preventing direct install via package managers. This snippet uses pyenv, a popular Python version management tool, to install Python 3.10.15 independently of system packages. This approach solves common challenges developers face when the native Python installation is insufficient or outdated, enabling seamless switching between multiple Python versions for testing and development.

bash
pyenv official GitHub repository
1curl https://pyenv.run | bash
2

3# Install Python 3.10
4pyenv install 3.10.15
5pyenv global 3.10.15

Understanding This Code

What It Does

Automatically installs pyenv and configures Python 3.10.15 as the global interpreter.

When To Use

Use in environments where system Python installation is unsupported or outdated.

Prerequisites

  • •Curl installed
  • •Basic shell access
  • •Build dependencies for Python compilation (gcc, make, etc.)

Key Concepts

Important ideas to understand in this code

pyenv

A tool to easily switch between multiple versions of Python.

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Python 3.10.15

A stable Python release version installed via pyenv for development and compatibility.

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Build dependencies

Required system packages for compiling Python from source when using pyenv.

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Step-by-Step Tutorial

Follow along to understand how this code works

1

Install pyenv

Run the convenient installer script to download and setup pyenv in your environment.

bash
curl https://pyenv.run | bash
Next Step
2

Configure shell environment

Follow the post-install instructions to add pyenv to your shell's PATH and initialize it.

bash
export PATH="$HOME/.pyenv/bin:$PATH"
eval "$(pyenv init --path)"
eval "$(pyenv virtualenv-init -)"
Next Step
3

Install Python 3.10.15

Use pyenv to download, compile, and install the specified Python version.

bash
pyenv install 3.10.15
Next Step
4

Set Python 3.10.15 as global default

Configure pyenv to use this Python version globally across your user session.

bash
pyenv global 3.10.15

Common Issues & Solutions

Troubleshoot problems you might encounter