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Installing Python 3.11

This guide outlines the steps to install Python 3.11 on macOS, Linux, and Windows.

macOS

Using Homebrew (recommended)

brew install [email protected]

To make it your default:

echo 'export PATH="/opt/homebrew/opt/[email protected]/bin:$PATH"' >> ~/.zprofile
source ~/.zprofile

Verify

python3.11 --version

Linux

Debian/Ubuntu (apt)

sudo apt update
sudo apt install -y software-properties-common
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install -y python3.11 python3.11-venv python3.11-dev

Red Hat/Fedora

sudo dnf install -y python3.11

From Source (all distros)

sudo apt install -y build-essential libssl-dev zlib1g-dev libbz2-dev \
libreadline-dev libsqlite3-dev wget curl llvm libncursesw5-dev \
xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev

cd /usr/src
sudo wget https://www.python.org/ftp/python/3.11.0/Python-3.11.0.tgz
sudo tar xvf Python-3.11.0.tgz
cd Python-3.11.0
sudo ./configure --enable-optimizations
sudo make -j "$(nproc)"
sudo make altinstall

Verify

python3.11 --version

Windows

  1. Download the installer: https://www.python.org/downloads/release/python-3110/

  2. Run the installer:

    • Select "Add Python 3.11 to PATH"
    • Choose "Customize installation" if needed
    • Click Install Now

  3. After installation, open PowerShell or CMD:

python --version

To ensure Python 3.11 runs:

py -3.11

Create a Virtual Environment

python3.11 -m venv .venv
source .venv/bin/activate  # On Windows: .venv\Scripts\activate