Install Python 3.14 on Ubuntu 22.04

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Python is a high-level, interpreted, and general-purpose programming language known for its simple syntax and readability. It is widely used for web development, automation, data analysis, artificial intelligence, machine learning, system administration, and software development.

This guide explains how to install Python 3.14 on Ubuntu 22.04 from source without affecting the system Python version.

Method 1 - One-Line Installation (Quick Install)

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Installation Location:

Python will be installed at: /usr/local/bin/python3.14

Run the following command to install Python 3.14

apt update && apt install -y build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev libsqlite3-dev wget curl llvm libbz2-dev xz-utils tk-dev liblzma-dev && cd /usr/src && wget https://www.python.org/ftp/python/3.14.0/Python-3.14.0.tgz && tar xzf Python-3.14.0.tgz && cd Python-3.14.0 && ./configure --enable-optimizations && make -j$(nproc) && make altinstall

The one-line installation installs Python only. To install pip and configure a virtual environment, follow Step 5 and later steps from Method 2

Method 2 - Step-by-Step Installation

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Step 1: Update System and Install Dependencies

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apt update
apt install -y build-essential zlib1g-dev libncurses5-dev libgdbm-dev \
libnss3-dev libssl-dev libreadline-dev libffi-dev libsqlite3-dev \
wget curl llvm libbz2-dev xz-utils tk-dev liblzma-dev

Step 2: Download Python 3.14 Source Code

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cd /usr/src
wget https://www.python.org/ftp/python/3.14.0/Python-3.14.0.tgz
tar xzf Python-3.14.0.tgz
cd Python-3.14.0

Step 3: Compile and Install Python

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./configure --enable-optimizations
make -j$(nproc)
make altinstall

Use altinstall so the system Python is not overwritten.

Step 4: Verify Python Installation

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python3.14 --version

Step 5: Install pip for Python 3.14

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python3.14 -m ensurepip
python3.14 -m pip install --upgrade pip

Step 6: Set Python 3.14 as Default (Optional)

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update-alternatives --install /usr/bin/python python /usr/local/bin/python3.14 1
update-alternatives --config python

Step 7: Create Virtual Environment

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python3.14 -m venv myenv
source myenv/bin/activate

Uninstall Python 3.14 (If Needed)

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rm -rf /usr/local/bin/python3.14
rm -rf /usr/local/lib/python3.14