How to install Python 3.10.7 from source

Published September 27, 2022

Installing Python 3.10.7 on Debian

The latest version of Python as of September 8, 2022 is 3.10.7. If you have Debian 10 or 11 and would like to install it, here are steps.

Table of Contents

Download Python 3.10.7 source

The latest Python source code is available here.

First, download and untar the latest Python source code.

cd /tmp/
wget https://www.python.org/ftp/python/3.10.7/Python-3.10.7.tgz
tar -xzvf Python-3.10.7.tgz
cd Python-3.10.7/

Now, install the build tools.

sudo apt install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev

./configure --enable-optimizations

Before running make, find the number of processors your server has using nproc.

nproc

You will see something like this:

Now, run make with the number of processors. This may take a while.

make -j 2

We will install Python under /usr/local/bin instead of overwriting the default Python installation under /usr/bin.

sudo make altinstall

This will install Python at /usr/local/bin/python3.10. To test the version, run this:

python3.10 -V

You will get this output:

Python 3.10.7

To make the default version of Python 3.10.7, run this:

sudo ln -s /usr/local/bin/python
sudo ln -s /usr/local/bin/python3.10 /usr/local/bin/python

Test whether Python 3.10.7 is the default version:

$ ls -al /usr/local/bin/python
lrwxrwxrwx 1 root root 25 Sep 6 00:09 /usr/local/bin/python -> /usr/local/bin/python3.10

python -V

The output will be:

Python 3.10.7

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Last Updated: September 27, 2022. This post was originally written on June 25, 2022.