Installing Python 3.7 on Raspberry Pi

This short guide explains how to install Python version 3.7.0 on a Raspberry Pi running Raspbian aswell as other Debian based Linux distributions including Ubuntu.

First install the dependencies needed to build

sudo apt-get update
sudo apt-get install -y build-essential tk-dev libncurses5-dev libncursesw5-dev libreadline6-dev libdb5.3-dev libgdbm-dev libsqlite3-dev libssl-dev libbz2-dev libexpat1-dev liblzma-dev zlib1g-dev libffi-dev

Compile and install
wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xz
tar xf Python-3.7.0.tar.xz
cd Python-3.7.0
./configure --prefix=/usr/local/opt/python-3.7.0

make
sudo make install

Make Python 3.7 the default version
sudo ln -s /usr/local/opt/python-3.7.0/bin/pydoc3.7 /usr/bin/pydoc3.7
sudo ln -s /usr/local/opt/python-3.7.0/bin/python3.7 /usr/bin/python3.7
sudo ln -s /usr/local/opt/python-3.7.0/bin/python3.7m /usr/bin/python3.7m
sudo ln -s /usr/local/opt/python-3.7.0/bin/pyvenv-3.7 /usr/bin/pyvenv-3.7
sudo ln -s /usr/local/opt/python-3.7.0/bin/pip3.7 /usr/bin/pip3.7

Cleanup afterwards:
sudo rm -r Python-3.7.0
rm Python-3.7.0.tar.xz

And verify:

python -V

This should return 3.7.0

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