How to install Python 3.7 on Raspberry Pi

This short guide explains how to install Python version 3.7.0 on a Raspberry Pi running Raspbian.
First, get rid of old versions:

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apt list –installed
sudo apt-get autoremove python*
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Ensure system is up to date:

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sudo apt-get update
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Install the dependencies needed for building the distribution:

• 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

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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
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Get the python src distribution:

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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
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Configure and compile (this might take an awful lot of time, depdning on your Raspberry’s performances):

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./configure –prefix=/usr/local/opt/python-3.7.0
make -j 4
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Install:

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sudo make altinstall
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Make aliases and default version:

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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
alias python=’/usr/bin/python3.7′
alias python3=’/usr/bin/python3.7′
ls /usr/bin/python*
cd ..
sudo rm -r Python-3.7.0
rm Python-3.7.0.tar.xz
. ~/.bashrc
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Check proper installation:

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python -V
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