Compiling and Installing Python 3.7 b5 on Raspberry Pi

Python3.7 is scheduled to be released at the end of June 2018. I wanted to explore some of the new things and put it on a Raspberry PI. Here are the instructions.

Building python 3.7 beta on Raspberry Pi

based on steps found at

my steps

Choose a Pi

# Pi 3 B+
ssh rpihp1
screen -R
$ df -h .
Filesystem      Size  Used Avail Use% Mounted on
/dev/root        59G  1.2G   55G   3% /

plenty of disk space. (after python3.7b5 install, I had about 400MB less disk space)

Install some pre-reqs

sudo apt install -y libffi-dev libbz2-dev liblzma-dev \
    libsqlite3-dev libncurses5-dev libgdbm-dev zlib1g-dev \
    libreadline-dev libssl-dev tk-dev build-essential \
    libncursesw5-dev libc6-dev openssl git

We are going to build from Python source code.

Download, extract, configure, compile and install

mkdir -p ~/projects/python37
tar zxvf v3.7.0b5.tar.gz
cd cpython-3.7.0b5
./configure --prefix=$HOME/.local --enable-optimizations

make -j 5 -l 4  # quad core, so set j=4+1
make install

Note: It’s kinda fun to watch htop updated when the compilation is running…

Once installed, setup environment in your ~/.profile to add the new home of python3.7 to your path:

# set PATH so it includes user's private ~/.local/bin if it exists
if [ -d "$HOME/.local/bin" ] ; then

log out of all shells to get this new setting


Tkinter is included…

pi@rpihp1:~ $ python3.7
Python 3.7.0b5 (default, Jun 10 2018, 16:24:31)
[GCC 6.3.0 20170516] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from tkinter import *
>>> ^D

The New-in-3.7 @dataclass decorator is available

>>> from dataclasses import dataclass
>>> @dataclass
... class SimpleDataObject(object):
...   '''
...   In this case,
...   __init__, __repr__, __eq__,  will all be generated automatically.
...   '''
...   field_a: int
...   field_b: str
>>> example = SimpleDataObject(1, 'b')
>>> print(example)  # SimpleDataObject(field_a=1, field_b='b')
SimpleDataObject(field_a=1, field_b='b')
Published on June 11, 2018