​ Installing Python

Download and extract the latest version of Python 3:

cd /opt
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sudo wget https://www.python.org/ftp/python/3.8.0/Python-3.8.0.tgz
​
sudo tar xzf Python-3.8.0.tgz

Install the dependencies:

sudo apt-get install build-essential checkinstall
​
sudo apt-get install libreadline-gplv2-dev libncursesw5-dev libssl-dev \
    libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev libffi-dev zlib1g-dev

Run configure with optimizations and make install from the source:

cd Python-3.8.0
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sudo ./configure --enable-optimizations
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make altinstall

Update the link to the newly installed version of Python 3:

ln -s /usr/local/bin/python3.8 /usr/local/bin/python3

Restart your device in order to make sure Python 3 version is updated

Test your installation:

python3 --version
​
Python 3.8.0

Installing MQTT Client

This documentation uses Paho MQTT as a client library.

Make sure pip3 is installed before installing the library:

sudo apt-get -y install python3-pip
​
sudo apt-get update

Install the library by running the following command:

pip3 install paho-mqtt

Connect Device

Start connecting devices by following the guide :