Stable library from PyPi:

• Just run sudo pip install enviroplus

(Note that you're best using the git clone / install.sh method below if you want all of the UART serial configuration for the PMS5003 particulate matter sensor to run automatically)

Latest/development library from GitHub:

• git clone https://github.com/pimoroni/enviroplus-python
• cd enviroplus-python
• sudo ./install.sh