E22 RPi library installation error

Attempting to install https://github.com/xreef/EByte_LoRa_E22_python_raspberrypi_library I got this error: pi@RPiZero:~ $ pip install ebyte-lora-e22-rpi Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple Collecting ebyte-lora-e22-rpi Downloading https://www.piwheels.org/simple/ebyte-lora-e22-rpi/ebyte_lora_e22_rpi-0.0.2-py3-none-any.whl (18 kB) ERROR: Could not find a version that satisfies the requirement json (from ebyte-lora-e22-rpi) ERROR: No matching distribution found for json What have I done to deserve this?! Thanks for the library.