ModuleNotFoundError: No module named 'humanfriendly'

[rnxm]

I installed humanfriendly so that my discord bot's mute command is usable as a tempmute command too. However, for some reason, even tho if I type humanfriendly into the console and it actually shows the help message

root@vmi476883:~/dom/JixBot# humanfriendly
Usage: humanfriendly [OPTIONS]

Human friendly input/output (text formatting) on the command
line based on the Python package with the same name.

it gives me this error: ModuleNotFoundError: No module named 'humanfriendly'. what should I do?