PI3B, Buster. I have installed both python3 and pip3 but when I use pip3 to install pyserial I get a no module error. The wrong directory is being used. How can I fix it please? volumio@pnbvolumio:~$ sudo python -m pip3 install pyserial /usr/bin/python3: No module named pip3 volumio@pnbvolumio:~$ pip3 --version pip 18.1 from /usr/lib/python3/dist-packages/pip (python 3.7)

CodePudding user response：

Using pip with sudo is not a good idea.
Read more here

Try to install pyserial using this command:

python3 -m pip install pyserial

You can also try to instal it for current user only:

python3 -m pip install pyserial --user

Also consider using virtual environmet to manage multiple environments and hassle free module managing.