installing playsound in python3

All right!
But is there any free python packages for editing and playing sounds?

Python packages are not installed via dpkg package manager. On my system, I have the following packages installed:

pipenv
python-pip-whl
python3-pip

And then use the following command to install python packages:

pip3 install -U package_name

The python package will be installed in /home/username/.local/bin

However, most pypi repositories require recent versions of said packages, whereas packages in Trisquel are gravely outdated, so it's not recommend to do it on Trisquel, unless you can manually update said packages and their dependencies.

Hello
You can add pip repositories in this way: (run in terminal)

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python3 get-pip.py
pip install playsound

But (be carful)...! in pip repository there is non-free softwares...