The pip library does not install the package I need, what should I do?

Question

Python

I downloaded the pip library, then tried to install py side but nothing happened ((
Please help because I don’t know English and I don’t understand this at all (
Here is the screen

Answer 1

Installing PyQt4sudo apt-get install python3-pyqt4

Answer 2

I answered this with a solution but I would like to install via pip

Well, just install via sudo , who's stopping you?! or depending on the Python you want to use. Sometimes you can do this: or In your case, you can do this: or pyqt4 at the end... Here is How to Install PyQt5 in Ubuntu 18.04 19.04 in English vidos how to do it...
sudo pip install ...........
sudo pip3 install ..........
sudo -H pip install ...........
sudo -H pip3 install ...........
sudo -H python3 -m pip install pyqt5