Why does the terminal throw an error ModuleNotFoundError: No module named 'PyQt5.QtWidgets'; 'PyQt5' is not a package?

Question

PyQt

spoiler

The code itself:

import sys
from PyQt5.QtWidgets import QApplication, QWidget


if __name__ == '__main__':

    app = QApplication(sys.argv)

    w = QWidget()
    w.resize(800, 600)
    w.move(300, 300)
    w.setWindowTitle('Приложение')
    w.show()

    sys.exit(app.exec_())

spoiler

Mistake:

from PyQt5.QtWidgets import QApplication, QWidget
ModuleNotFoundError: No module named 'PyQt5.QtWidgets'; 'PyQt5' is not a package

Answer 1

The terminal screams that there are no such modules called 'PyQt5.QtWidgets'; 'PyQt5.
Maybe you mistyped the title?

Answer 2

Working example
Perhaps the launch is in the wrong environment