代码:
import sys
from PyQt5.QtWidgets import QApplication, QLabel
if name == '__main__':
app = QApplication(sys.argv) # 1
label = QLabel('1') # 2
label.show() # 3
sys.exit(app.exec_()) # 4
提示:
ModuleNotFoundError: No module named 'PyQt5.Qt'; 'PyQt5' is not a package