pyqt5 : Qlabel size setting

Qlabel_Adjustingsize.py

rom PyQt5.QtWidgets import * 
from PyQt5 import QtCore 
from PyQt5.QtGui import * 
import sys 
  
class Window(QMainWindow): 
    def __init__(self): 
        super().__init__() 
  
  
        # set the title 
        self.setWindowTitle("Label") 
  
        # setting  the geometry of window 
        self.setGeometry(0, 0, 400, 300) 
  
        # creating a label widget 
        self.label_1 = QLabel("== Normal Label ====", self) 
  
        # moving position 
        self.label_1.move(100, 100) 
  
        # setting up border 
        self.label_1.setStyleSheet("border: 1px solid black;") 
  
        # creating a label widget 
        self.label_2 = QLabel("====== Adjusted label =====", self) 
  
        # moving position 
        self.label_2.move(100, 150) 
  
        # setting up border 
        self.label_2.setStyleSheet("border: 1px solid black;") 
  
        # adjusting the size of label 
        self.label_2.adjustSize() 
  
  
        # show all the widgets 
        self.show() 
  
  
# create pyqt5 app 
App = QApplication(sys.argv) 
  
# create the instance of our Window 
window = Window() 
  
# start the app 
sys.exit(App.exec()) 

[Reference]
https://www.geeksforgeeks.org/pyqt5-how-to-auto-resize-label-adjustsize-qlabel/