random_password_generator using python and pyqt5

import random as r

import string as s

import sys

from PyQt5.QtWidgets import *

def random_generate():

    l_password=[]

    len_passwd,dailog_box = QInputDialog.getInt(window,"Dailog","Enter the  length of the Password ")

    if len_passwd<=0:

        mbox_1 = QMessageBox()

        mbox_1.setText("Your Password Is")

        mbox_1.resize(150,150)

        mbox_1.move(250,200)

        mbox_1.setStyleSheet("background-color:#B34AFE;")

        mbox_1.setDetailedText("Invalid Length")

        mbox_1.exec()

    else:

        for i in range(len_passwd):

            l_password.append(r.choice(s.digits+s.ascii_letters))

        mbox = QMessageBox()

        mbox.setText("Your Password Is")

        mbox.resize(150,150)

        mbox.move(250,200)

        mbox.setStyleSheet("background-color:#B34AFE;")

        mbox.setDetailedText("".join(l_password))

        mbox.exec()

if __name__ == "__main__":

    app = QApplication(sys.argv)

    window= QWidget()

    window.resize(500,500)

    window.setWindowTitle('Password Generator')

    window.setStyleSheet("background-color:#B34AFE;")

    label=QLabel(window)

    label.setStyleSheet("color:black")

    label.setText('Click Here To Generate!')

    label.move(180,210)

    label.show()

    btn=QPushButton(window)

    btn.setText('Generate')

    btn.move(206,240)

    btn.show()

    btn.resize(100,35)

    btn.setStyleSheet("background-color:black;color:#FFFFFF")

    btn.clicked.connect(random_generate)

    window.show()

    sys.exit(app.exec_())