import sys
from PyQt5 import QtCore, QtGui, QtWidgets
import start_menu, dialog, login, registration
import mysql.connector
import random
import datetime
class Reg(QtWidgets.QDialog, registration.Ui_registration):
def __init__(self):
super().__init__()
self.setupUi(self)
self.enterstr.returnPressed.connect(self.dinamic)#enterstr это QLineEdit
def dinamic(self):
self.keyholdtime.setText("hhh")
..........
import sys
from PyQt5 import QtCore, QtWidgets
from PyQt5.QtWidgets import QMainWindow, QLabel, QGridLayout, QWidget
from PyQt5.QtCore import QSize
class ExampleWindow(QMainWindow):
def __init__(self):
super().__init__()
self.setMinimumSize(QSize(320, 240))
self.setWindowTitle('Example')
central_widget = QWidget(self)
grid_layout = QGridLayout(central_widget)
self.setCentralWidget(central_widget)
self._label = QLabel('', self)
self._label.setAlignment(QtCore.Qt.AlignCenter)
grid_layout.addWidget(self._label, 0, 0)
self._counter = 0
def keyPressEvent(self, event):
if event.key() == QtCore.Qt.Key_Q:
self._counter += 1
self._label.setText('Клавиша Q нажата {} раз'.format(self._counter))
event.accept()
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
main_window = ExampleWindow()
main_window.show()
sys.exit(app.exec_())