Does PYQT5 support all python libraries?

Question

I am new to python and GUI programming as well.

I need to build a front-end GUI application and for the back - end application I have already built in python 2.7.

My question is, if I develop a front end application in PyQT, will I be able to integrate the python code in that (or) will the PYQT support python modules like socket, threading etc.?

Answer 1

PyQt doesn't handle the back-end code. It is used to set up hooks so that when a user interacts with the GUI, some code is launched in Python.

In other words, yes, you'll be able to implement things like threading.

Here's an example where I'm clicking a button which has a 'hook' to launch a process. In this case, I'm launching the process in another thread so that the GUI doesn't freeze up.

import sys
import time
import threading
import datetime as dt
# Import from qtpy if you're running Anaconda3
from qtpy import QtCore, QtGui, QtWidgets
# Import from PyQt5 otherwise
# from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.resize(500, 220)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(400, 180, 93, 28))
        self.label = QtWidgets.QLabel(self.centralwidget)
        self.label.setGeometry(QtCore.QRect(10, 10, 471, 141))
        font = QtGui.QFont()
        font.setPointSize(20)
        self.label.setFont(font)
        self.label.setAlignment(QtCore.Qt.AlignCenter)
        MainWindow.setCentralWidget(self.centralwidget)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        MainWindow.setWindowTitle(QtCore.QCoreApplication.translate("MainWindow", "MainWindow", None))
        self.pushButton.setText(QtCore.QCoreApplication.translate("MainWindow", "Start", None))
        self.label.setText(QtCore.QCoreApplication.translate("MainWindow", "", None))


def main():
    # Continually update LineEdit with the time when the button is pressed
    # We can do this without freezing the GUI by launching update_time()
    # in another thread
    ui.pushButton.clicked.connect(lambda: threading.Thread(target=update_time).start())


def update_time():
    while True:
        current_time_text = dt.datetime.now().strftime('%b %d %Y %I:%M:%S %p')
        ui.label.setText(current_time_text)
        time.sleep(.01)


if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    main()
    sys.exit(app.exec_())