PyQt5 Python Generating a New Button When Clicking Existing Menu Option

Question

it's my first time posting on the site. It's definitely early days for me when it comes to learning Python & PyQt5 so I am likely missing something basic. I am making a program that will have some basic functionality but for now I just want to get the button spawning to work.

Here is the code I have so far:

from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QFileDialog, QPushButton
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import pyqtSlot
import sys
import os

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(808, 600)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
        self.gridLayout.setObjectName("gridLayout")
        self.alltabswidget = QtWidgets.QTabWidget(self.centralwidget)
        self.alltabswidget.setMinimumSize(QtCore.QSize(790, 541))
        self.alltabswidget.setMaximumSize(QtCore.QSize(791, 561))
        self.alltabswidget.setObjectName("alltabswidget")
        self.gaming = QtWidgets.QWidget()
        self.gaming.setObjectName("gaming")
        self.label = QtWidgets.QLabel(self.gaming)
        self.label.setGeometry(QtCore.QRect(6, 2, 781, 511))
        self.label.setText("")
        self.label.setPixmap(QtGui.QPixmap("../../../../../Pictures/Coding Images/Coding.jpg"))
        self.label.setScaledContents(True)
        self.label.setObjectName("label")
        self.firstcodingbutton = QtWidgets.QPushButton(self.gaming)
        self.firstcodingbutton.setGeometry(QtCore.QRect(50, 30, 141, 51))
        self.firstcodingbutton.setObjectName("firstcodingbutton")
        self.alltabswidget.addTab(self.gaming, "")
        self.gaming1 = QtWidgets.QWidget()
        self.gaming1.setObjectName("gaming1")
        self.label_2 = QtWidgets.QLabel(self.gaming1)
        self.label_2.setGeometry(QtCore.QRect(6, 2, 781, 511))
        self.label_2.setText("")
        self.label_2.setPixmap(QtGui.QPixmap("../../../../../Pictures/Coding Images/Gaming.jpg"))
        self.label_2.setScaledContents(True)
        self.label_2.setObjectName("label_2")
        self.firstgamingbutton = QtWidgets.QPushButton(self.gaming1)
        self.firstgamingbutton.setGeometry(QtCore.QRect(50, 30, 141, 51))
        self.firstgamingbutton.setObjectName("firstgamingbutton")
        self.alltabswidget.addTab(self.gaming1, "")
        self.fileaccess = QtWidgets.QWidget()
        self.fileaccess.setObjectName("fileaccess")
        self.label_3 = QtWidgets.QLabel(self.fileaccess)
        self.label_3.setGeometry(QtCore.QRect(6, 2, 781, 511))
        self.label_3.setText("")
        self.label_3.setPixmap(QtGui.QPixmap("../../../../../Pictures/Coding Images/Other.jpg"))
        self.label_3.setScaledContents(True)
        self.label_3.setObjectName("label_3")
        self.firstfileacessbutton = QtWidgets.QPushButton(self.fileaccess)
        self.firstfileacessbutton.setGeometry(QtCore.QRect(50, 30, 141, 51))
        self.firstfileacessbutton.setObjectName("firstfileacessbutton")
        self.alltabswidget.addTab(self.fileaccess, "")
        self.gridLayout.addWidget(self.alltabswidget, 0, 0, 1, 1)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 808, 21))
        self.menubar.setObjectName("menubar")
        self.menuFile = QtWidgets.QMenu(self.menubar)
        self.menuFile.setObjectName("menuFile")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
        self.actionnewshortcut = QtWidgets.QAction(MainWindow)
        self.actionnewshortcut.setObjectName("actionnewshortcut")
##        self.actionnewshortcut.triggered.connect(clicknewshortcut)
        self.actionsave = QtWidgets.QAction(MainWindow)
        self.actionsave.setObjectName("actionsave")
        self.actionexit = QtWidgets.QAction(MainWindow)
        self.actionexit.setObjectName("actionexit")
        self.menuFile.addAction(self.actionnewshortcut)
        self.menuFile.addAction(self.actionsave)
        self.menuFile.addAction(self.actionexit)
        self.menubar.addAction(self.menuFile.menuAction())

        self.retranslateUi(MainWindow)
        self.alltabswidget.setCurrentIndex(0)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)


    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Shortcuts"))
        self.firstcodingbutton.setText(_translate("MainWindow", "Rename Me"))
        self.alltabswidget.setTabText(self.alltabswidget.indexOf(self.gaming), _translate("MainWindow", "Coding"))
        self.firstgamingbutton.setText(_translate("MainWindow", "Rename Me"))
        self.alltabswidget.setTabText(self.alltabswidget.indexOf(self.gaming1), _translate("MainWindow", "Gaming"))
        self.firstfileacessbutton.setText(_translate("MainWindow", "Rename Me"))
        self.alltabswidget.setTabText(self.alltabswidget.indexOf(self.fileaccess), _translate("MainWindow", "File Access"))
        self.menuFile.setTitle(_translate("MainWindow", "File"))
        self.actionnewshortcut.setText(_translate("MainWindow", "New Shortcut"))
        self.actionnewshortcut.setShortcut(_translate("MainWindow", "Ctrl+N"))
        self.actionsave.setText(_translate("MainWindow", "Save"))
        self.actionsave.setShortcut(_translate("MainWindow", "Ctrl+S"))
        self.actionexit.setText(_translate("MainWindow", "Exit"))
        self.actionexit.setShortcut(_translate("MainWindow", "Ctrl+E"))

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

I did find this question already on the site but the main window is setup a bit differently in that example and I'm not sure how to insert the button generating function into my code. Essentially I want to have it so when you go to file, then new shortcut, it generates a button just below the first one on the current selected tab. I can mess with the geometry afterwards but first I'm trying to get the generation to work. I have the triggered signal commented out for now since it's not linked to anything yet.

Answer 1

Add self to the slot

self.actionnewshortcut.triggered.connect(self.clicknewshortcut)

Define the method in the class

def clicknewshortcut(self):
    tab = self.alltabswidget.currentWidget()
    first_btn = tab.findChild(QPushButton)
    btn = QPushButton('New Button', tab)
    btn.setGeometry(first_btn.geometry().translated(0, first_btn.height()))
    btn.show()

It gets the current widget, creates a new button, and sets its geometry below the first button in that widget.