Append multiple strings to a single QLabel in PyQt5

#help #python #pyqt #pyqt5

Hello everyone!

I've been working on this project for a while now, everything is working as should be except the final piece.

Here is my code. The app takes a 'number of passwords' input and a 'length of passwords' input. When you clicked the 'generate passwords' button it generates random passwords that should be appended to my app (self.textBox). Instead of appending all the generated passwords it only appends the last password that was generated in the loop.

Question: If I input '10' or '20' as my desired number of passwords, how can I get it to append them all in my app?

Thank you everyone!

import sys
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QApplication, QWidget, QInputDialog, QLineEdit, QVBoxLayout, QPushButton, QLabel
import random


class App(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('Password Generator')
        self.setGeometry(100,100, 400, 400)
        self.intro = QLabel("Welcome to PyPass Gen 2.0")
        self.dialog1 = QInputDialog()
        self.dialog1.setOption(QInputDialog.NoButtons)
        self.dialog1.setLabelText('Number of passwords: ')
        self.dialog2 = QInputDialog()
        self.dialog2.setOption(QInputDialog.NoButtons)
        self.dialog2.setLabelText('Length of passwords: ')
        self.layout = QVBoxLayout()
        self.layout.addWidget(self.intro, alignment=Qt.AlignCenter)
        self.layout.addWidget(self.dialog1)
        self.layout.addWidget(self.dialog2)
        self.textBox = QLabel()
        self.layout.addWidget(self.textBox, alignment=Qt.AlignCenter)
        self.button1 = QPushButton("Generate Passwords")
        self.button1.clicked.connect(self.execute)
        self.layout.addWidget(self.button1)

        self.setLayout(self.layout)
        self.show()

    def execute(self):
        char = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890!@#$%^&*()-_,./?'
        number_v = int(self.dialog1.textValue())
        length_v = int(self.dialog2.textValue())
        for password in range(number_v):
            self.passwords = ''
            for chars in range(length_v):
                self.passwords += random.choice(char)

                self.textBox.setText(self.passwords)

            print(self.passwords)
            # self.passwords.append(self.textBox)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = App()
    sys.exit(app.exec_())

Top comments (1)

Jason Cruz • Sep 1 '22

Hi
Idk if you solved this issue. But I found something that might help ya..


import sys
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QApplication, QWidget, QInputDialog, QLineEdit, QVBoxLayout, QPushButton, QLabel
import random


class App(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('Password Generator')
        self.setGeometry(100,100, 400, 400)
        self.intro = QLabel("Welcome to PyPass Gen 2.0")
        self.dialog1 = QInputDialog()
        self.dialog1.setOption(QInputDialog.NoButtons)
        self.dialog1.setLabelText('Number of passwords: ')
        self.dialog2 = QInputDialog()
        self.dialog2.setOption(QInputDialog.NoButtons)
        self.dialog2.setLabelText('Length of passwords: ')
        self.layout = QVBoxLayout()
        self.layout.addWidget(self.intro, alignment=Qt.AlignCenter)
        self.layout.addWidget(self.dialog1)
        self.layout.addWidget(self.dialog2)
        self.layout2 = QVBoxLayout()
        self.layout.addLayout(self.layout2)
        self.textBoxes = []
        self.button1 = QPushButton("Generate Passwords")
        self.button1.clicked.connect(self.execute)
        self.layout.addWidget(self.button1)

        self.setLayout(self.layout)
        self.show()

    def execute(self):
        char = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890!@#$%^&*()-_,./?'
        number_v = int(self.dialog1.textValue())
        length_v = int(self.dialog2.textValue())
        self.clearTextBoxes()
        for password in range(number_v):
            self.passwords = ''
            for chars in range(length_v):
                self.passwords += random.choice(char)
                textBox = QLabel(self.passwords)
            print(self.passwords)
            self.textBoxes.append(textBox)
            self.layout2.addWidget(textBox)
            # self.passwords.append(self.textBox)

    def clearTextBoxes(self):
        for textBox in self.textBoxes:
            textBox.setParent(None)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = App()
    sys.exit(app.exec_())

You guys are genuis to figure all this coding out.. I really want to make an app and sell it. but lately feels like its more trouble then its worth.. Take Care.

DEV Community

Append multiple strings to a single QLabel in PyQt5

Top comments (1)

Read next

Creating a Professional-Quality Slideshow with Python: A Guide to Building Your Own iMovie Alternative

Comprehensive Overview of Object-Oriented Programming (OOP) Principles

Happy programming day

How to Use JSONB in PostgreSQL with Step-by-Step Instructions