How to create own browser using python

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Steps for Developing Web Browser Using Python:

Step 1: Installing the required libraries.
PyQt5 and PyQtWebEngine

Step 2: Import the modules that are needed for the development of this project.
sys module, modules from PyQt5 like QtCore, QtWidgets, QtWebEngineWidgets

Step 3: Functions definition and creation of classes.

Step 4: Coding for buttons and their functionalities.
Step 1: About Libraries & Its Installtion:

PyQTt5: PyQt5 is one of the most popular Python modules for creating graphical user interfaces as it is very easy to use for beginners. The PyQt5 designer makes it so easy to construct complex GUI programs in a short amount of time, and it is also another wonderful feature that motivates developers to choose PyQt5.

PyQtWebEngine: The framework is built on the Chrome browser and allows users to embed online content in their apps. The bindings are built on top of PyQt5 and are divided into three modules that match the framework’s various libraries.

Now, let us see how to install these libraries.PyQt5
PyQtWebEngine

To install the PyQt5 library, enter the following command in the cmd:

pip install PyQt5

To install the PyQtWebEngine library, enter the following command in the cmd:

pip install PyQtWebEngine

Try this
Here’s the link to the official documentation: https://pypi.org/project/PyQt5/


Complete code for Creating Your Own Browser

import sys
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5.QtWebEngineWidgets import *


class MainWindow(QMainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()
        self.browser = QWebEngineView()
        self.browser.setUrl(QUrl('https://google.com'))
        self.setCentralWidget(self.browser)
        self.showMaximized()

        # navbar
        navbar = QToolBar()
        self.addToolBar(navbar)

        back_btn = QAction('Back', self)
        back_btn.triggered.connect(self.browser.back)
        navbar.addAction(back_btn)

        forward_btn = QAction('Forward', self)
        forward_btn.triggered.connect(self.browser.forward)
        navbar.addAction(forward_btn)

        reload_btn = QAction('Reload', self)
        reload_btn.triggered.connect(self.browser.reload)
        navbar.addAction(reload_btn)

        home_btn = QAction('Home', self)
        home_btn.triggered.connect(self.navigate_home)
        navbar.addAction(home_btn)

        self.url_bar = QLineEdit()
        self.url_bar.returnPressed.connect(self.navigate_to_url)
        navbar.addWidget(self.url_bar)

        self.browser.urlChanged.connect(self.update_url)

    def navigate_home(self):
        self.browser.setUrl(QUrl('https://programming-hero.com'))

    def navigate_to_url(self):
        url = self.url_bar.text()
        self.browser.setUrl(QUrl(url))

    def update_url(self, q):
        self.url_bar.setText(q.toString())


app = QApplication(sys.argv)
QApplication.setApplicationName('My Cool Browser')
window = MainWindow()
app.exec_()

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