navegador

import sys
import os
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5.QtWebEngineWidgets import *
import re
class MainWindow(QMainWindow):
   def __init__(self):
       super(MainWindow, self).__init__()
       self.browser = QWebEngineView()
       self.browser.setUrl(QUrl('http://google.com'))
       self.setCentralWidget(self.browser)
       self.showMaximized()

       navbar = QToolBar()
       self.addToolBar(navbar)

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

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

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

       home_btn = QAction('Baixar Video youtube', self)
       home_btn.triggered.connect(self.navigate_home)
       navbar.addAction(home_btn)

       home_btn = QAction('Medidor de Velocidade', self)
       home_btn.triggered.connect(self.navigate_home2)
       navbar.addAction(home_btn)

       home_btn = QAction('Resultados Loterias', self)
       home_btn.triggered.connect(self.navigate_home3)
       navbar.addAction(home_btn)

       home_btn = QAction('Decimal -> Binario', self)
       home_btn.triggered.connect(self.navigate_home4)
       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)
       navbar.addWidget(self.url_bar)

   def navigate_home4(self):
      import conveternum
      conveternum.conv()


   def navigate_home3(self):
       self.browser.setUrl(QUrl('http://loterias.caixa.gov.br/wps/portal/loterias'))

   def navigate_home2(self):
       self.browser.setUrl(QUrl('https://www.google.com/search?q=medidor+de+velocidade'))


   def navigate_home(self):
       import downloadyoutube
       downloadyoutube.download_you()

   def navigate_to_url(self):
       url = self.url_bar.text()
       data = str(len(url))
       if url[0:4] == 'https' or url[0:3]=='http':
           self.browser.setUrl(QUrl(url))


       else:
          prefix = 'http://'
          url2 = ''+prefix+''+url+''
          url3 = url2.replace('http://http://','http:').replace('http://https//','https')
          self.browser.setUrl(QUrl(url3))



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

app = QApplication(sys.argv)
QApplication.setApplicationName('Kodish Web')
window = MainWindow()
app.exec_()