本文介绍了需要帮助重写函数QWebPage.userAgentForUrl()的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想覆盖QWebPage类的userAgentForUrl函数，但是我做错了，用户代理仍然是默认代理.
I want to override the userAgentForUrl function of QWebPage class, but I'm doing something wrong, and the user agent is still the default one.
#! /usr/bin/env python2.7
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.QtWebKit import *
import sys
from bs4 import BeautifulSoup
class Browser(QWebView, QWebPage):
def __init__(self):
QWebView.__init__(self)
QWebPage.__init__(self)
self.frame = self.page().mainFrame()
self.loadFinished.connect(self.print_html)
self.loadProgress.connect(self.print_progress)
def userAgentForUrl(self, url):
return "Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20100101 Firefox/7.0.1"
def print_progress(self, percent):
print percent
def print_html(self):
print "Done"
self.fill_form()
html = unicode(self.frame.toHtml()).encode('utf-8')
soup = BeautifulSoup(html)
print soup.prettify()
if __name__ == '__main__':
app = QApplication(sys.argv)
br = Browser()
br.load(QUrl('http://www.useragentstring.com/'))
br.show()
app.exec_()
推荐答案
在PyQt中，从多个Qt类继承通常是行不通的.因此，您将需要一个单独的QWebPage子类，以覆盖虚拟 userAgentForUrl 函数.
In PyQt, inheriting from multiple Qt classes usually won't work. So you will need a separate QWebPage subclass in order to override the virtual userAgentForUrl function.
尝试这样的事情:
class WebPage(QWebPage):
def userAgentForUrl(self, url):
return "Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20100101 Firefox/7.0.1"
class Browser(QWebView):
def __init__(self):
QWebView.__init__(self)
self.setPage(WebPage())
这篇关于需要帮助重写函数QWebPage.userAgentForUrl()的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！