python 3上的Spynner模块

Question

我使用python的2to3.py来修复spynner模块。然后，在python 3上似乎出现了QString的问题。正如一些用户建议的那样，我用QString = str在spynner中修改了browser.py。首先，我尝试了以下代码

import spynner
browser = spynner.Browser()
browser.set_proxy("http://username:password@host:3128")
browser.load("http://www.google.com/")

现在python正在抛出以下错误

File "G:\Python33\lib\site-packages\spynner\browser.py", line 1163, in runjs
js_has_runned_successfully = res.isValid() or res.isNull()
AttributeError: 'str' object has no attribute 'isValid'

res在browser.py中定义为

res = self.webframe.evaluateJavaScript(jscode)

spynner真的在python 3上工作吗？

Answer 1

这对我有用。更改这一行

js_has_runned_successfully = res.isNull() or res.isValid()

到以下几行：

if res is None:
      js_has_runned_successfully = True
else:
      js_has_runned_successfully = isinstance(res, str)

我不认为有任何计划使spynner与python3 https://github.com/kiorky/spynner/issues/9一起工作。但是，我能够通过运行这些sed命令来使用它(我没有试图修复整个代码库，我只是想让它在我的应用程序上运行)：

sed -i "s/from PyQt4.QtCore import SIGNAL, QUrl, QString, Qt, QEvent/from PyQt4.QtCore import SIGNAL, QUrl, Qt, QEvent/g" browser.py
sed -i "s/if isinstance(s, QString)/if isinstance(s, str)/g" browser.py
sed -i "s/js_has_runned_successfully = res.isNull() or res.isValid()/if res is None:\n                 js_has_runned_successfully = True\n            else:\n                 js_has_runned_successfully = isinstance(res, str)/g" browser.py
sed -i "s/.toUtf8()/.encode('utf-8')/g" browser.py