为什么SIP和PyQt4不相处(Why are SIP and PyQt4 not getting along)

 我在Windows中完成了大部分工作，并且设置了一个像我喜欢的python27。 我最近安装了virtualBox并运行了一个Ubuntu机器，并试图安装PyQt4。 我从apt-get安装并更新了所有内容，但是，当我尝试从PyQt4导入时 
 
from PyQt4 import QtCore
 
 我得到一个runtimeError： 
 
RuntimeError: the sip module implements API v9.0 to v9.1 but the PyQt4.QtCore module requires API v8.1
 
 我确信这是一个问题，我有知识基础要在Windows中解决，但是我的Linux经验不足在这里变得越来越好，并且我错误地安装了一些东西。 这个错误导致我相信我有一个SIP版本，对于我的PyQt版本来说太过幻想......任何人都有这方面的经验吗？ 
 
 编辑 ：如果我收到错误后再次尝试导入它似乎工作。 这样做，我获得了版本信息。 
 
cfg.pyqt_version_str
Out[9]: '4.9.3'
cfg.sip_version_str
Out[10]: '4.14.3-snapshot-55188026fe6d'
 
 不确定所有快照业务是关于什么的。 

I do most of my work in Windows and have a good python27 set up like I like it. I recently installed virtualBox and got a Ubuntu Machine running on it and am trying to get PyQt4 installed on it. I installed from apt-get and updated everything, however, when I try to import from PyQt4
 
from PyQt4 import QtCore
 
I get a runtimeError:
 
RuntimeError: the sip module implements API v9.0 to v9.1 but the PyQt4.QtCore module requires API v8.1
 
I am sure this is a problem that I would have the knowledge base to solve in Windows, but my Linux inexperience is getting the better of me here and I have installed something incorrectly. The error leads me to believe I have a SIP version that is too fancy for my PyQt version...anybody have any experience with this?
 
Edit: If I try the import again after receiving the error it seems to work. Doing this I obtained the version info.
 
cfg.pyqt_version_str
Out[9]: '4.9.3'
cfg.sip_version_str
Out[10]: '4.14.3-snapshot-55188026fe6d'
 
Not sure what all that snapshot business is about.

原文：https://stackoverflow.com/questions/13981964