在Python中,是否存在模拟httplib响应的库？

问题：我想通过拦截POST请求并创建预先成功的响应来验证上传是否真的是在集成测试中发出,这样我的测试就可以完全脱机运行而不依赖于Flickr(我不想上传相同的测试图像100次,或者！)

为此,我尝试使用两个令人难以置信的库：VCRPy和HTTPretty.它们都没有解决我的问题,因为它们都不支持httplib(HTTPretty最接近,只支持httplib2),我得到的错误看起来像这个：

Failure/Error: [Errno 32] Broken pipe

 Traceback:
 ...
 File "/usr/local/lib/python2.7/site-packages/flickr_api/upload.py",line 92,in upload
     r = post(UPLOAD_URL,auth.AUTH_HANDLER,args,photo_file)
 File "/usr/local/lib/python2.7/site-packages/flickr_api/upload.py",line 52,in post
     r = multipart.posturl(url,fields,files)
 File "/usr/local/lib/python2.7/site-packages/flickr_api/multipart.py",line 19,in posturl
     return post_multipart(urlparts[1],urlparts[2],line 33,in post_multipart
     h.send(body)
 File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py",line 805,in send
     self.sock.sendall(data)
 File "/usr/local/lib/python2.7/site-packages/httpretty/core.py",line 243,in sendall
     return self._true_sendall(data)
 File "/usr/local/lib/python2.7/site-packages/httpretty/core.py",line 216,in _true_sendall
     self.truesock.sendall(data,*args,**kw)
 File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/socket.py",line 224,in meth
     return getattr(self._sock,name)(*args)

很明显,httpretty正在拦截但导致管道损坏.

我怎样才能解决这个问题？