title: Errno 10054 An existing connection was forcibly closed by the remote host. - How to debug?
body: <p>I'm using Google App Engine for the first time and I'm sort of confused about this error, I can't understand how to debug this any further.</p>
  
  <p>I created an application under my account, then I'm trying to upload a python file into it via Google App Engine Launcher. But I keeping getting this error.</p>
  
  <pre><code>08:39 PM Host: appengine.google.com
  08:39 PM Application: gappproxytestapp; version: 1
  08:39 PM 
  Starting update of app: gappproxytestapp, version: 1
  08:39 PM Getting current resource limits.
  2012-11-13 20:40:32,505 ERROR appcfg.py:2202 An error occurred processing file '': &lt;urlopen error [Errno 10054] An existing connection was forcibly closed by the remote host&gt;. Aborting. 
  Traceback (most recent call last):
    File "C:\Program Files (x86)\Google\google_appengine\appcfg.py", line 171, in &lt;module&gt;
      run_file(__file__, globals())
    File "C:\Program Files (x86)\Google\google_appengine\appcfg.py", line 167, in run_file
      execfile(script_path, globals_)
    File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\appcfg.py", line 4322, in &lt;module&gt;
      main(sys.argv)
    File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\appcfg.py", line 4313, in main
      result = AppCfgApp(argv).Run()
    File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\appcfg.py", line 2599, in Run
      self.action(self)
    File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\appcfg.py", line 4048, in __call__
      return method()
    File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\appcfg.py", line 3065, in Update
      self.UpdateVersion(rpcserver, self.basepath, appyaml)
    File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\appcfg.py", line 3047, in UpdateVersion
      lambda path: self.opener(os.path.join(basepath, path), 'rb'))
    File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\appcfg.py", line 2172, in DoUpload
      self.resource_limits = GetResourceLimits(self.rpcserver, self.config)
    File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\appcfg.py", line 357, in GetResourceLimits
      resource_limits.update(GetRemoteResourceLimits(rpcserver, config))
    File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\appcfg.py", line 328, in GetRemoteResourceLimits
      version=config.version)
    File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\appengine_rpc.py", line 389, in Send
      f = self.opener.open(req)
    File "C:\Python27\lib\urllib2.py", line 400, in open
      response = self._open(req, data)
    File "C:\Python27\lib\urllib2.py", line 418, in _open
      '_open', req)
    File "C:\Python27\lib\urllib2.py", line 378, in _call_chain
      result = func(*args)
    File "C:\Python27\lib\urllib2.py", line 1215, in https_open
      **return self.do_open(httplib.HTTPSConnection, req)
    File "C:\Program Files (x86)\Google\google_appengine\lib\fancy_urllib\fancy_urllib\__init__.py", line 383, in do_open
      raise url_error
  urllib2.URLError: &lt;urlopen error [Errno 10054] An existing connection was forcibly closed by the remote host&gt;
  2012-11-13 20:40:32 (Process exited with code 1)**
  
  You can close this window now.
  </code></pre>
  
  <p>How do I debug this further? Seems like urllib2 is having problems with HTTPS. But that's strange because I'm not behind any local proxy and I've never had any other HTTPS problems.</p>