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Editorial Team
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Asked: 2026-05-30T08:47:59+00:00

How can I configure the Google App Engine SDK to run the local development

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How can I configure the Google App Engine SDK to run the local development server without requiring a network connection? I’ve tried removing ~/.appcfg_nag and setting --skip_sdk_update_check at runtime, but it still fails with the following error:

socket.gaierror: [Errno 8] nodename nor servname provided, or not known

EDIT: Here’s the complete command and error output:

$ dev_appserver.py helloworld/
INFO     2012-02-20 20:00:19,712 py_zipimport.py:148] zipimporter('/Library/Python/2.6/site-packages/MySQL_python-1.2.3-py2.6-macosx-10.6-fat.egg', 'MySQLdb/')
WARNING  2012-02-20 20:00:19,784 rdbms_mysqldb.py:94] The rdbms API is not available because the MySQLdb library could not be loaded.
Warning: You are using a Python runtime (2.6) that is more recent than the production runtime environment (2.5). Your application may use features that are not available in the production environment and may not work correctly when deployed to production.
INFO     2012-02-20 20:00:19,859 appengine_rpc.py:159] Server: appengine.google.com
WARNING  2012-02-20 20:00:19,874 dev_appserver.py:3396] Could not initialize images API; you are likely missing the Python "PIL" module. ImportError: No module named _imaging
Traceback (most recent call last):
  File "/usr/local/bin/dev_appserver.py", line 99, in <module>
    run_file(__file__, globals())
  File "/usr/local/bin/dev_appserver.py", line 95, in run_file
    execfile(script_path, globals_)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_main.py", line 692, in <module>
    sys.exit(main(sys.argv))
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_main.py", line 656, in main
    persist_logs=persist_logs)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 3594, in CreateServer
    server = HTTPServerWithScheduler((serve_address, port), handler_class)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 3622, in __init__
    request_handler_class)
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/SocketServer.py", line 400, in __init__
    self.server_bind()
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/BaseHTTPServer.py", line 108, in server_bind
    SocketServer.TCPServer.server_bind(self)
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/SocketServer.py", line 411, in server_bind
    self.socket.bind(self.server_address)
  File "<string>", line 1, in bind
socket.gaierror: [Errno 8] nodename nor servname provided, or not known
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1 Answer

  1. Editorial Team

    The default behavior is to bind to 127.0.0.1, which is resolved to “localhost” by looking it up on /etc/hosts (or vice-versa). Try forcing it to bind to 127.0.0.1:8080 by starting it as “dev_appserver.py helloworld -a 127.0.0.1 -p 8080” or bind it to all local addresses with “dev_appserver.py helloworld -a 0.0.0.0 -p 8080” and see what happens.

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