IssueTracker

The development server crashes at startup:

INFO     2017-05-16 15:27:54,564 sdk_update_checker.py:231] Checking for updates to the SDK.
Traceback (most recent call last):
  File "/usr/local/google_appengine/dev_appserver.py", line 103, in <module>
    _run_file(__file__, globals())
  File "/usr/local/google_appengine/dev_appserver.py", line 97, in _run_file
    execfile(_PATHS.script_file(script_name), globals_)
  File "/home/usr_local/google_appengine_1.9.53/google/appengine/tools/devappserver2/devappserver2.py", line 899, in <module>
    main()
  File "/home/usr_local/google_appengine_1.9.53/google/appengine/tools/devappserver2/devappserver2.py", line 887, in main
    dev_server.start(options)
  File "/home/usr_local/google_appengine_1.9.53/google/appengine/tools/devappserver2/devappserver2.py", line 694, in start
    update_checker.check_for_updates(configuration)
  File "/usr/local/google_appengine/google/appengine/tools/devappserver2/update_checker.py", line 92, in check_for_updates
    update_check.CheckForUpdates()
  File "/usr/local/google_appengine/google/appengine/tools/sdk_update_checker.py", line 245, in CheckForUpdates
    runtime=runtime))
  File "/usr/local/google_appengine/google/appengine/tools/appengine_rpc.py", line 393, in Send
    f = self.opener.open(req)
  File "/usr/lib64/python2.7/urllib2.py", line 429, in open
    response = self._open(req, data)
  File "/usr/lib64/python2.7/urllib2.py", line 447, in _open
    '_open', req)
  File "/usr/lib64/python2.7/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/lib64/python2.7/urllib2.py", line 1241, in https_open
    context=self._context)
  File "/home/usr_local/google_appengine_1.9.53/lib/fancy_urllib/fancy_urllib/__init__.py", line 411, in do_open
    url_error.reason.args[1])
fancy_urllib.InvalidCertificateException: Host appengine.google.com returned an invalid certificate ([SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)):
To learn more, see http://code.google.com/appengine/kb/general.html#rpcssl

Process finished with exit code 1

One workaround is to copy the `lib/cacerts/cacerts.txt` file from 1.9.50 (or earlier) SDK version.

First seen in SDK version 1.9.51 and still happening in 1.9.53.
StackOverflow post: http://stackoverflow.com/questions/43221963/google-app-engine-ssl-certificate-error