def handle(self, environ, start_response, url_map, match, request_id,
             request_type):
    start_response('500 Internal Server Error',
                   [('Content-Type', 'text/html')])
    yield '<html><head><title>Invalid PHP Configuration</title></head>'
    yield '<body>'
    yield '<title>Invalid PHP Configuration</title>'
    if isinstance(self._exception, _PHPEnvironmentError):
      yield '<b>The PHP interpreter specified with the --php_executable_path '
      yield ' flag (&quot;%s&quot;) is not compatible with the App Engine ' % (
          self._php_executable_path)
      yield 'PHP development environment.</b><br>'
      yield '<br>'
      yield '<pre>%s</pre>' % self._exception
    else:
      yield '<b>%s</b>' % cgi.escape(str(self._exception))

    yield '</body></html>'
When the user interface disconnects two nodes, tell the in-flight
dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/tools/devappserver2/php_runtime.py/_BadPHPEnvironmentRuntimeProxy.handle--crossover with--dataset/ETHPy150Open andrew-gardner/dependsworkflow/depends/depends_main_window.py/MainWindow.nodesDisconnected