code: def _fix_path():
    
    import os
    import sys
    all_paths = os.environ.get('PYTHONPATH').split(os.pathsep)
    for path_dir in all_paths:
      dev_appserver_path = os.path.join(path_dir, 'dev_appserver.py')
      if os.path.exists(dev_appserver_path):
        logging.debug('Found appengine SDK on path!')
        google_appengine = os.path.dirname(os.path.realpath(dev_appserver_path))
        sys.path.append(google_appengine)
        # Use the next import will fix up sys.path even further to bring in
        # any dependent lib directories that the SDK needs.
        dev_appserver = __import__('dev_appserver')
        sys.path.extend(dev_appserver.EXTRA_PATHS)
        return
docs: Finds the google_appengine directory and fixes Python imports to use it.