def _initialize_builtins():
  for filename in os.listdir(_handler_dir):
    if os.path.isfile(_get_yaml_path(filename, '')):
      _available_builtins.append(filename)
Parse options and process commands
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/builtins/__init__.py/_initialize_builtins--crossover with--dataset/ETHPy150Open areski/python-nvd3/nvd3/NVD3Chart.py/_main