decorators.py 文件源码

def str_to_func(s, sandbox=None):
  if isinstance(s, (tuple, list)):
    code, closure, defaults = s
  elif isinstance(s, string_types): # path to file
    if os.path.isfile(s):
      with open(s, 'rb') as f:
        code, closure, defaults = cPickle.load(f)
    else: # pickled string
      code, closure, defaults = cPickle.loads(s)
  else:
    raise ValueError("Unsupport str_to_func for type:%s" % type(s))
  code = marshal.loads(cPickle.loads(code).tostring())
  func = types.FunctionType(code=code, name=code.co_name,
              globals=sandbox if isinstance(sandbox, Mapping) else globals(),
              closure=closure, argdefs=defaults)
  return func