from filelike import open as fl_open, is_filelike

def open_filelike(f, mode='rw'):
  if is_filelike(f, mode):
    return f
  elif type(f) in [type(""), type(u"")]: # 2/3 compat... sigh
    # f is a string
    return fl_open(f, mode)
  else:
    raise TypeError("f should be either a filelike or a path to file / URL")