def file_open(filename, group=-1, options=''): return ct.file_open(filename, group, options)
def file_open(filename, group=-1): return ct.file_open(filename, group)
def file_open(name, group=-1, options=''): if isinstance(name, (list, tuple)): return ct.file_open(name[0], name[1], group, options) else: return ct.file_open(name, '', group, options)
def file_open(filename, group=-1, args=''): return ct.file_open(filename, group, args)