在Python 3中创建CodeType时的TypeError

时间:2012-04-12 02:32:20

标签: python python-3.x

我正在尝试创建一个新的CodeType,以下代码在Python 2.7中运行得很好,但在Python 3.2中我收到错误:

def newCode(co_argcount = 0, co_nlocals = 0, co_stacksize = 0, co_flags = 0x0000,
            co_code = bytes(), co_consts = (), co_names = (), co_varnames = (),
            filename = "<string>", name = "", firstlineno = 0, co_lnotab = bytes(),
            co_freevars = (), co_cellvars = ()):
    """wrapper for CodeType so that we can remember the synatax"""
    print(type(co_stacksize))
    return types.CodeType(co_argcount, co_nlocals, co_stacksize,
                          co_flags, co_code, co_consts, co_names, co_varnames,
                          filename, name, firstlineno, co_lnotab, co_freevars, co_cellvars)

用法:

return newCode(co_code = code, co_stacksize = size, co_consts = consts)

调试行证明我正在发送一个int作为co_stacksize ...在Python 3中发生了哪些变化使这不起作用?

编辑: 这是错误(不知道为什么我之前忘了):

TypeError:需要一个整数

1 个答案:

答案 0 :(得分:2)

在Python 3上,CodeType的第二个参数是仅关键字参数的数量co_kwonlyargcount。这是一个补充,所以后面的所有参数都会移动一个位置。

我从IPython的代码库中挖掘出来,在一个允许修补代码对象的实用程序模块中: https://github.com/ipython/ipython/blob/master/IPython/utils/codeutil.py#L32