Ruby Impressions

[Per Gummedal]

12.01.2002, 08:42, you wrote:

> adamspitz at bigfoot.com (Adam Spitz) wrote:
> | class Person:
> |     def __init__(self, name, age, gender):
> |         self.name, self.age, self.gender = name, age, gender
> |         self.doSomeStuff()
> |I'd like to be able to tell Python, "Make me an __init__ method that
> |takes these three parameters, stores them as attributes, and then does
> |this other stuff."


You could use this function:

import sys

CO_VARARGS, CO_VARKEYWORDS = 4, 8

def initParms(obj):
    f = sys._getframe(1)
    n = f.f_code.co_argcount
    # dict is new in 2.2. Do not include first parm (self)
    args = dict([(vn, f.f_locals[vn]) for vn in f.f_code.co_varnames[1:n]])
    obj.__dict__.update(args)
    # skip varargs
    if f.f_code.co_flags & CO_VARARGS:
        n += 1
    # keywords
    if f.f_code.co_flags & CO_VARKEYWORDS:
        obj.__dict__.update(f.f_locals[f.f_code.co_varnames[n]])


class A:
    def __init__(self, a, b, c, d):
        initParms(self)

a1 = A(1,2,3,4)


Per