How do I avoid the “self.x = x; self.y = y; self.z = z” pattern in __init__?

Question

I see patterns like

def __init__(self, x, y, z):
    ...
    self.x = x
    self.y = y
    self.z = z
    ...

quite frequently, often with

Answer 1

My 0.02$. It is very close to Joran Beasley answer, but more elegant:

def __init__(self, a, b, c, d, e, f):
    vars(self).update((k, v) for k, v in locals().items() if v is not self)

Additionally, Mike Müller's answer (the best one to my taste) can be reduced with this technique:

def auto_init(ns):
    self = ns.pop('self')
    vars(self).update(ns)

And the just call auto_init(locals()) from your __init__