Can you help me with the below code? Urgent!

[gokcemutlu at gmail.com]

I want to trace a function while it executes and keep its local
variables as states. In trace function all the things work well but
after all when I print states, they are all the same. I couldn't solve
the problem. I guess it's because of frame, please can you help me?

import sys

states = []

def traceit(frame, event, arg):
    location = frame.f_code.co_name

    if location == "afunc":
        states.append(frame.f_locals)
        print frame.f_locals

    return traceit

def afunc(a, b, c):
    x = a + b
    y = b + c
    z = b

    rslt = x + y - z

    return rslt

print "This is what I should see!"
sys.settrace(traceit)
afunc(1, 2, 3)
sys.settrace(None)

print "\nWhy does this happen and how can I solve it?"
for s in states:
    print s