Measuring Python code execution time

import time

timestart = time.time()
# code to measure here
print time.time() - timestart, "seconds"

You can also try time.clock(). It is said to be more accurate.

Accessing instance variable in Python

To access a Python instance variable outside the class:

class Sample:
def __init__(self, max):
self. max = max
....

sampleinstance = Sample(2)
max = sampleinstance.max