Python code - 8 lines

Link:

Python, pasted on May 27:

def test(lst):
    lst[0] = 'test'
    print 'inside', lst

lst = [0,0,0,0]
print 'before', lst
test(lst)
print 'after', lst

Output:

1
2
3

before [0, 0, 0, 0]
inside ['test', 0, 0, 0]
after ['test', 0, 0, 0]