Infinite list sample like Haskell on python!

infinite_list_sample.py

def inflist(a,n):
  while True:
    a.append((a[1]-a[0])*n)
    yield n
    n+=1
 
def take(n,a):
  b=[]
  for i in range(n):
     b.append(a.next())
  return b
 
print take(500,inflist([0,1],1))