var args in python

varargs.py

def square(*l): print map(lamda x:x*x, l)
>>> square(1,2,3)
[1, 4, 9]
>>> square([1,2,3])
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 1, in f
  File "<stdin>", line 1, in <lambda>
TypeError: can't multiply sequence by non-int of type 'list'
>>> f(1)
[1]