Untitled

Using python to return a list of squared integers
squared = [x**2 for x in lst]

def generate_squares(a):
    for x in a:
        yield x**2

# this is equivalent to above
b = (x**2 for x in a)

squared = lambda li: map(lambda x: x*x, li)

>>> def sqr(x):
...     return x*x
...
>>> map(sqr,range(1,10))
[1, 4, 9, 16, 25, 36, 49, 64, 81]
>>>

>>> map(lambda x: x*x,range(1,10))
[1, 4, 9, 16, 25, 36, 49, 64, 81]

result = [x*x for x in range(1,10)]

a = [1, 2, 3]
b = [x ** 2 for x in a]

for sq in (x*x for x in li):
   # do