In [11]: %pycat reTest.py
#!/usr/bin/env python
def testReturn(input1,input2):
  sum = input1 + input2
  return [sum,input1,input2]

calculation = testReturn(1,2)
x,y,z = testReturn(1,2)
print calculation
print x
print y
print z

In [12]: run reTest.py
[3, 1, 2]
3
1
2

In [25]: %pycat reTest.py
#!/usr/bin/env python
def testReturn(input1):
  for i in range(input1):
    return i

def testPrint(input1):
  for i in range(input1):
    print i

n = 3
value1 = testReturn(n)
print 'testReturn return value = %s' % value1 

print '*'*15

value2 = testPrint(n)
print 'testPrint return value = %s' % value2

In [26]: run reTest.py
testReturn return value = 0
***************
0
1
2
testPrint return value = None

In [12]: number = 123

In [13]: number.__add__.__doc__
Out[13]: 'x.__add__(y) <==> x+y'