Payal Rathod wrote:
On Mon, Apr 17, 2006 at 05:42:05PM +0100, Steve Nelson wrote:
When you define a function, you are writing a block of code which you
can ask to perform a task. The task may be simple, and not require
any additional information, or it may be more complex and need
information.
What is the difference between,
def f(x):
... return x
...
f(4)
4
def f(x):
... print x
...
f(4)
4
Both give same results. So, why return statement is needed?
With warm regards,
-Payal
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New at this but the f(x) with the return statement passes the value back
to be used in something. The one with the print statement just prints
it. Correct me if I am wrong experts
def f(x):
x = x + 1;
return x
def g(x):
x=x + 1;
print x;
>>> bob = 5 + f(5)
>>> print bob
bob =Traceback (most recent call last):
File "<stdin>", line 1, in ?
TypeError: unsupported operand type(s) for +: 'int' and 'NoneType' 5 + g(5)
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