Is it possible to pass a parameter by reference?

[M.E.Farmer]

Anthony Liu wrote:
> I defined two functions, f1 and f2.
>
> f1 modifies the value of a variable called apple.
>
> I want to pass the modified value of apple to f2.
>
> How can I do this?  I got stuck.


Py>def f1(apple):
...    apple += 1
...    f2(apple)

py>def f2(apple):
...    print 'you have %s apples' % apple

py>f1(4)
'you have 5 apples'
Read the docs this is pretty basic, it will save you time.
If in doubt try it out.
Use the interpreter, it is your friend.
hth,
M.E.Farmer