[Tutor] please help me modify this code so that I can utilize raw_input

[Alan Gauld]

On 04/10/16 15:04, Richard Koeman wrote:
> I would like to modify this code so that instead of me calling the function
> with the list as shown [1,2,3,4], the user inputs the list with raw_input.
> 

You don't need to modify your code you just need ton write a function
that reads a list from the user. Notice that this can e done by either
repeatedly asking the user to input values until they are done or by
reading a string containing the values and converting the string to a
list of numbers.


> """Define a function sum() and a function multiply() that sums and
> multiplies (respectively) all the numbers in a list of numbers. For
> example, sum([1, 2, 3, 4]) should return 10, and multiply([1, 2, 3, 4])
> should return 24."""

<rant>
I do wish teachers would not ask students to reinvent the wheel.
Python already has a perfectly good sum() function.
And both problems become trivial if using functools.reduce()
</rant>

> 
> def sum(mylist = [], *args):
>   print mylist
>   sum_of_number = 0
>   for i in mylist:
>     sum_of_number += i
>   print "The sum of the digits in your number is %s" %(sum_of_number)

> def multiply(mylist = [], *args):
>   product_of_number = 1
>   for i in mylist:
>     product_of_number = product_of_number * i
>   print "The product of the digits in your number is %s"
> %(product_of_number)
> 
> sum([1,2,3,4])
> multiply([1,2,3,4])

Incidentally, notice that the assignment asks you to *return* the
results not print them. This is good practice, keep the printing
separate from the calculation. You can then print the result,
if you wish, with

print( sum([....]) )

hth
-- 
Alan G
Author of the Learn to Program web site
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