[Tutor] Need help with dict.calculation

[Andy W]

Hi Eve,

I won't make changes that are _too_ drastic, but I suggest you divide tasks
into separate functions.
At the moment it's recursive, and I don't think that's very useful here. (It
could work, but I just don't think it's necessary).

The first function will gather the data, the second will do the
looping/control.
This is all untested, but it should give you some ideas.

> In the script below I would like to add up the totals for each item into
> one final total.  So far I haven't come up with anything.  Help.

#
def gather_data():
  items = raw_input("Add food item: ")
  portion = input("Enter number of portions: ")
  cal_portion = input("Enter calories per portion: ")
  return items,portion,cal_portion

def get_total_calories():
  print "Enter all foods you have eaten today."

  more=""
  while more!="n":
    items,portion,cal_portion = gather_data()
    total_calories[items]=portion * cal_portion
    more = raw_input("Do you want to continue? y/n: ")

  for i in total_calories.values():
    total = total + i
  print "Total calories: ",total
#

As a side note, you don't even need to put it in a dictionary, you can just
have a running total in an integer variable.
I said I wouldn't make drastic changes though :o)

Andy

>
> def food_add():
>     print "Enter all foods you have eaten today."
>
>     items = raw_input("Add Food Item: ")
>     portion = input("Enter number of portions: ")
>     cal_portion = input("Enter calories per portion: ")
>
>     more = raw_input("Do you wish to continue? y/n: ")
>     while more != 'n':
>         food_add()
>         break
>     total_calories[items] = portion * cal_portion
>     total = 0
>     for i in total_calories.values():
>         total = total + i
>     print "Total calories: ",total
>
> My output is:
>
> Total calories:  120
> Total calories:  254
>
> The total calories for each item entered with the last entry first,
> rather than just a Total calories: 374
> --
>
> ekotyk
>
> http://members.shaw.ca/e.kotyk/virtualstudio.htm
>
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