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Re: TypeError: list indices must be integers, not tuple

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On 02/09/2015 10:05 PM, Dave Angel wrote:
> On 02/09/2015 07:02 PM, Ethan Furman wrote:
>> On 02/09/2015 03:52 PM, james8booker@hotmail.com wrote:
>>> import random
>>> RandomNum = random.randint(0,7)
>>> restraunt = raw_input("What's your favourite takeaway?Pizza, Chinease
>>> or Indian?")
>>> if restraunt == ("Pizza"):
>>>      fav = ("1")
>>>
>>> elif restraunt == ("Chinease"):
>>>      fav = ("2")
>>>
>>> elif restraunt == ("Indian"):
>>>      fav = ("3")
>>>
>>> else:
>>>      print("Try using a capital letter, eg; 'Chinease'")
>>>
>
> So just what is RandomNum supposed to represent?  You've selected it
> from an interval of 0 to 7, but you don't have 8 of anything.  The most
> logical possibility I can figure is you want to use it instead of
> whatever the user has typed into your raw input.  Like in the else
> clause.  If that's the case, you'd want to add a
>       fav = RandomNum
> line in the else clause.
>
> Of course, as Ethan has pointed out, all the other assignments to fav
> want to be integer, not string.  You can't use a string to index a lis.
>
>>> Menu = [["Barbeque
>>> pizza","Peparoni","Hawain"],["Curry","Noodles","Rice"],["Tika
>>> Masala","Special Rice","Onion Bargees"]]
>>>
>>> print Menu[fav,RandomNum]
>
> Now that you've got a single value for fav, just say
>      print Menu[fav]
> to print the submenu.
>
> Now if Ethan has guessed right, that you wanted the random value to
> choose from the submenu, then you would/should have created it after you
> have the submenu, so you know how many possibilities there are.
>
>
> Something like (untested):
> RandomNum = random.randint(0, len(submenu)-1)
>
>
>

Perhaps it's worth suggesting that you use random.choice() instead, and 
use it directly on the sublist.  If you also make your data structure a 
dict of lists, then the whole thing becomes very simple.

(untested)

Menu = {
      "Pizza" : ["Barbeque pizza","Peparoni","Hawain"],
      "Chinease" : ["Curry","Noodles","Rice"],["Tika Masala",
      "Indian" : "Special Rice","Onion Bargees"]
        }

restraunt = raw_input("What's your favourite takeaway?Pizza, Chinease or 
Indian?")

submenu = menu[restraunt]
#you might want some error handling, in case they get it wrong
fooditem = random.choice(submenu)

print fooditem


-- 
DaveA

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TypeError: list indices must be integers, not tuple james8booker@hotmail.com - 2015-02-09 15:52 -0800
  Re: TypeError: list indices must be integers, not tuple Ethan Furman <ethan@stoneleaf.us> - 2015-02-09 16:02 -0800
  Re: TypeError: list indices must be integers, not tuple Dave Angel <davea@davea.name> - 2015-02-09 22:05 -0500
  Re: TypeError: list indices must be integers, not tuple Dave Angel <davea@davea.name> - 2015-02-09 23:48 -0500
  Re: TypeError: list indices must be integers, not tuple Terry Reedy <tjreedy@udel.edu> - 2015-02-10 00:57 -0500
  Re: TypeError: list indices must be integers, not tuple Ryan Stuart <ryan.stuart.85@gmail.com> - 2015-02-10 00:05 +0000
  Re: TypeError: list indices must be integers, not tuple Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-02-10 11:35 +0000
  Re: TypeError: list indices must be integers, not tuple Dave Angel <davea@davea.name> - 2015-02-10 09:28 -0500
  Re: TypeError: list indices must be integers, not tuple Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-02-10 14:32 +0000
  Re: TypeError: list indices must be integers, not tuple Chris Angelico <rosuav@gmail.com> - 2015-02-11 01:33 +1100
  Re: TypeError: list indices must be integers, not tuple Dave Angel <davea@davea.name> - 2015-02-10 10:51 -0500
  Re: TypeError: list indices must be integers, not tuple Chris Angelico <rosuav@gmail.com> - 2015-02-11 05:48 +1100
  Re: TypeError: list indices must be integers, not tuple Dave Angel <davea@davea.name> - 2015-02-10 15:38 -0500

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