Using a switch-like if/else construct versus a dictionary?

[heltena]

asincero ha escrit:
> def foo():
>    def doCase1():
>       pass
>    def doCase2():
>       pass
>    def doCase3():
>       pass
>    def doCase4():
>       pass
>    def doCase5():
>       pass
>
>    handle_case = {}
>    handle_case[1] = doCase1()
>    handle_case[2] = doCase2()
>    handle_case[3] = doCase3()
>    handle_case[4] = doCase4()
>    handle_case[5] = doCase5()

Sorry, but I think this is not correct. Now, you put the result of the
function call into the dictionary, but you want the function address.

The correct code is:
    handle_case = {}
    handle_case[1] = doCase1
    handle_case[2] = doCase2
    handle_case[3] = doCase3
    handle_case[4] = doCase4
    handle_case[5] = doCase5

Or:
    handle_case = { 1: doCase1, 2: doCase2, 3: doCase3, 4: doCase4, 5:
doCase 5 }

Or:
   try:
      { 1: doCase1, 2: doCase2, 3: doCase3, 4: doCase4, 5: doCase 5 }
[c]()
   except:
      print "Catch the correct exception"

But this solutions only works fine if the params of the functions are
the same for all calls (in if/else construct you don't need it).

Bye!

--
Helio Tejedor