尝试制作一个随机的字符生成器，​​但不会总是得到答案

Question

I'm trying to make a random character generator for D&D. So far I am able to make a decision on what class to pick based on the two largest stats but for some reason every now and then I get no answer. My code is fine as far as I can tell but I am a beginner in python. I would love to know why it won't always return answers and how to fix it.

data = [str,int,dex,con,wis,cha]

largest = None
second_largest = None

for a in data:
    if not largest or a > largest:
        if largest:
            second_largest = largest
        largest = a
if largest == wis and second_largest == cha or largest == cha and second_largest == str or largest == str and second_largest == cha or largest == str and second_largest == int:
 print ("PALADIN")

elif largest == str and second_largest == dex or largest == str and second_largest == con or largest == con and second_largest == str: 
 print ("BARBARIAN")

elif largest == str and second_largest == wis or largest == con and second_largest == wis or largest == wis and second_largest == str or largest == wis and second_largest == con:
 print ("CLERIC")

elif largest == int and second_largest == str or largest == int and second_largest == con or largest == con and second_largest == int or largest == wis and second_largest == int:
 print ("WIZARD")                     

elif largest == int and second_largest == dex or largest == dex and second_largest == int or largest == cha and second_largest == wis: 
 print ("ROGUE")

elif largest == int and second_largest == wis: 
 print ("DRUID")

elif largest == int and second_largest == cha or largest == con and second_largest == cha or largest == cha and second_largest == int: 
 print ("SORCERER")

elif largest == dex and second_largest == str: 
 print ("MONK")

elif largest == dex and second_largest == con or largest == con and second_largest == dex: 
 print ("FIGHTER")

elif largest == dex and second_largest == wis or largest == wis and second_largest == dex:
 print ("RANGER")

elif largest == dex and second_largest == cha: 
 print ("BARD")

elif largest == cha and second_largest == dex or largest == cha and second_largest == con:
 print ("WARLOCK")

Answer 1

Your code for getting the largest and second largest isn't right:

largest = None
second_largest = None

for a in data:
    if not largest or a > largest:
        if largest:
            second_largest = largest
        largest = a

If the largest attribute appears before the second largest, second_largest won't be filled in. A short and readable way would be just to use a sort, assuming efficiency isn't that much of a concern:

largest, second_largest = sorted(data, reverse=True)[:2]

Answer 2

If your largest element is the first, you will never get the second_largest assigned. You can change it to:

entlargest = -float('inf')
second_largest = -float('inf')

for a in data:
    if a > second_largest:
        second_largest = a
        if second_largest > largest:
             largest, second_largest = second_largest, largest