Static Method Attribute Error In Python

Question

In .../CthuluPackage In CthuluCore.py, I have:

class Dice(object):
    @staticmethod
    def __RollSkillMenu():
        bonus=int(input("Bonus>"))
        penalty=int(input("Penalty>"))
        return Dice.RollSkill(bonus-penalty)

In CthuluSkills.py, I have

from CthuluPackage.CthuluCore import *
import inspect
class SkillCheckResult(object):
    def __init__(self,targetSkill):
        self.TargetSkill=targetSkill
        print(Dice)
        self.Roll=Dice.__RollSkillMenu()

When I attempt to create a SkillCheckResult, I get the message:

AttributeError: type object 'Dice' has no attribute '_SkillCheckResult__RollSkillMenu'

Which really confuses me, because as far as I know I'm not trying to call anything named Dice.SkillCheckResult_RollSkillMenu,I'm only trying to call Dice.RollSkillMenu. Why is python prepending this to my method call?

I may have, yes. I was just trying to find a way to edit this post — Benjamin
– Benjamin, Commented Mar 19, 2014 at 7:08

user2357112 · Accepted Answer · 2019-04-10 08:14:29Z

2

Any name appearing within a class body that starts with two underscores and does not end with two underscores automatically gets _TheNameOfTheClass prepended to it. Methods or attributes so named are supposed to be class-internal; if you want to access them from subclasses or other external code, you have to add the _TheNameOfTheClass prefix manually.

It looks like __RollSkillMenu isn't supposed to be internal to the Dice class. If so, then don't make the name start with two underscores. Just use one, or if it's supposed to be part of the public interface, don't use any underscores at all. In fact, you may want to consider moving it out of the class entirely.

If it is supposed to be internal to the Dice class, then stop trying to access it from SkillCheckResult.

edited Apr 10, 2019 at 8:14

answered Mar 19, 2014 at 7:59

user2357112

286k32 gold badges490 silver badges569 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Static Method Attribute Error In Python

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related