Python3 Class Syntax Error: non-default argument follows default argument

Question

I'm messing around with Class' and I have a python3 file with the following code:

class playerstats(object):
def __init__(self, name, baselevel=1, hp, mana, basedmg=0, atkdmg, basedef=0, chardef):
    self.name = name
    self.baselevel = baselevel
    self.hp = hp
    self.mana = mana
    self.basedmg = basedmg
    self.atkdmg = atkdmg
    self.basedef = basedef
    self.chardef = chardef
    return self.name, self.baselevel, self.basedmg, self.basedef
def selectedclass(self, chosenclass):
    if chosenclass == 'W' or chosenclass == 'w':
        self.hp = 100
        self.mana = 50
    elif chosenclass == 'M' or chosenclass == 'm':
        self.hp = 75
        self.mana = 100
    else:
        print('Error')
    return self.hp, self.mana

charcreation = playerstats('Tom', baselevel, self.chosenclass, self.chosenclass, basedmg, 0, basedef, 0)

self.chosenclass = 'w'

print(playerstats.hp)

When I run it, I get this Error: File "..\Playground\", line 2 def init(self, name, baselevel=1, hp, mana, basedmg=0, atkdmg, basedef=0, chardef): ^ SyntaxError: non-default argument follows default argument

Can someone help me understand why?

user5777975 · Accepted Answer · 2018-05-22 09:41:17Z

8

You need to change the order of parameters in __init__ function.

Generally, non-default argument should not follow default argument , it means you can't define (a="b",c) in function.

The order of defining parameter in function are :

positional parameter or non-default parameter i.e (a,b,c)
keyword parameter or default parameter i.e (a="bcd",r="jef")
keyword-only parameter i.e (*args)
var-keyword parameter i.e (**kwargs)

answered May 22, 2018 at 9:41

user5777975

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3 Comments

user5777975 Over a year ago

@esteel: You need any more information or clarification ?

user5777975 Over a year ago

@esteel: Have you tested with above changes ?

esteel Over a year ago

I have and it worked but I got another error after that. Will post when I get home

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