Why is an instance of my class not being recognised in the method parameters?-CodePudding

I am having an issue in Python with using a class instance attribute as the default value of a method parameter. Let me show you the code which is spitting out an error:

class Table():

    # then a bunch of other methods and an __init__

    def print_table(self,message = f'Current bet: {human.bet}'):
        
        self.human_cards(human.hold_cards)
        self.info_lines(human,cpu,message)
        self.cpu_cards(cpu.hold_cards)
        
        for item in self.hum_print:
            print(item)
        for item in self.info_print:
            print(item)
        for item in self.cpu_print:
            print(item)

my error is :

NameError                                 Traceback (most recent call last)
<ipython-input-7-bf1a6f19a3b1> in <module>
----> 1 class Table():
      2 
      3 
      4     def __init__(self, length, height, card_width = 10, card_spacing = 5):
      5         self.length = length

<ipython-input-7-bf1a6f19a3b1> in Table()
     44         self.info_print = [line1, line2, line3, line4, line5, line6]
     45 
---> 46     def print_table(self,message = f'Current bet: {human.bet}'):
     47 
     48         self.human_cards(human.hold_cards)

NameError: name 'human' is not defined

human is a instance of a Player class and I use the attribute human.bet in other methods in this Table class perfectly fine. No instance of the Table class is called before human is defined, is there a way to use an attribute in this way?

CodePudding user response：

Your code will always raise NameError until name 'human' is present in the same scope where class table is defined (before table class definition). You can add name by importing it or defining it in the same module.

from some_module import human

class Table():
    def print_table(self,message = f'Current bet: {human.bet}'):

human = Player()

class Table():
    def print_table(self,message = f'Current bet: {human.bet}'):

Anyways its a bad dependency.