I need help understanding a program structure using classes

[CompleteNewb]

I can't pass variable as a argument in a function called inside a function inside a class?

Why not?

class Function_Test :
	def __init__ (self):
		pass

	def show (self, text) :
		print (text)

	def say_this (self, text) :
		self.show (text)

tester = Function_Test ()
tester.say_this ('This text was sent to a function from a function inside a class instance.')

Yeah, but what i can't do this

class Function_Test :
	def __init__ (self):
		pass
        
	def say_this (self, text) :
		self.show (text)
   	
def show (text):
    print (text)
    
tester = Function_Test ()
tester.say_this ('This text was sent to a function from a function inside a class instance.')

So if i want to check the highest hand one of my class player has, i need to put the function to check if a hand has a pair(because I need to check if it has a pair, a straight or a flush) inside my player class, right?

class Player: