How do I add more variables to the initialization after I import a module to a class in python?-CodePudding

I am trying to add more variables inside the initialization bracket after importing a module and I get an error,__init__ takes 3 positional arguments but four were given. How do I fix this?

#Module1
class(first):
  def __init__(self, word, count):
        self.word = word
        self.count = 0

                  
from Module1 import first                                       
class second(first):                                            
   def __init__(self, word, count, option):
     super().__init__(word, count, option)

     def new(word):
         types = type(word)
         if types == str:
            print(word)#if the word is a string print the word
            count  = 1#increment the value to 1
option1 = "first attempt"
word1 = "coding"
result = second(word1, 0, option1)
res = result.new(word1)
print(res)

I am getting an error(TypeError: __init__() takes 3 positional arguments but 4 were given )

CodePudding user response：

You can add the attribute option to the class second:

class first(object):
  def __init__(self, word, count):
        self.word = word
        self.count = 0
          
                                    
class second(first):                                           
    def __init__(self, word, count, option):
        super().__init__(word, count)
        self.option = option
     
    def new(self, word):
        types = type(word)
        if types == str:
            print(word) # if the word is a string print the word
            self.count  = 1  # increment the value to 1
           
            
option1 = "first attempt"
word1 = "coding"
result = second(word1, 0, option1)
res = result.new(word1)
print(res)

CodePudding user response：

What you are saying is that second needs an additional member variable. This is one of the patterns available through OOP, called "programming by difference". You just need to get second to do this:

class second(first):                                            
   def __init__(self, word, count, option):
     super().__init__(word, count)
     self.option = option

btw there are other problems with the rest of your code. If you need to, you can ask a separate question about that on stackoverflow.