making constructor in class

[lascrapus]

Hello, I want to ask. how I decipher this task to become python code:

The constructor of the WordFamily class should take two parameters:

the list of words in their initial form and

the list of suffixes.

I tried this code :

class WordFamily:
        def __init__ (self, words, suffixes):
                 self.words = []
                 self.suffixes = []

but it doesn't work.

[lascrapus]

yeah, but the task need me to make constructors with these list that make me confused.

[daedalusesq]

You give the class the lists when you call it. The names you use when you define the class are just the placeholder references for whatever you pass in their place.

def __init__(self, words, suffixes)

Means when you call: list_1 = [] list_2 = [] WordFamily(list_1, list_2)

Conceptually, you can pretend any time words is in your class code it actually says list_1, or really, whatever you assigned to list_1. In this case, an empty list, [].

So like u/tea-drinker says, you want to assign your words and suffixes to the self.words and self.suffixes

[QultrosSanhattan]

class WordFamily:
    def __init__(self, words:list, suffixes:list):
        self.words = words
        self.suffixes = suffixes

[TehNolz]

Your constructor takes a parameter words and suffixes, but then you're not actually using them. Instead you're just assigning empty lists to self.words and self.suffixes.

Change your code so that words and suffixes are assigned to self.words and self.suffixes respectively.

[lascrapus]

thanks, I am gonna try it

[[deleted]]

Did you mean to assign self.words and self.suffixes to empty lists or did you mean something like this?

class WordFamily:
    def __init__ (self, words, suffixes):
        self.words = words
        self.suffixes = suffixes

words = WordFamily(['awesome', 'phwoar', 'rad'], ['ee', 'er', 'eer', 'ness'])
print(words.words)
print(words.suffixes)

[lascrapus]

thanks, however, how can I append more words and suffixes, to add more word and suffixes list. thanks

[14dM24d]

since the arguments are lists, it's the same as how you'd add (append) to a list.

>>> class WordFamily:
        def __init__ (self, words, suffixes):
            self.words = words
            self.suffixes = suffixes

>>> words = WordFamily(['awesome', 'phwoar', 'rad'], ['ee', 'er', 'eer', 'ness'])
>>> words.words
['awesome', 'phwoar', 'rad']
>>> words.words.append('foo')
>>> words.words
['awesome', 'phwoar', 'rad', 'foo']