Learning how to write a Class and Object first time

Question

So I am using the hardest way to learn python and I am on exercise 40, and below is the code that we are instructed to write into a file named ex40.py:

class Song(object):

    def _init_(self, lyrics):
        self.lyrics = lyrics

    def sing_me_a_song(self):
        for line in self.lyrics:
            print line

happy_bday = Song(["Happy birthday to you",
                   "I don't want to get sued",
                   "So I'll stop right there"])

bulls_on_parade = Song(["They rally around the family",
                         With pockets full of shells"])

happy_bday.sing_me_a_song()

bulls_on_parade.sing_me_a_song()

Then to run it, I am doing: python ex40.py and I am receiving error:

MacBook-Pro-3:PythonsScripts$ python ex40.py

Traceback (most recent call last):
  File "ex40.py", line 12, in <module>
    "So I'll stop right there"])
TypeError: object() takes no parameters

Possible duplicate of [Python object creation](http://stackoverflow.com/questions/1164309/python-object-creation) — Alberto Bonsanto, Nov 11 '15 at 21:52
@AlbertoBonsanto Nope. This is just a typographical error. That question's asking something completely different. — Ethan Bierlein, Nov 11 '15 at 21:55
first rule of debugging: look for errors in your code (hint: the TypeError tells you where to look) — miraculixx, Nov 11 '15 at 21:55

score 3 · Accepted Answer · answered Nov 11 '15 at 21:53

3

You need to have two underscores around magic methods like __init__. That means this:

def _init_(self, lyrics):
    self.lyrics = lyrics

Should become this:

def __init__(self, lyrics):
    self.lyrics = lyrics

answered Nov 11 '15 at 21:53

Ethan Bierlein

3,353
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will do, once it allows me too =) – aznjonn Nov 11 '15 at 21:56

score 1 · Answer 2 · answered Nov 11 '15 at 21:54

1

The _init_ function should be __init__.

I can also see, just from syntax highlighting, that the last string you use in the file is missing starting double-quotes

answered Nov 11 '15 at 21:54

Brian

2,172
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1

Thanks, i think i missed that quote when i copied it over. i do have it in the actual file – aznjonn Nov 11 '15 at 21:59

Learning how to write a Class and Object first time

2 Answers2