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Python Object-Oriented Python Advanced Objects Iterable Album

Posted by Sinazo Nongena
Sinazo Nongena
2,517 Points

Here is a class called Album that holds a list of songs. Add an _iter_ method to our Album class and use yield or yie

Here is a class called Album that holds a list of songs. Add an iter method to our Album class and use yield or yield from so the songs in our album can be iterated through

I am struggling with this please help

iter_album.py 
class Album:
    def __init__(self):
        self.songs = []
    def add(self, song):
        self.songs.append(song)
    # insert your code here
def __iter__(self):
    yield from self.pattern

    def __str__(self):
        output = []
        for blip in self:
            if blip == '.':
                output.append('dot')
            else:
                output.append('dash')
        return '-'.join(output)

    @classmethod
    def from_string(cls, string):
        stringList = string.split('-')
        patternList = []
        for blip in stringList:
            if (blip.lower() == 'dash'):
                patternList.append('_')
            elif (blip.lower() == 'dot'):
                patternList.append('.')
            else:
                pass
                return cls(pattern=patternList)



class S(Letter):
    def __init__(self):
         pattern = ['.', '.', '.']
         super().__init__(pattern)

2 Answers

Josh Keenan
Josh Keenan
20,315 Points
Josh Keenan
Josh Keenan
20,315 Points

You don't need to add any of this:

 def __str__(self):
        output = []
        for blip in self:
            if blip == '.':
                output.append('dot')
            else:
                output.append('dash')
        return '-'.join(output)

    @classmethod
    def from_string(cls, string):
        stringList = string.split('-')
        patternList = []
        for blip in stringList:
            if (blip.lower() == 'dash'):
                patternList.append('_')
            elif (blip.lower() == 'dot'):
                patternList.append('.')
            else:
                pass
                return cls(pattern=patternList)



class S(Letter):
    def __init__(self):
         pattern = ['.', '.', '.']
         super().__init__(pattern)

Remove it as it has nothing to do with the challenge.

Lee Vaughn
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STAFF
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Lee Vaughn
Treehouse Teacher
Lee Vaughn
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Lee Vaughn
Treehouse Teacher

Hi Sinazo!

In addition to what Josh mentioned above having some extra code that you don't need for this challenge, in your _iter_ method you want to iterate through the songs in the album, not "pattern".

I hope that helps!