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![Akshaan Mazumdar](https://secure.gravatar.com/avatar/a57065324ac747fba46142e0a49c9162?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Akshaan Mazumdar
3,787 PointsCode not working
Please check the @classmethod. Challenge is not passing. Thanks
class Letter:
def __init__(self, pattern=None):
self.pattern = pattern
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,strx):
x=strx.split('-')
xx=[]
for y in x:
if y == "dash":
xx.append('-')
else:
xx.append('.')
pattern=xx
class S(Letter):
def __init__(self):
pattern = ['.', '.', '.']
super().__init__(pattern)
1 Answer
![Steven Parker](https://uploads.teamtreehouse.com/production/profile-photos/969492/micro_tool_chess_set_2.jpg)
Steven Parker
230,688 PointsYou're close, but your method needs to create and return a new instance with the pattern loaded into it. So the final line of the method should be something like this:
return cls(xx)
Then, the one other issue is that instead of a hyphen, a "dash" should be represented in the pattern as an underscore ("_").
Akshaan Mazumdar
3,787 PointsAkshaan Mazumdar
3,787 PointsThanks Steven Parker !! . Your answers have really helped me learn and finish Object Oriented Python quickly!!