0 
class Bin():
a=[]
def g(self,e):
    self.a.append(e)
o=Bin()
o.g(3)
o.g(4)
o.g(5)
o.g(6)

Traceback (most recent call last):
  File "<string>", line 28, in <module>
File "<string>", line 9, in bs
NameError: name 'a' is not defined

how to deal with this error? i wanna append the list inside the class with given elements and use the list 'a' in other class methods too.

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  • Your indentation is wrong. Commented Jun 4, 2021 at 10:21

1 Answer 1

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1

Fix your indentation:

class Bin:
    a = []

    def g(self, e):
        self.a.append(e)


o = Bin()
o.g(3)
o.g(4)
o.g(5)
o.g(6)

print(Bin.a)

Output : [3, 4, 5, 6]

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