Why does this error occur?
"AttributeError: 'list' object has no attribute 'append'" with this code?
class Stack :
def __init__(self) :
self.items = []
def push(self, item) :
self.items.apend(item)
def pop(self) :
return self.items.pop()
def isEmpty(self) :
return (self.items == [])
s = Stack()
s.push(54)
print s.pop()
It was just a typo. You forgot a 'p' in 'append'
Switch
self.items.apend(item)
by
self.items.append(item)
In addition, you need to retract this block to the correct scope.
s = Stack()
s.push(54)
print s.pop()
The final code would look like this
class Stack :
def __init__(self) :
self.items = []
def push(self, item) :
self.items.append(item)
def pop(self) :
return self.items.pop()
def isEmpty(self) :
return (self.items == [])
s = Stack()
s.push(54)
print(s.pop())
See working online here