Iteratorlerin Oluşturulması ve Kullanılması.ipynb

Kernel: Python 3

liste = [1,2,3,4,5]

dir(liste)

['__add__',
 '__class__',
 '__contains__',
 '__delattr__',
 '__delitem__',
 '__dir__',
 '__doc__',
 '__eq__',
 '__format__',
 '__ge__',
 '__getattribute__',
 '__getitem__',
 '__gt__',
 '__hash__',
 '__iadd__',
 '__imul__',
 '__init__',
 '__init_subclass__',
 '__iter__',
 '__le__',
 '__len__',
 '__lt__',
 '__mul__',
 '__ne__',
 '__new__',
 '__reduce__',
 '__reduce_ex__',
 '__repr__',
 '__reversed__',
 '__rmul__',
 '__setattr__',
 '__setitem__',
 '__sizeof__',
 '__str__',
 '__subclasshook__',
 'append',
 'clear',
 'copy',
 'count',
 'extend',
 'index',
 'insert',
 'pop',
 'remove',
 'reverse',
 'sort']

iterator = iter(liste)

print(iterator)

<list_iterator object at 0x000000792684FA90>

next(iterator)

1

next(iterator)

2

next(iterator)

3

next(iterator)

4

next(iterator)

5

next(iterator)

---------------------------------------------------------------------------
StopIteration                             Traceback (most recent call last)
<ipython-input-18-3733e97f93d6> in <module>()
----> 1 next(iterator)

StopIteration: 

liste = [1,2,3,4,5]

for i in liste:
    print(i)

1
2
3
4
5

iterator = iter(liste)

while True:
    try:
        print(next(iterator))
    except StopIteration:
        break

1
2
3
4
5

class Kumanda():
    def __init__(self,kanal_listesi):
        self.kanal_listesi = kanal_listesi
        self.index = -1
    def __iter__(self):
        return self
    def __next__(self):
        self.index += 1
        if self.index < len(self.kanal_listesi):
            return self.kanal_listesi[self.index]
        else:
            self.index = -1
            raise StopIteration
            
        

kumanda = Kumanda(["Atv","Trt","Fox","Kanal D","Bloomberg"])

iterator = iter(kumanda)

next(iterator)

'Atv'

next(iterator)

'Trt'

next(iterator)

'Fox'

next(iterator)

'Kanal D'

next(iterator)

'Bloomberg'

next(iterator)

---------------------------------------------------------------------------
StopIteration                             Traceback (most recent call last)
<ipython-input-56-3733e97f93d6> in <module>()
----> 1 next(iterator)

<ipython-input-48-e4c21cf75a4c> in __next__(self)
     11         else:
     12             self.index = -1
---> 13             raise StopIteration
     14 
     15 
StopIteration: 

for i in kumanda:
    print(i)

Atv
Trt
Fox
Kanal D
Bloomberg