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21_iteratory.py
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21_iteratory.py
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class IteratorOdwracajacy:
def __init__(self, data):
self.data = data
self.index = len(data)
def __iter__(self):
return self
def __next__(self):
if self.index == 0:
raise StopIteration
self.index = self.index - 1
return self.data[self.index]
class IteratorZdania:
def __init__(self, zdanie):
self.zdanie = zdanie
self.index = 0
self.slowa = zdanie.split()
def __iter__(self):
return self
def __next__(self):
if self.index >= len(self.slowa):
raise StopIteration
self.index += 1
return self.slowa[self.index - 1]
if __name__ == "__main__":
lista = [1, -5, 9]
iterator_listy = iter(lista)
print("Iterator listy:")
print(iterator_listy)
print(next(iterator_listy))
print(next(iterator_listy))
print(next(iterator_listy))
# print(next(iterator_listy)) # StopIteration
print("\nIterator odwracajacy liste:")
iterator_odwracajacy = IteratorOdwracajacy(lista)
for element in iterator_odwracajacy:
print(element)
print("\nIterator odwracajacy napis:")
iterator_odwracajacy_napis = IteratorOdwracajacy("Ala")
for element in iterator_odwracajacy_napis:
print(element)
print("\nIterator zdania:")
iterator_zdania = IteratorZdania("Ala ma kota")
for element in iterator_zdania:
print(element)