generators.py

import types


# Basic
def test():
 print("emre")
 yield 1
 print("cetin")
 yield 2

for itreator_obje in test():
 print("----")


def gerisay(sayi):
 while sayi > 0:
 yield sayi
 sayi -= 1

print("3'ten geri sayiniz : ")
a = gerisay(3)
print(next(a))
print(next(a))
print(next(a))


# Fibonacci Örneği
def fibonacci():
 a, b = 1, 1
 while 1:
 yield a
 a, b = b, a+b

# Fibonacci Test
if isinstance(fibonacci(), types.GeneratorType):
 print("\nGood, The fib function is a generator")

 step = int(input("How many step do you want to see ? : "))
 for n in fibonacci():
 print(n)
 step -= 1
 if step == 0:
 break