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class It: | |
"""An example of iterators.""" | |
def __init__(self, max_, start=1, increment=1): | |
self.max_ = max_ | |
self.start = start | |
self.increment = increment | |
self.counter = self.start - self.increment | |
def __iter__(self): | |
return self | |
def __next__(self): | |
self.counter += self.increment | |
if self.counter > self.max_: | |
raise StopIteration | |
return self.counter | |
it = It(101, 7, 3) | |
for i in it: | |
print(i) | |
class Fibonacci: | |
"""Fibonacci sequence implementation.""" | |
def __init__(self, max_): | |
self.max_ = max_ | |
self.current = 0 | |
self.next = 1 | |
def __iter__(self): | |
return self | |
def __next__(self): | |
self.current, self.next = self.next, self.current + self.next | |
if self.current > self.max_: | |
raise StopIteration | |
return self.current | |
fib = Fibonacci(12000) | |
for itm in fib: | |
print(itm) |
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