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class MyGen:
def __init__(self):
self.v = 0
def __iter__(self):
return self
def __next__(self):
self.v += 1
if self.v > 5:
raise StopIteration
return self.v
def gen():
yield from MyGen()
def gen2():
yield from gen()
print(list(gen()))
print(list(gen2()))
class Incrementer:
def __iter__(self):
return self
def __next__(self):
return self.send(None)
def send(self, val):
if val is None:
return "Incrementer initialized"
return val + 1
def gen3():
yield from Incrementer()
g = gen3()
print(next(g))
print(g.send(5))
print(g.send(100))
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