python3.x中運行生產器AttributeError: 'generator' object has no attribute 'next'解決

在python3.x中需要將以前版本中的next改爲：__next__
 

def simpleGen():
    yield 1
    yield '2 --> punch!'

myG = simpleGen()
for eachItem in myG:
    print(eachItem)

運行結果：

1
2 --> punch!