AttributeError: 'collections.OrderedDict' object has no attribute 'iteritems'

开发环境:win10+python3.6+Eclipse

错误代码:for intersection, traffic_light in self.intersections.iteritems():

错误描述:AttributeError: 'collections.OrderedDict' object has no attribute 'iteritems'

原因:python3中用items()代替python2中的iteritems(),同理还有iterkeys等,都需要去掉iter前缀

正确代码:for intersection, traffic_light in self.intersections.items():

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