TypeError: Object of type 'float32' is not JSON serializable

2019年6月16日 812次阅读 来源: ShellCollector

原文：http://blog.csdn.net/gqixf/article/details/78954021

class MyEncoder(json.JSONEncoder):
    def default(self, obj):
        if isinstance(obj, np.integer):
            return int(obj)
        elif isinstance(obj, np.floating):
            return float(obj)
        elif isinstance(obj, np.ndarray):
            return obj.tolist()
        else:
            return super(MyEncoder, self).default(obj)

json_1 = {'num':1112, 'date':datetime.now()}
print(json.dumps(json_1, cls=MyEncoder))
# json.dumps(numpy.float32(1.2), cls=MyEncoder) # json.dumps(numpy.arange(12), cls=MyEncoder) # json.dump({'a': numpy.int32(42)}，fp,cls=MyEncoder)

    原文作者：ShellCollector
    原文地址: https://blog.csdn.net/jacke121/article/details/79231972
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