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习惯了在Java中直接执行client.zadd(key, score, member)来实现想zset集合中添加成员数据，但是在python中这就有点行不通了，会报错，错误实例如下：
rc.zadd(HISTORY_OPEN_TERM_ZSET, member, score)异常信息如下：
Connected to pydev debugger (build 182.5107.22)
Traceback (most recent call last):
File "/Applications/PyCharm.app/Contents/helpers/pydev/pydevd.py", line 1664, in <module>
main()
File "/Applications/PyCharm.app/Contents/helpers/pydev/pydevd.py", line 1658, in main
globals = debugger.run(setup['file'], None, None, is_module)
File "/Applications/PyCharm.app/Contents/helpers/pydev/pydevd.py", line 1068, in run
pydev_imports.execfile(file, globals, locals) # execute the script
File "/Users/wangleicdn/Workspace/pycharm/inner-project/lottery-project/src/main/once_update_history_to_redis.py", line 64, in <module>
update_to_redis(rc, data_dict)
File "/Users/wangleicdn/Workspace/pycharm/inner-project/lottery-project/src/main/once_update_history_to_redis.py", line 57, in update_to_redis
rc.zadd(HISTORY_OPEN_TERM_ZSET, member, score)
File "/Library/Python/2.7/site-packages/redis/client.py", line 2263, in zadd
for pair in iteritems(mapping):
File "/Library/Python/2.7/site-packages/redis/_compat.py", line 94, in iteritems
return x.iteritems()
AttributeError: 'str' object has no attribute 'iteritems'
Process finished with exit code 1
原因是什么，就是python的实现没有提供此种传参数的方法，而是以另一种形式来实现的，也就是借助dict进行传参，所以正确实现应该如下：
for d, x in data_dict.items():score = dmember = str(x)mapping = {member: score, }#rc.zadd(HISTORY_OPEN_TERM_ZSET, member, score) #错误rc.zadd(HISTORY_OPEN_TERM_ZSET, mapping) #正确也就是需要将member和score封装成dict后，再进行使用