Python and JSON via Redis does not seem to work -


i having trouble python , json.

1) send dictionary redis via json. use json dump dict on producer , loads consumer:

#this dictionary args = {"last_observed_date": "2014-04-08t02:05:00", "tau": 2, "interval": 5, "backcast": 5, "series": "exr:eur_usd:2014-04-08t02:05:00", "k": 5, "is_difference": false, "m": 3, "is_log": false, "last_time": null, "pair": "eur_usd", "granularity": "minute", "series_name": "closebid", "method": [{"ols": {"alpha": 0.5}}]}

producer server:

args = json.dumps(args) r.lpush(model_queue,args)

consumer server:

args = r.brpop(model_queue,0)[1] args = json.loads(args)  traceback (most recent call last):   file "/home/ubuntu/workspace/forex-trading/chaos/chaos_worker.py", line 38, in <module>     data = json.loads(data)   file "/usr/lib/python2.7/json/__init__.py", line 326, in loads     return _default_decoder.decode(s)   file "/usr/lib/python2.7/json/decoder.py", line 366, in decode     obj, end = self.raw_decode(s, idx=_w(s, 0).end()) typeerror: expected string or buffer

my question why, when dump dictionary string, can't decode when retrieved redis?

flow this: dictionary string -> redis -> string dictionary. dump on producer , load on consumer.

you can not pass dictionary json.loads, have pass json string. try:

args = json.loads(json.dumps(args))

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