我用谷歌搜索在python中处理mongodb，接下来出现了 https://bitbucket.org/djcbeach/monary/wiki/Home
基于这个链接monary假设比pymongo好，但是这个链接的比较来自查询，我们希望看到写入mongodb（插入）的差异所以我们根据链接的示例代码做了以下
from monary import Monary
from monary import monary_param as mp
import numpy as np
import time
NUM_BATCHES = 3500
BATCH_SIZE = 200
start = time.time()
types = ["float64"] * 5
fields = ["x1", "x2", "x3", "x4", "x5"]
global params
with Monary("127.0.0.1") as monary:
for i in xrange(NUM_BATCHES):
for l in xrange(BATCH_SIZE):
stuff = [ ]
for j in xrange(5):
record = dict(x1=random.uniform(0, 1),
x2=random.uniform(0, 2),
x3=random.uniform(0, 3),
x4=random.uniform(0, 4),
x5=random.uniform(0, 5)
)
stuff.append(record)
params = mp.MonaryParam.from_lists(np.array(stuff), fields)
monary.insert('mydb','collection',params)
end =time.time()
print 'Total time elapsed: %02d:%02d'% divmod((end - start), 60)
为什么我们不断收到错误？
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-58-9ad6ec8c81e5> in <module>()
25 stuff.append(record)
26 #print len(np.array(stuff.append(record)))
---> 27 params = mp.MonaryParam.from_lists(np.array(stuff), fields)
28 monary.insert('mydb','collection',params)
29 # with Monary("127.0.0.1") as monary:
/Users/kelvin/anaconda/envs/gl-env/lib/python2.7/site-packages/monary/monary_param.pyc in from_lists(cls, data, fields, types)
77 raise ValueError(
78 "Data and fields must be of equal length.")
---> 79 return cls.from_groups(zip(data, fields))
80 else:
81 if not (len(data) == len(fields) == len(types)):
/Users/kelvin/anaconda/envs/gl-env/lib/python2.7/site-packages/monary/monary_param.pyc in from_groups(cls, groups)
93 - `groups`: List of items to be passed to MonaryParam.
94 """
---> 95 return list(map(lambda x: cls(x), groups))
96
97 def __len__(self):
/Users/kelvin/anaconda/envs/gl-env/lib/python2.7/site-packages/monary/monary_param.pyc in <lambda>(x)
93 - `groups`: List of items to be passed to MonaryParam.
94 """
---> 95 return list(map(lambda x: cls(x), groups))
96
97 def __len__(self):
/Users/kelvin/anaconda/envs/gl-env/lib/python2.7/site-packages/monary/monary_param.pyc in __init__(self, array, field, mtype)
39 if len(array) == 2:
40 array, field = array
---> 41 mtype = str(array.data.dtype)
42 else:
43 array, field, mtype = array
AttributeError: 'dict' object has no attribute 'data