Python 在瓶子框架页面上显示MongoDB聚合故障
我试图在网页上显示我的MongoDB聚合，但我遇到了一个难以理解的错误。相对新的瓶子。任何帮助都将不胜感激 我的模式Python 在瓶子框架页面上显示MongoDB聚合故障,python,mongodb,aggregation-framework,bottle,Python,Mongodb,Aggregation Framework,Bottle,我试图在网页上显示我的MongoDB聚合，但我遇到了一个难以理解的错误。相对新的瓶子。任何帮助都将不胜感激 我的模式 db.complaints.findOne() { "_id" : ObjectId("55e5990d991312e2c9b266e3"), "complaintID" : 1388734, "product" : "mortgage", "subProduct" : "conventional adjustable mortgage (arm)
db.complaints.findOne()
{
"_id" : ObjectId("55e5990d991312e2c9b266e3"),
"complaintID" : 1388734,
"product" : "mortgage",
"subProduct" : "conventional adjustable mortgage (arm)",
"issue" : "loan servicing, payments, escrow account",
"subIssue" : "",
"state" : "va",
"ZIP" : 22204,
"submitted" : "web",
"received" : "2015-05-22",
"sent" : "2015-05-22",
"company" : "green tree servicing, llc",
"response" : "closed with explanation",
"timely" : "yes",
"disputed" : ""
}
import bottle
import pymongo
import sys
@bottle.route('/')
def home_page():
# connect to mongoDB
connection = pymongo.MongoClient('localhost', 27017)
# attach to test database
db = connection.customers
# get handle for names collection
complaints = db.complaints
# find a single document
aggr = db.complaints.aggregate([{"$group":{"_id":"$product", "Total_Product":{"$sum:1"}}},{"$sort":{"Total_Product":-1}},{"$project":{"_id":0, "product":"$_id", "Total_Product":1}}])
return bottle.template('cfpb', {'username':"Browse Aggregate Analytics", 'things':aggr})
bottle.debug(True)
bottle.run(host='localhost', port=8082)
<!DOCTYPE hml>
<html>
<head>
<title>Analytics </title>
</head>
<body>
<p>
{{username}}
<p>
<ul>
%for thing in things:
<li>{{thing[aggr]}}</li>
%end
</ul><p>
</body>
</html>
分析
{{username}}
%对于事物中的事物：
- {{thing[aggr]}
%结束
> Error: 500 Internal Server Error
> InvalidDocument("cannot convert value of type <type 'set'> to bson",)
> Traceback (most recent call last):
> File "C:\Python27\lib\site-packages\bottle.py", line 862, in _handle
> return route.call(**args)
> File "C:\Python27\lib\site-packages\bottle.py", line 1732, in wrapper
> rv = callback(*a, **ka)
> File "msc.py", line 16, in home_page
> aggr = db.complaints.aggregate([{"$group":{"_id":"$product", "Total_Product":{"$sum:1"}}},{"$sort":{"Total_Product":-1}},{"$project":{"_id":0,
> "product":"$_id", "Total_Product":1}}])
> File "C:\Python27\lib\site-packages\pymongo\collection.py", line 1421, in aggregate
> result = self._command(sock_info, cmd, slave_ok)
> File "C:\Python27\lib\site-packages\pymongo\collection.py", line 191, in _command
> allowable_errors)
> File "C:\Python27\lib\site-packages\pymongo\pool.py", line 189, in command
> self._raise_connection_failure(error)
> File "C:\Python27\lib\site-packages\pymongo\pool.py", line 316, in _raise_connection_failure
> raise error
> InvalidDocument: cannot convert value of type <type 'set'> to bson
>错误：500内部服务器错误
>InvalidDocument（“无法将类型的值转换为bson”，）
>回溯（最近一次呼叫最后一次）：
>文件“C:\Python27\lib\site packages\battle.py”，第862行，在_handle中
>返回路线。呼叫（**args）
>包装器中的文件“C:\Python27\lib\site packages\瓶子.py”，第1732行
>rv=回拨（*a，**ka）
>主页第16行的文件“msc.py”
>aggr=db.complaints.aggregate（[{“$group”：{“\u id”：“$product”，“Total\u product”：{“$sum:1”}}，{“$sort”：{“Total\u product”：-1}，{“$project”：{“\u id”：0，
>“产品”：“$\u id”，“总产品”：1}}]）
>文件“C:\Python27\lib\site packages\pymongo\collection.py”，第1421行，总计
>结果=self.\u命令（sock\u info、cmd、slave\u ok）
>文件“C:\Python27\lib\site packages\pymongo\collection.py”，第191行，在\ u命令中
>允许误差（U）
>命令中第189行的文件“C:\Python27\lib\site packages\pymongo\pool.py”
>自我提升连接失败（错误）
>文件“C:\Python27\lib\site packages\pymongo\pool.py”，第316行，在连接失败时
>提出错误
>InvalidDocument:无法将类型的值转换为bson
$sum