pymongo | 易学教程

Mongo Bounding Box Query with Limit

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问题 We are using mongo (via pymongo) to store a database of points in our system. This data is returned via our api using bounding box queries ($geoWithin). We want to limit the number of results returned to 200 sorted from the center. I'm trying to figure out the best way to do this. Currently, we get all items (no limit). Then, we calculate distance and sort in python. However, that those calculations very slow and memory intensive for large datasets. Anyone have better suggestions? I see in

Mongo collection query and Operators

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问题 From my collection I just want to return records that have either location or place information (Coordinates included) in the records. So if either condition is not null then it retrieves either or both fields if both conditions are not null. My query is this so far: cursor = coll.find({"$or" : [{"place.bounding_box.type" : {"$ne" : None }}, {"coordinates.type" : {"$ne" : None }}]}, {"coordinates.coordinates" :1}, {"place.bounding_box.coordinates" : 1}, tailable = True, timeout = False) But I

全网最全的Windows下Anaconda2 / Anaconda3里正确下载安装用来向微信好友发送消息的itchat库（图文详解）

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　　　　不多说，直接上干货！问题详情　　　　这个问题，很普遍。如我这里想实现，Windows下Anaconda2 / Anaconda3里正确下载安装用来向微信好友发送消息的itchat库。　　　　见，我撰写的全网最全的Windows下Anaconda2 / Anaconda3里正确下载安装用来向微信好友发送消息的itchat库（图文详解）　　　　出现： PS C:\Anaconda3\Scripts> pip3.exe install itchat Collecting itchat Could not find a version that satisfies the requirement itchat (from versions: ) No matching distribution found for itchat 　　　　或者出现：　　cmd中想用pip安装pymongo模块　　显示黄色错误信息ReadTimeoutError和ConnectTimeoutError 　　Retrying几次之后显示红色错误信息 Could not find a version that satisfies the requirement pymongo(from version:) No matching distribution found for pymongo

Updating database from a list of dictionaries

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问题 In Python, I have a list of dictionaries. The list is called members and each member has a unique id . For example, the list could look like this: members = [{'id':1, 'val1':10, 'val2':11}, {'id':2, 'val1':2, 'val2':34}, {'id':3, 'val1':350, 'val2':9}] I want to update my collection with the list of members, updating and inserting new entries as necessary. Do I need to loop through the members, or is there a faster way? Here's my attempt, which seems to do what I want but takes a while: for m

Robot Framework操作mongodb数据库

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RF对mongodb操作需要安装以下两个库: 1、pymongo 可以采用 pip install pymongo；（如果下载过慢，可指定下载源，如：http: pypi.douban.com/simple ）；也可以下载到本地安装，下载地址：https: pypi.python.org/pypi/pymongo/#downloads 2、robotframework-mongodblibrary 下载地址： https://github.com/iPlantCollaborativeOpenSource/Robotframework-MongoDB-Library 切换到下载解压包下，用 python setup.py install命令安装即可打开ride，导入MongoDBLibrary库就可以对mongodb进行增、删、改、查操作，亦可参考：http: blog.csdn.net/r455678/article/details/52902351 获取验证码操作Mongodb方法截图如下：断言部分一直用的这个Should Contain X Times函数。来源： https://www.cnblogs.com/greattao/p/10559242.html

Parse XML file to fetch required data and store it in mongodb database in Python

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问题 I have an XML file which looks like this: XML File I want to fetch following information from this file for all the events: Under category event: start_date end_date title Under category venue: address address_2/ city latitude longitude name postal_code and then store this information in a mongodb database. I don't have much experience in parsing. Can someone please help me with this! Thanks ! 回答1: from pymongo import MongoClient import xml.etree.ElementTree as ET from urllib2 import urlopen

Find distinct documents with max value of a field in mongodb

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问题 I have thousands of documents in MongoDB with some of the sample as below: {"title":"Foo", "hash": "1234567890abcedf", "num_sold": 49, "created": "2013-03-09 00:00:00"} {"title":"Bar", "hash": "1234567890abcedf", "num_sold": 55, "created": "2013-03-11 00:00:00"} {"title":"Baz", "hash": "1234567890abcedf", "num_sold": 55, "created": "2013-03-10 00:00:00"} {"title":"Spam", "hash": "abcedef1234567890", "num_sold": 20, "created": "2013-03-11 00:00:00"} {"title":"Eggs", "hash": "abc1234567890def",

Using Pymongo to connect to MongoDB on AWS instance from Windows

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问题 An error is repeatedly being thrown at this line: client = MongoClient('ec2-12-345-67-89.us-east-2.compute.amazonaws.com', 27017, ssl=True, ssl_keyfile='C:\\mongo.pem') (Paths and instance name changed for obvious reasons) The port (27017) for mongo is allowed inbound connections from my AWS security group. First, I allowed only my IP, now I'm allowing all via that port. I have tried preceding the connection string with "mongodb://" and removing the SSL arguments (I'm fairly certain I don't

Windows Azure Web sites python

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问题 After a whole load of hard work I've eventually got a hello world flask app running on Windows Azure, the app is built locally and runs fine, deploying it to Azure is a nightmare though. So I've sort of got two questions here. I can't seem to get a stack trace at all, I've tried setting things in web.config, but the documentation on how to use all this stuff is just apawling, all I can find is just literally badly written blog posts dotted around one of microsoft's millions of blogs. Which

PyMongo and toArray() method

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问题 I need to make some benchmarks on a small database (64MB) and I need to figure out what is the smartest way to fetch whole Mongo collection into python object with PyMongo? In JavaScript, there is toArray() method but I cannot find anything similar in python. Thanks in advance! 回答1: Have you tried? result = list(db.collection.find()) 来源： https://stackoverflow.com/questions/8723613/pymongo-and-toarray-method