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Difference between BeautifulSoup and Scrapy crawler?
... Also, just curious. If you're actually using the API (which returns JSON) why would you need Beautiful Soup to parse?
– Jay Stevens
Aug 9 at 9:00
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...
How to find Unused Amazon EC2 Security groups
... assigned to Instances
for groupId in `aws ec2 describe-instances --output json | jq -r ".Reservations[].Instances[].SecurityGroups[].GroupId" | sort | uniq`
do
if [ $EC2LOOP -eq 0 ];
then
DEL_GROUP="'$groupId'"
else
DEL_GROUP=$DEL_GROUP",'$groupId'"
fi
let EC2LOO...
What is the difference between Elastic Beanstalk and CloudFormation for a .NET project?
...s simply a way to define all the resources needed for deployment in a huge JSON file. So a CloudFormation template might actually create two ElasticBeanstalk environments (production and staging), a couple of ElasticCache clusters, a DyanmoDB table, and then the proper DNS in Route53. I then uploa...
从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...用推荐算法时，代码也就7-8行，简单地有点像R了。为了使用简单的目标，Mahout推荐引擎必然要做到精巧的程序设计。
本文将介绍Mahout推荐引擎的程序设计。
目录
Mahout推荐引擎概况
标准化的程序开发过程
数据模型
相似度...
App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...界面
多媒体
通信
本文档描述您在使用App Inventor 2构建应用程序时所能用到的拓展，以打造界面更加酷炫、功能更加强大的App。
更多拓展请移步至《原版最全拓展一览》。
【实用小技...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...
It works, and it's easy to parse using json module in python. It's a solution! Compared to that, try using selenium or other stuff people are suggesting, it's more headache. If the alternative method was way more convoluted then I'd give it to you, but it's not t...
Insert text with single quotes in PostgreSQL
...
If you need to get the work done inside Pg:
to_json(value)
https://www.postgresql.org/docs/9.3/static/functions-json.html#FUNCTIONS-JSON-TABLE
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This IP, site or mobile application is not authorized to use this API key
I am using https://maps.googleapis.com/maps/api/geocode/json ? link with server key and user IP to find the latitude and longitude of any address, when I'm trying I find the error as
...
Differences between contentType and dataType in jQuery ajax function
...tely on the server side.
and:
dataType (default: Intelligent Guess (xml, json, script, or html))
Type: String
The type of data that you're expecting back from the server. If none is specified, jQuery will try to infer it based on the MIME type of the response (an XML MIME type will yield XML, in 1...
技术人员如何创业《一》—— 产品及想法 - 资讯 - 清泛网 - 专注C/C++及内核技术
...理论的解释，产品指一个能够满足用户的需求，我们能够使用可行的技术手段实现并且通过销售给用户给公司带来利润。好的产品指具有很好的用户体验，能够满足用户的刚性需求，受众用户市场空间很大，产品具有核心竞争力...