convert json file to csv using python

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Using Jsoncpp to convert a JSON string to a vector

In the course of API testing, it is often encountered that the incoming parameters are complex types, and under Python, it is customary to use dictionaries to represent complex types. But C + + string processing is more mentally retarded, in general C + + will use vector to store complex types, then there is the problem of conversion, the following small section of code to convert the string into a vector o

Python MongoDB read/write CSV file

Label:#-*-Coding:utf-8-*-Import OSImport CSVImport PymongoFrom Pymongo import mongoclient #建立连接Client = mongoclient (' 10.20.4.79 ', 27017)#client = mongoclient (' 10.20.66.106 ', 27017)db_name = ' Ta ' #数据库名db = Client[db_name] In the Tvsplst collection of #读取CVS文件并插入到mongoDB数据库def Insertdatafromcvs (CSVFile):strfile = Unicode (csvfile, ' UTF8 ')If Os.path.isfile (strfile):ReadFile = File (strfile, ' RB ')Reader = Csv.reader (readFile)i = 0ListKey =

Python extracts millions of data to a CSV file

Transferred from: http://www.2cto.com/kf/201311/258112.htmlToday there is a need for the system all user registration ID and mailbox and other information exported to provide them, in MySQL count down, about 3.5 millionOn the attempt to use Python implementation, incidentally, the function of Python to write CSV, originally wanted to use the tool, but think the n

Using Gson to convert a map to a JSON sample _java

Using Gson to convert a map to JSONGson (also known as Google Gson) is an open-source Java library published by Google, which uses either a serialized Java object as a JSON string or a drag-formatted JSON string as a Java object. Gson Pom-dependent Copy Code code as follows: Code Copy Code

[Python] Read and plot data from CSV file

Install:Installinstall matplotlib # Check out of the doc from siteImportPandas as PDImportMatplotlib.pyplot as Plt fromNumPyImportmeandefload_df (symbol): return pd.read_csv ("data/{0}.csv". Format (symbol)) defget_max_close (symbol):"""Return The maximum closing value for stock idicicated by symbol. Note:data for a stock are stored in File:data/"""DF=load_df (symbol)returndf["Close"].max ()defget_mean_volume (symbol): DF=load_df (symbol)returnMean (d

Using XStream to convert between JavaBean and Xml/json

XML and JSON are two commonly used formats for data description and transmission today, especially when it comes to JS using JSON quite frequently. Naturally, in the Java world, it is the XStream and json-lib that are the components that JavaBean and the two formats convert

Ajax_ Basics _ Easily convert to JSON strings using the Jackson third-party toolkit

1. ThemeAjax_ using Jackson2. Learning Videos and MaterialsVideo http://pan.baidu.com/s/1c0euj40Courseware Http://pan.baidu.com/s/1eQEhSNCJar Package Jackson-annotations-2.2.1.jarJackson-core-2.2.1.jarJackson-core-asl-1.8.8.jarJackson-databind-2.2.1.jarJackson-mapper-asl-1.8.8.jarJackson-module-jaxb-annotations-2.2.1.jar3. Design Ideas4, Key points2. Create Org.codehaus.jackson.map.ObjectMapper object Objectmapper mapper = new Objectmapper ();//3, Cal

Convert the query result of Python sqlalchemy to JSON format

Recently, a third-party called API has been developed for a self-developed software platform. If the returned result set is in JSON format, it is easier to develop it in other languages, I found a lot of information on the Internet and didn't find it very suitable. Finally, I decided to change my mind to write a general one based on the information on the Internet. The main application scenario of this method is to

Python writes data to Excel or TXT, read in CSV format or XLS file

1. Write to Excel, you do not need to create a new excel at the beginning, will automatically generateAttribute_proba is the object I wrote.Import XLWT = XLWT. Workbook () = Myexcel.add_sheet ('sheet') si=-1 SJ =-1 for in attribute_proba: si=si+1 for in I: sj=sj+1 sheet.write (Si,sj,str (j)) SJ=-1 myexcel.save ( "attribute_proba_big.xls"2. Write txt, you need to create a new TXT file fr

Python file----CSV

1 #-*-coding:utf-8-*-2 " "3 Created on April 20, 20154 5 @author: Liuxue6 7 " "8 ImportCSV9 ImportSYSTen Reload (SYS) OneSys.setdefaultencoding ('Utf-8') A " " -Valuelist=[[]], double-decker list, each element represents a row of data - " " the - defCsvwrite (filename="", mode="", valuelist=[]): -csvfile=file (filename,mode) -Cstwriter=Csv.writer (csvfile) + forIinchRange (len (valueList)): -temp=[] +temp=Valuelist[i] A Cstwriter.writerow (t

Python crawls Sina Weibo comment data, written in CSV file

Because Sina Weibo web version crawler is more difficult, so take the mobile web-page crawlThe procedure is as follows:1. Web-site landing Sina Weibo2. Open m.weibo.cn3. Find the topic you are interested in and get the corresponding data interface link4. Access to cookies and headers#-*-coding:utf-8-*-ImportRequestsImportCSVImportOsbase_url='Https://m.weibo.cn/api/comments/show?id=4131150395559419page={page}'Cookies= {'Cookies':' xxx'} headers= {'user-agent':'XXX'}path= OS.GETCWD () +"/weibo.csv

How to convert XML into JSON using JavaScript _ javascript tips-js tutorial

This article mainly introduces how JavaScript converts XML into JSON. The example analyzes the XML file operation and format conversion techniques in javascript, which has some reference value, for more information about how to convert XML into JSON, see the example in this article. Share it with you for your reference

Resolves an issue where Chinese and & symbols are transcoded when using Javascriptconvert to convert objects to JSON

Description: For example, the object is var data=new {url= "Http://www.baidu.com?a=bc=d"}After serializing to JSON using Javascriptconvert, it becomes {URL: "Http://www.baidu.com?a=b\u0026c=d"} Symbol is transcoded to \u0026 how to turn it back?1. System.Text.RegularExpressions.Regex.Unescape (JSON) using regular expre

To convert the contents of an XML file to a JSON object

Using System;Using System.Collections.Generic;Using System.Linq;Using System.Text;Using System.Xml;Using System.Web.Script.Serialization;Using Newtonsoft.json;

CSV to XML using Python

#!/usr/bin/python#csvtoxml.py#encoding:utf-8importcsv,osfromxml.dom.minidomimport Document#prfixFile= "Creature_data" Defcreatexmlfile (fileprefix): csvfile=open (fileprefix+ '. csv ');headline= Csvfile.readline () #print headLinetypeList= Headline.split (', ') doc=document () dataroot= doc.createelement (fileprefix+ ' List ') dataroot.setattribute (' Xmlns:xsi ', " Http://www.w3.org/2001/XMLSchema-instanc

Jackson deserializes the generic list (using Javatype to convert the JSON string to a generic list)

New= "[{\" name\ ": \" A\ ", \" password\ ": \" 345\ "},{\" name\ ": \" b\ ", \" password\ ": \" 123\ "}]"; // The first of these methods New Typereference/**/}); The second method Javatype Javatype = Mapper.gettypefactory (). Constructcollectiontype (List.class, User.class); ListJackson, I feel like the fastest framework for converting between Java and JSON, and of course Google's Gson is good, but it looks like Jackson's faster than a

Python agent crawl into CSV file

Crawl High Stealth Agent1 fromUrllibImportRequest2 ImportRe3 Import Time4 5f = open ('West 1.csv','W', encoding='GBK')6headers = {7 'Cookies':'_free_proxy_session= Bah7b0kid3nlc3npb25fawqgogzfvekijtjjntgwnde4otyyntjinjlmmmu2ndfhzwewzjexmjfjbjsavekief9jc3jmx3rva2vubjsarkkimvd4thyybctnc w1yzmjfckpwudjfdnnzam5huctumgjlneg0ufuzde1xwta9bjsarg%3d%3d--a43f95e415d8ee53f36f90941dbab43b1503d84b',8 'user-agent':'mozilla/5.0 (Windows NT 10.0; WOW64) applewebkit/

Convert an array to a JSON string (without using the Json_encode function)

Convert an array to a JSON string (without using the Json_encode function)1 Public functionArraytojson ($arr,$jsonStr= ' '){2 $jsonStr. = ' {';3 foreach($arr as $key=$value) {4 if(Is_array($value)){5 $jsonStr=$this->arraytojson ($value,$jsonStr.‘"‘.$key.‘":‘).‘,‘;6}Else{7 $jsonStr. = ' "'.$key.‘":"

[JavaScript] Get URL parameters using regular expressions and convert them to JSON objects

Obtain URL parameters using regular expressions 1. method for obtaining a single parameter // Obtain the function getquerystring (name) {var Reg = new Regexp ("(^ | )" + name + "= ([^ ] *) using the URL parameter. ( | $) "); var r = Window. location. search. substr (1 ). match (REG); If (R! = NULL) return Unescape (R [2]); Return "";} 2. method for obtaining all parameters (

Use vs to convert Xml/json to model class file

Environment: VS2015 Win10 XML Example:OTA_GETRERSTATUSRQEchotoken= "b3bb9248255bd851ac94"UserName= "UserName"Password= "Password"Primarylangid= "en -us"TimeStamp= "2015-05-2722:21:21"Version= "1.000" >POS>Source>RequestoridType= "2"ID= "6792789769"/>Source>POS>UniqueIDID= "751511046"Type= "+">CompanyName>CompanyNameCompanyName>UniqueID>UniqueIDID= "100089106"Type= "Ten">CompanyName>CompanyNameCompanyName>UniqueID>lastrequest>Falselastrequest>OTA_GETRERSTATUSRQ>Steps: N

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