ihs pipeline data

This article mainly introduces how to save collected data to mongodb using the scrapy custom pipeline class. it involves scrapy's skills in collecting and operating mongodb databases and has some reference value, for more information about how to save collected data to mongodb, see the example in this article. Share it with you for your reference. The details are

The example in this paper describes how the Scrapy custom pipeline class implements the method of saving the collected data to MongoDB. Share to everyone for your reference. Specific as follows: # Standard Python Library imports# 3rd party modulesimport pymongofrom scrapy import logfrom scrapy.conf import SETTINGSFR Om scrapy.exceptions Import dropitemclass mongodbpipeline (object): def __init__ (self):

over.Initializepalette ();double[,] x = null;double[,] y = null;double[,] z = null;double[,] values = NULL;Creategeometrypipe (out x, off y, out z);Createvalueswaterdrops (out values);Updatemesh (x, y, z, values);V.surfacemeshseries3d.add (_mesh);V.yaxisprimary3d.units.text = "°c";_chart. EndUpdate ();SummarizeContour Topographic map can be used synthetically to judge the condition of the sight, hydrological characteristics of water system, climatic characteristics, topography and location sele

The example in this article describes the Scrapy custom pipeline class implementation method that saves data collected to MongoDB. Share to everyone for your reference. as follows: # Standard Python Library Imports # 3rd party modules import Pymongo to scrapy import lo G from scrapy.conf Import settings from scrapy.exceptions Import Dropitem class Mongodbpipeline (object): Def __init__ (SE LF): Sel

operation of another or more processes in one process IPC communication queues queue Pipeline pipeI. interprocess communication (Queues and pipelines)Determine if the queue is emptyFrom multiprocessing Import Process,queueq = Queue () print (Q.empty ())Execution output: TrueDetermine if the queue is full　From multiprocessing Import Process,queueq = Queue () print (Q.full ())Execution output: FalseIf the queue is full, then the operation to increment

;//fix him a pinch . - the PrivateString name;Bayi transient intAge//cannot be serialized after use of transient the StaticString country= "cn";//Static also cannot be serialized thePerson (String name,intage,string Country) { - This. name=name; - This. age=Age ; the This. country=Country; the } the PublicString toString () { the returnname+ "=" +age+ "=" +Country; - } the}Dark Horse programmer--java Basic--io Stream (iii)-sequ

{//Set up basic white vertex lighting//set white vertex illuminationMaterial {Diffuse (1,1,1,1)//Diffuse color setting Ambient (1,1,1,1)//ambient light reflection color setting} Lighting on//Use texture alpha-to-blend up-to-white (= Full illumination)//use texture alpha to blend white (full glow)SetTexture [_maintex] {Constantcolor (1,1,1,1)//Custom ColorsCombine constant lerp (texture) Previous}//Multiply in Texture//and texture multiplicationSetTexture [_maintex] {combine previous*Texture}} }

Dynamic | The main idea of the data has been solved, the following start to write detailed design (in the Sybase ASE database for example, others to expand): 1. Establish the middle-tier table vdt_columns, which is used to build the column data in the pipeline. To perform similar code generation: Ls_sql = "CREATE Table Vdt_columns" (" Ls_sql + = "UID int nul