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Semalt Expert Anowedzera paIndaneti Data Extraction Tools

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. Vanhu vanoshandisa zvibhuku zvekutsvaga zvinyorwa zvewebsite kuti vawane ruzivo rwakakosha kubva kune webhusaiti iyo inogona kuwanika kune kutengeserana kune imwe nzvimbo yekuchengetedza motokari kana dhesi rakasara. A web scraper software isiri iyo inogona kushandiswa kukwakuka nekukohwa ruzivo rwewebsite semuchina wezvigadzirwa, nzvimbo yose yewebhu (kana zvikamu), zvigadzirwa pamwe nemifananidzo. Iwe unogona kukwanisa kuwana chero zvinyorwa zvewebsite kubva pane imwe nzvimbo asi pasina API yepamutemo yekutarisana nedharedhi yako.

Muchikamu chino SEO, pane zvidzidzo zvinokosha izvo zvidzidzo izvi zvekushandiswa kwemasayiti yepawebsite - base per lampada da scrivania. Iwe unogona kukwanisa kudzidza nzira iyo spider inotora nzira yekucheka kuchengetedza webhusaiti yepa data nenzira yakarongeka yewebhuku rekuunganidza data. Tichakurukura BrickSet webhusaiti yekubvisa zvombo. Iyi domain ndiyo inzvimbo-based webhusaiti ine zvinyorwa zvakawanda pamusoro peETGO. Iwe unofanirwa kuita shanduro yePython yokugadzirisa iyo inogona kuenda kunewebsite yeBrickSet uye chengetedza ruzivo sezvo data inogadzirisa pahwindo rako. Iyi web scraper inowedzera uye inogona kushandura kushanduka kwemazuva anotevera pakushanda kwayo.

Zvinotarisirwa

Kuti munhu aite Python web scraper, unoda nzvimbo yekusimudzira nzvimbo yePython 3. Iyi mamiriro ekuchengetedzwa kwepanyika iyi ndiyo Python API kana Software Development Kit pakuita zvimwe zvezvikamu zvinokosha zvewebhu yako crawler software. Kune matanho mashomanana aanogona kutevera paanoita chigadziro ichi:

Kuumba gadziriro yakakosha

Muchikamu chino, unofanira kukwanisa nekutsvaga mapeji ewebhu webhusaiti zvakarongeka. Kubva pano, unokwanisa kutora mapeji ewebhu uye kubvisa iwe zvaunoda kubva kwavari. Zvirongwa zvepurogiramu yakasiyana zvinogona kukwanisa kuita izvi. Wechikwata chako anofanira kukwanisa kunyora peji imwe chete panguva imwe chete, pamwe nekukwanisa kuchengetedza data nenzira dzakasiyana-siyana.

Unofanirwa kutora Chikoro cheScrappy chegandara rako. Semuenzaniso, zita redu rekate brickset_spider. Nhamba yacho inofanira kutaridzika seyi:

pip install script

Tsamba yekodhi iyi i Python Pip inogona kuitika zvakafanana seyetambo:

mkdir brickset-scraper

Tsamba iyi inogadzira zvinyorwa zvitsva. Iwe unogona kuenda kwairi uye unoshandisa mamwe mirairo seyakatora inopinza sezvinotevera:

touch scraper. py

December 22, 2017