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Yintoni iWebra Scraping? Iiprogram ze-Python eziPhezulu ze-10 ze-Python - i-Semalt Expert

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I-Web scraping indlela efanelekileyo yokuqokelela ulwazi kwi-intanethi. Isofthiwe yokuvuna iwebhu ifikelele kwiWebhu yeWebhu yehlabathi isebenzisa iProtokholi yokuTshintshiselwa kwe-Hypertext, iqokelela idatha kwiindawo ezahlukeneyo, iguqule ibe yifomu efundekayo. Iibhola zidlala indima ebalulekileyo ekuqoqweni kwedatha kunye nokutsalwa. Zinceda ukugcina umxholo okhutshwe kwiziko leenkcukacha ngokubanzi - ditrevit d.

Amaphepha eWebhu akhiwe ngokusetyenziswa kweelwimi ezahlukeneyo ezifana ne-HTML kunye ne-XHTML. Kungenxa yoko, iinkampani ziye zaphuhlisa iindlela ezahlukeneyo ze-web scraping kwaye zithembela kwi-DOM ukuxubusha, umbono wekhompyutha kunye nokusetyenziswa kolwimi ngokwemvelo ukufanisa ukuziphatha kwabantu. Ukwaziswa kwedatha kuthathwa njengento ekhangelekileyo kunye neendlela ezinengqiqo, kodwa luncedo kumashishini, abaprogram, abangekho amakhowudi, ii-webmasters, intatheli, abathengisi be-digital kunye nabalobi abazimele.

I-17 (web) ye-web scraper i-API inceda ukukhipha ulwazi kwiindawo ezihlukeneyo. Iinkampani ezifana ne-Google ne-Amazon zibonelela ngeenkonzo ezahlukeneyo ze-scraping kunye nezixhobo. Iifom zakamuva ze-web scraping zifumana izidlo zedata, i-RSS feeds, i-Twitter feeds, kunye ne-ATOM. I-JSON kunye ne-CSV zisetyenziswa njengendlela yokugcina izithuthi phakathi kwamaseva wewebhu kunye nabaxhasi. Ingqungquthela, Ukungenisa. I-Kimono Labs kunye neParseHub yizona zixhobo ezidumileyo zokucoca zewebhu . Ziza zombini kwiinguqulelo zamahhala kwaye zihlawulwe kwaye zikwazi ukufezekisa imisebenzi eninzi. Emva kokukhutshelwa kwaye kufakwe, ezi zixhobo zingakhangela amakhulu emanqaku ewebhu ngeyure.

Iipatrari ezili-10 eziphambili zeelayibrari kwi-web scraping:

I-Python yilwimi eliphezulu. Iqukethe inkqubo enamandla kunye nokuphathwa kweememori. I-Python isekela iiparadigms eziprogram ezihlukeneyo, ezinjenge-oriented-oriented, functional, procedural and imperative. Inombumbi omkhulu weelayibrari eziqhelekileyo, kodwa iilayibrari ezidumileyo zePython zichazwe ngezantsi.

1. Izicelo

Izicelo zincwadi yamathala e-Python HTTP egxininisa ekusebenzisaneni kweewebhu ezahlukeneyo. Iyakwazi ukulawula ii-cookies, ukugcina umkhondo weeseshoni ezingene ngemvume, nokuphatha iindawo ezisezantsi okanye ukuthatha ixesha elide ukuphendula. Ilayisenisi ye-Apache2 License, kunye nenjongo yezicelo zokuthumela izicelo ze-HTTP ngendlela enobubele kunye.

2. I-Scraping

I-scraping isofthiwe ye-web scraping ekunceda ukukhipha ulwazi oluncedo kwiiwebhusayithi ezahlukeneyo.

3. I-SQLAlchemy

I-SQLAlchemy yileyibrari yedatha efanelekileyo kubacebisi nabakhi bewebhu.

4. I-BeautifulSoup

Le thayibrari ye-HTML kunye ne-XML iyayinceda kuma-freelancers kunye neewebhumasters.

5. I-Lxml

Isixhobo sokusebenza kunye namaxwebhu e-XML kunye ne-HTML. Inceda ukuphonononga abakhethi be-XPath kunye ne-CSS kunye nokufumana izinto ezihambelana nomnatha.

6. I-Pygame

Lelayibrari yePython inceda ukufezekisa imisebenzi yokuphuhlisa umdlalo we-2D.

7. I-Pyglet

Yinkuthalo enamandla ye-3D kunye nenjini yendalo yemidlalo, eyaziwayo ngomsebenzisi wayo onobungane.

8. I-Nltk (i-Natural Language Toolkit)

Inceda ekusebenziseni imicu eyahlukeneyo kwaye inokuyenza imisebenzi emininzi ngexesha.

9. I-Nose

I-Nose isakhelo sokuvavanya sePython esisetyenziswe ngamakhulu eenkqubo kwihlabathi lonke.

10. SymPy

Nge SymPy, unokwenza imisebenzi emininzi kwaye uvavanye umgangatho wewebhu yakho.

December 22, 2017