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Uchwepheshe we-Semalt Wakha I-Website Data Extraction Tools

1 answers:

Ukuhlungwa kweWebhu kuhilela isenzo sokuqoqa idatha yewebhusayithi usebenzisa umqambi webhu. Abantu basebenzisa amathuluzi okukhipha idatha yedatha ukuze bathole ulwazi olubalulekile kusuka kuwebhusayithi engatholakala ukuthunyelwa kwelinye idrayivu yesitoreji sendawo noma database edelekile. Isofthiwe ye-web scraper iyithuluzi elingasetshenziselwa ukukhasa nokuvuna ulwazi lewebhusayithi njengezigaba zomkhiqizo, iwebhusayithi yonke (noma izingxenye), okuqukethwe kanye nezithombe - slotastic online casino. Ungakwazi ukuthola noma yikuphi okuqukethwe kwewebhusayithi kusuka kwesinye isayithi ngaphandle kwe-API esemthethweni yokusebenzisana nedatha yakho.

Kulesi sihloko se-SEO, kunemigomo eyisisekelo lapho amathuluzi okukhipha idatha ewebhusayithi asebenza khona. Ungakwazi ukufunda indlela isicabucabu esenza ngayo inqubo yokukhwabanisa ukulondoloza idatha yewebhu ngendlela ehlelekile yokuqoqwa kwedatha yewebhusayithi. Sizocubungula ithuluzi lekususwa kwedatha lewebhu leBrickSet. Lesi sizinda iwebhusayithi ye-community equkethe ulwazi oluningi mayelana nezinethi ze-LEGO. Kumele ukwazi ukwenza ithuluzi lokukhipha i-Python elisebenzayo elingaya kwiwebhusayithi ye-BrickSet bese ulondoloza ulwazi njengoba idatha isetha esikrinini sakho. Le-scraper yewebhu iyanda futhi ingafaka izinguquko zesikhathi esizayo ekusebenzeni kwayo.

Okudingekayo

Omunye ukwenza i-Python web scraper, udinga indawo yokuthuthukiswa yendawo yePython 3. Le ndawo yokugijima i-Python API noma i-Software Development Kit ngokwenza ezinye zezingxenye ezibalulekile zesofthiwe yakho ye-crawler. Kukhona izinyathelo ezimbalwa ongayilandela uma wenza leli thuluzi:

Ukwakha isikhala esiyisisekelo

Kulesi sigaba, udinga ukwazi ukuthola nokulanda amakhasi wewebhu wewebhusayithi ngokuhlelekile. Kusuka lapha, ungakwazi ukuthatha amakhasi wewebhu bese ukhipha ulwazi olufunayo kubo. Izilimi ezahlukene zokuhlela zingakwazi ukufeza le mpumelelo. Umqambi wakho kufanele akwazi ukukhomba ikhasi elingaphezu kweyodwa ngesikhathi esisodwa, kanye nokukwazi ukugcina idatha ngezindlela ezihlukahlukene.

Udinga ukuthatha isigaba se-Scrappy se-spider yakho. Ngokwesibonelo, igama lethu lesicabangulu li-brickset_spider. Okukhiphayo kufanele kubonakale kufana nalokhu:

iskripthi sokufaka ipayipi

Le khodi yocingo i-Python Pip engase ifane ngendlela efanayo nocingo:

mkdir brickset-scraper

Lolu chungechunge ludala isiqondisi esisha. Ungayifinyelela kuyo futhi usebenzise eminye imiyalo efana nokufaka kokuthinta ngale ndlela:

thinta isikhalazo. py

December 22, 2017