Shirye-shiryen da Python ba kawai game da warware matsalolin ba, amma har ma fahimtar yadda tsarin bayanai da algorithms ke aiki. Lokacin da ya zo ga gogewar yanar gizo ko ฦaddamar da takaddun HTML, ษaya daga cikin al'amurran da suka fi dacewa shine samun dama ga abubuwan iyaye cikin sauฦi; anan ne lxml ya shigo cikin wasa. Wannan ษakin karatu mai sassauฦa yana ba masu haษaka damar samun duk wani abu na bishiyar HTML ko XML, wanda ke sa cire bayanai ya fi sauฦi.
Laburaren lxml na Python yana da kyakkyawan mafita don matsalar gama gari samun damar abubuwan iyaye. Yana ba masu shirye-shirye damar kewaya tsarin bishiyar cikin sauฦi. Ayyukan getparent() yana da amfani musamman a lokuttan da aka san sashin yara amma ba iyayensa ba.
from lxml import etree
root = etree.Element("root")
child1 = etree.SubElement(root,"child1")
child2 = etree.SubElement(root,"child2")
print(child1.getparent())
print(child2.getparent())
Fahimtar Code
Lambar misali tana ba da bayyananniyar nunin yadda za'a iya amfani da aikin hatparent().
Da farko, muna shigo da ษakin karatu da ake buฦata, lxml's etree. Sa'an nan, an halicci tushen tushen da abubuwa biyu na yara. Kiran getparent() akan waษannan abubuwan yara zai dawo da tushen tushen kasancewar waษannan ษiyan tushen kai tsaye ne.
Fitowar lambar zata nuna iyayen child1 da child2, watau tushen tushen.
Binciken lxml Library
The lxml ษakin karatu wani kayan aiki ne mai mahimmanci ga masu haษaka Python da ke tsunduma cikin lalata yanar gizo ko rarraba takaddun HTML da XML.
- Laburaren yana da sauฦi mai sauฦin amfani don tantance waษannan takaddun.
- Ya haษu da sauri da haษakar ษakunan karatu na C (libxml2/libxslt) tare da sauฦin Python.
- Bayan ayyuka na gaba ษaya kamar tantancewa, serializing, da ฦirฦirar takaddun XML/HTML, lxml yana ba da babban API don ฦarin hadaddun ayyuka kamar XSLT, XPath, Relax NG, da ฦari mai yawa.
Muhimmancin iyaye ()
The uwa() Aiki kayan aiki ne mai ฦarfi don kewaya tsarin bishiyar HTML ko takaddun XML. A cikin yanayi da yawa, za ku sami damar yin amfani da takamaiman kashi, amma kuna buฦatar nemo iyayensa. Ba tare da iyaye () ba, mafi sauฦi mafi sauฦi zai kasance mai jujjuyawa akan cikakkiyar itacen takarda, amma tare da mahaifar lxml (), zaku iya ษaukar iyaye kai tsaye, adana lokaci da ikon lissafi.
Fahimtar ษakin karatu na lxml da aikace-aikacen hanyoyi kamar su iyaye () na iya daidaita ayyukan coding ษinku sosai, musamman lokacin sarrafa bayanan HTML ko XML. Tare da Python da lxml, an sanye ku don aiwatar da ayyuka da yawa cikin sauฦi da inganci.
