How to use Python parsing HTML development library Pyquery

For example

The code is as follows:

Director : Tom Tykwer/Lana Wachowski/Andy Vodoski

screenwriter : Tom Tykwer/Andy Vodoski/Lana Wachowski

starring : Tom Hanks/Halle Berry/Jim Braudbent/Hugo • Weaving/Jim Stergis/BAE Doona/Ben Wishow/James Dasi/Zhou Xun/Kess David/David Gijaci/Susan Sarandon/Hugh Grant /c4>

Type: plot/Sci Fi/Suspense

Official website:Cloudatlas.warnerbros.com

Production country/region:Germany/USA/HONG Kong/Singapore

Language:English

Release Date: 2013-01-31 (Mainland China)/2012-10-26 (USA)

length of the film: 134 mins (Mainland China)/172 minutes (USA)

IMDb Links:tt1371111

Official station:
The film "Cloud"

The code is as follows:

From pyquery import Pyquery as PQ
DOC=PQ (url= ' http://movie.douban.com/subject/3530403/')
Data=doc ('. pl ')
For I in data:
Print PQ (i). Text ()

Output

The code is as follows:

Director
Writers
Starring
Type:
Official website:
Production Country/region:
Language:
Release Date:
Length of the film:
IMDb Links:
Official station:

Usage

Users can use the Pyquery class to load XML documents from strings, lxml objects, files, or URLs:

The code is as follows:

>>> from pyquery import Pyquery as PQ
>>> from lxml import etree
>>> doc=pq ("")
>>> DOC=PQ (Etree.fromstring (""))
>>> DOC=PQ (Filename=path_to_html_file)
>>> doc=pq (url= ' http://movie.douban.com/subject/3530403/')

You can choose objects like jquery.

The code is as follows:

>>> doc ('. Pl ')
[ , , , , , , , , , , , , , , , , , , , ]

In this way, all objects of class ' pl ' are selected.

However, the text needs to be re-encapsulated when using iterations:

The code is as follows:

For Para in Doc ('. pl '):
PARA=PQ (para)
Print Para.text ()
Director
Writers
Starring
Type:
Official website:
Production Country/region:
Language:
Release Date:
Length of the film:
IMDb Links:
Official station:

The text that gets here is the Unicode code that needs to be encoded as a string if you want to write the file.
Users can use some of the pseudo-classes provided by jquery (but do not yet support CSS) to operate, such as:

The code is as follows:

>>> doc ('. Pl:first ')
[ ]
>>> Print doc ('. Pl:first '). Text ()
Director

Attributes
Get the attributes of an HTML element

The code is as follows:

>>> P=PQ ('

') (' P ')
>>> p.attr (' id ')
' Hello '
>>> p.attr.id
' Hello '
>>> p.attr[' id ']
' Hello '

Assign value

The code is as follows:

>>> p.attr.id= ' plop '
>>> p.attr.id
' Plop '
>>> p.attr[' id ']= ' ola '
>>> p.attr.id
' Ola '
>>> p.attr (id= ' Hello ', class_= ' Hello2 ')
[ ]

Traversing
Filter

The code is as follows:

>>> D=PQ ('

Hello

World

')
>>> d (' P '). Filter ('. Hello ')
[ ]
>>> d (' P '). Filter (' #test ')
[ ]
>>> d (' P '). Filter (lambda i:i==1)
[ ]
>>> d (' P '). Filter (lambda i:i==0)
[ ]
>>> d (' P '). Filter (lambda I:PQ (this). Text () = = ' Hello ')
[ ]

In order select

Code as follows:

>>> d (' P '). EQ (0)
[ ]
>>> d (' P '). EQ (1)
[ ]

Select inline elements

Code as follows:

>>> d (' P '). EQ (1). Find (' a ')
[]

Select parent element

code is as follows:

>>> d=pq ('

whoah!

there

')
>>> D (' P '). EQ (1). Find (' em ')
[ ]
>>> d (' P '). EQ (1). Find (' em ' ). End ()
[

]
>>> D (' P '). EQ (1). Find (' em '). End (). Text ()
' there '
>>> D (' P '). EQ (1). Find (' em '). End (). end ()
[

,

]

