How to use xpath in Scrapy?

by jayson.maggio , in category: Python , a year ago

How to use xpath in Scrapy?

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1 answer

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by sabryna , a year ago

@jayson.maggio 

To use XPath in Scrapy, you can use the xpath() method provided by Scrapy's Selector class to select elements from an HTML or XML document.


Here's a simple example of how to use xpath() to extract the text content of all the p elements in an HTML document:

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import scrapy
from scrapy.selector import Selector

html = '<html><body><p>Hello World!</p><p>This is a test</p></body></html>'

# Use the Selector class to parse the HTML
selector = Selector(text=html)

# Use the xpath() method to select all the p elements
p_elements = selector.xpath('//p')

# Extract the text content of the p elements
for p in p_elements:
    text = p.xpath('text()').get()
    print(text)


This will output the following:

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Hello World!
This is a test


You can also use XPath expressions to select specific elements based on their attributes or the structure of the document. For example, the following XPath expression will select all the a elements with a href attribute that starts with http:

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a_elements = selector.xpath('//a[starts-with(@href, "http")]')


For more information on XPath and how to use it in Scrapy, you can refer to the Scrapy documentation and the XPath syntax reference.