Web Scraping With Ruby
Introduction to web scraping with Ruby. How to handle http connections, parse html files for data, best practices, tips and an example project.
The most popular package that implements XPath selectors in Python is lxml. We can use the xpath() method to find all matching values:
from lxml import etree
tree = etree.fromstring("""
<div>
<a>link 1</a>
<a>link 2</a>
</div>
""")
for result in tree.xpath("//a"):
print(result.text)
"link 1"
"link 2"
However, in web scraping the recommended way is to use the parsel package. It's based on lxml and providers a more consistent behavior when working with HTML content:
from parsel import Selector
selector = Selector("""
<div>
<a>link 1</a>
<a>link 2</a>
</div>
""")
selector.xpath("//a").getall()
['<a>link 1</a>', '<a>link 2</a>']
Introduction to web scraping with Ruby. How to handle http connections, parse html files for data, best practices, tips and an example project.
Introduction to xpath in the context of web-scraping. How to extract data from HTML documents using xpath, best practices and available tools.
Introduction to web scraping with PHP. How to handle http connections, parse html files for data, best practices, tips and an example project.
