Retrieving Webpage Links with Python and BeautifulSoup
Extracting links from web pages is a common task in web scraping. This can be easily accomplished using Python's BeautifulSoup library.
Using SoupStrainer
For optimal performance, utilize BeautifulSoup's SoupStrainer. This class allows for targeted parsing by specifying the desired tag type. For retrieving links, use:
parse_only=SoupStrainer('a')
Retrieving Link URLs
To obtain the URLs of the links, examine the 'href' attribute of the 'a' tag:
for link in BeautifulSoup(response, 'html.parser', parse_only=SoupStrainer('a')): if link.has_attr('href'): print(link['href'])
BeautifulSoup Documentation
Refer to the extensive BeautifulSoup documentation for further guidance:
Additional Notes
SoupStrainer enhances performance by reducing memory consumption and processing time. It is particularly useful when the content being parsed is known beforehand.
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