I am using beautifulsoup to get all the links from a page. My code is:
import requests
from bs4 import BeautifulSoup
url = 'http://www.acontecaeventos.com.br/marketing-promocional-sao-paulo'
r = requests.get(url)
html_content = r.text
soup = BeautifulSoup(html_content, 'lxml')
soup.find_all('href')
All that I get is:
[]
How can I get a list of all the href links on that page?
You are telling the find_all method to find href tags, not attributes.
You need to find the <a> tags, they're used to represent link elements.
links = soup.find_all('a')
Later you can access their href attributes like this:
link = links[0] # get the first link in the entire page
url = link['href'] # get value of the href attribute
url = link.get('href') # or like this
Replace your last line:
links = soup.find_all('a')
By that line :
links = [a.get('href') for a in soup.find_all('a', href=True)]
It will scrap all the a tags, and for each a tags, it will append the href attribute to the links list.
If you want to know more about the for loop between the [], read about List comprehensions.
To get a list of everyhref regardless of tag use:
href_tags = soup.find_all(href=True)
hrefs = [tag.get('href') for tag in href_tags]