Web Scraping with Beautiful Soup
Find All

If we want to find all of the occurrences of a tag, instead of just the first one, we can use .find_all().

This function can take in just the name of a tag and returns a list of all occurrences of that tag.

['<h1>World's Best Chocolate Chip Cookies</h1>', '<h1>Ingredients</h1>']

.find_all() is far more flexible than just accessing elements directly through the soup object. With .find_all(), we can use regexes, attributes, or even functions to select HTML elements more intelligently.

Using Regex

What if we want every <ol> and every <ul> that the page contains? We can select both of these types of elements with a regex in our .find_all():

import re soup.find_all(re.compile("[ou]l"))

What if we want all of the h1 - h9 tags that the page contains? Regex to the rescue again!

import re soup.find_all(re.compile("h[1-9]"))

Using Lists

We can also just specify all of the elements we want to find by supplying the function with a list of the tag names we are looking for:

soup.find_all(['h1', 'a', 'p'])

Using Attributes

We can also try to match the elements with relevant attributes. We can pass a dictionary to the attrs parameter of find_all with the desired attributes of the elements we’re looking for. If we want to find all of the elements with the "banner" class, for example, we could use the command:


Or, we can specify multiple different attributes! What if we wanted a tag with a "banner" class and the id "jumbotron"?

soup.find_all(attrs={'class':'banner', 'id':'jumbotron'})

Using A Function

If our selection starts to get really complicated, we can separate out all of the logic that we’re using to choose a tag into its own function. Then, we can pass that function into .find_all()!

def has_banner_class_and_hello_world(tag): return tag.attr('class') == "banner" and tag.string == "Hello world" soup.find_all(has_banner_class_and_hello_world)

This command would find an element that looks like this:

<div class="banner">Hello world</div>

but not an element that looks like this:

<div>Hello world</div>

Or this:

<div class="banner">What's up, world!</div>



Find all of the a elements on the page and store them in a list called turtle_links.


Print turtle_links. Is this what you expected?

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