Lære Attributter og Indhold af Flere Elementer | Arbejde med Elementattributter i Beautiful Soup

Alle metoderne, der blev gennemgået i det forrige kapitel, kan anvendes på alle elementer med et bestemt tag (dvs. på resultatet af .find_all()-metoden). Det er dog vigtigt at huske, at resultatet af at anvende .find_all()-metoden er en liste, så du skal bruge attributter og metoder for hvert enkelt element. Ligesom tidligere bør du også anvende en for-løkke i denne sammenhæng. For eksempel kan vi hente alle attributterne for alle <div>-elementer.


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# Importing libraries
from bs4 import BeautifulSoup
from urllib.request import urlopen

# Reading web page
url = "https://codefinity-content-media.s3.eu-west-1.amazonaws.com/18a4e428-1a0f-44c2-a8ad-244cd9c7985e/jesus.html"
page = urlopen(url)
html = page.read().decode("utf-8")

# Reading HTML with BeautifulSoup
soup = BeautifulSoup(html, "html.parser")
for div in soup.find_all("div"):
  print(div.attrs)

Den samme tilgang gælder for udtræk af tekst. For eksempel kan vi hente al teksten fra alle <p>-elementer.


              12345678910111213
            
# Importing libraries
from bs4 import BeautifulSoup
from urllib.request import urlopen

# Reading web page
url = "https://codefinity-content-media.s3.eu-west-1.amazonaws.com/18a4e428-1a0f-44c2-a8ad-244cd9c7985e/jesus.html"
page = urlopen(url)
html = page.read().decode("utf-8")

# Reading HTML with BeautifulSoup
soup = BeautifulSoup(html, "html.parser")
for p in soup.find_all("p"):
  print(p.get_text())

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Sektion 3. Kapitel 3

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Suggested prompts:

Can you explain what the `.attrs` attribute does in BeautifulSoup?

How can I extract specific attributes from the `<div>` elements?

What other tags can I use with `.find_all()` besides `<div>` and `<p>`?

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              12345678910111213
            
# Importing libraries
from bs4 import BeautifulSoup
from urllib.request import urlopen

# Reading web page
url = "https://codefinity-content-media.s3.eu-west-1.amazonaws.com/18a4e428-1a0f-44c2-a8ad-244cd9c7985e/jesus.html"
page = urlopen(url)
html = page.read().decode("utf-8")

# Reading HTML with BeautifulSoup
soup = BeautifulSoup(html, "html.parser")
for div in soup.find_all("div"):
  print(div.attrs)

Den samme tilgang gælder for udtræk af tekst. For eksempel kan vi hente al teksten fra alle <p>-elementer.


              12345678910111213
            
# Importing libraries
from bs4 import BeautifulSoup
from urllib.request import urlopen

# Reading web page
url = "https://codefinity-content-media.s3.eu-west-1.amazonaws.com/18a4e428-1a0f-44c2-a8ad-244cd9c7985e/jesus.html"
page = urlopen(url)
html = page.read().decode("utf-8")

# Reading HTML with BeautifulSoup
soup = BeautifulSoup(html, "html.parser")
for p in soup.find_all("p"):
  print(p.get_text())

Var alt klart?

Tak for dine kommentarer!

Sektion 3. Kapitel 3