Lære Navigering i HTML-dokument | Afkodning af HTML med Beautiful Soup

Efter at have læst HTML-dokumentet, har du fleksibilitet til at navigere på flere måder. For at undersøge nærmere kan du specificere et tag ligesom en attribut. For eksempel kan vi undersøge <head>-elementet og repræsentere det i en 'struktureret' form (ved at anvende .prettify()-metoden).


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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")
print(soup.head.prettify())

Du kan eksperimentere ved at erstatte .head-attributten med for eksempel .body. Som vist ovenfor indeholder <head>-elementet flere underordnede elementer. Du kan iterere gennem alle elementernes underordnede ved hjælp af en for-løkke og .children-attributten.


              1234567891011121314
            
# 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")
# Iterating over all element children
for child in soup.head.children:
  print(child)

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              123456789101112
            
# 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")
print(soup.head.prettify())


              1234567891011121314
            
# 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")
# Iterating over all element children
for child in soup.head.children:
  print(child)

Var alt klart?

Tak for dine kommentarer!

Sektion 2. Kapitel 2