Python-Web-Scraping mehrerer Seiten

Question

Ich kratzte alle Wörter von der Website Merriam-Webster .

Ich möchte alle Seiten ab az und alle darin enthaltenen Seiten kratzen und in einer Textdatei speichern. Das Problem, das ich habe, ist, dass ich nur das erste Ergebnis der Tabelle bekomme, anstatt alles. Ich weiß, dass dies eine große Menge an Text ist (ungefähr 500.000), aber ich mache es, um mich weiterzubilden.

CODE:

import requests
from bs4 import BeautifulSoup as bs

URL = 'https://www.merriam-webster.com/browse/dictionary/a/'

page = 1
# for page in range(1, 75):

req = requests.get(URL + str(page))
soup = bs(req.text, 'html.parser')
containers = soup.find('div', attrs={'class', 'entries'})
table = containers.find_all('ul')

for entries in table:
    links = entries.find_all('a')
    name = links[0].text
    print(name)

Jetzt möchte ich alle Einträge aus dieser Tabelle erhalten, aber stattdessen bekomme ich nur den ersten Eintrag.

Ich stecke hier irgendwie fest, also wäre jede Hilfe dankbar. Vielen Dank

https://www.merriam-webster.com/browse/medical/a-z
https://www.merriam-webster.com/browse/legal/a-z
https://www.merriam-webster.com/browse/dictionary/a-z
https://www.merriam-webster.com/browse/thesaurus/a-z

Answer 1

Um alle Einträge zu erhalten, können Sie dieses Beispiel verwenden:

import requests
from bs4 import BeautifulSoup


url = 'https://www.merriam-webster.com/browse/dictionary/a/'
soup = BeautifulSoup(requests.get(url).content, 'html.parser')

for a in soup.select('.entries a'):
    print('{:<30} {}'.format(a.text, 'https://www.merriam-webster.com' + a['href']))

Drucke:

(a) heaven on earth            https://www.merriam-webster.com/dictionary/%28a%29%20heaven%20on%20earth
(a) method in/to one's madness https://www.merriam-webster.com/dictionary/%28a%29%20method%20in%2Fto%20one%27s%20madness
(a) penny for your thoughts    https://www.merriam-webster.com/dictionary/%28a%29%20penny%20for%20your%20thoughts
(a) quarter after              https://www.merriam-webster.com/dictionary/%28a%29%20quarter%20after
(a) quarter of                 https://www.merriam-webster.com/dictionary/%28a%29%20quarter%20of
(a) quarter past               https://www.merriam-webster.com/dictionary/%28a%29%20quarter%20past
(a) quarter to                 https://www.merriam-webster.com/dictionary/%28a%29%20quarter%20to
(all) by one's lonesome        https://www.merriam-webster.com/dictionary/%28all%29%20by%20one%27s%20lonesome
(all) choked up                https://www.merriam-webster.com/dictionary/%28all%29%20choked%20up
(all) for the best             https://www.merriam-webster.com/dictionary/%28all%29%20for%20the%20best
(all) in good time             https://www.merriam-webster.com/dictionary/%28all%29%20in%20good%20time

...and so on.

---

So kratzen Sie mehrere Seiten:

url = 'https://www.merriam-webster.com/browse/dictionary/a/{}'

for page in range(1, 76):
    soup = BeautifulSoup(requests.get(url.format(page)).content, 'html.parser')
    for a in soup.select('.entries a'):
        print('{:<30} {}'.format(a.text, 'https://www.merriam-webster.com' + a['href']))

---

BEARBEITEN: Um alle Seiten von A bis Z zu erhalten:

import requests
from bs4 import BeautifulSoup


url = 'https://www.merriam-webster.com/browse/dictionary/{}/{}'

for char in range(ord('a'), ord('z')+1):
    page = 1
    while True:
        soup = BeautifulSoup(requests.get(url.format(chr(char), page)).content, 'html.parser')
        for a in soup.select('.entries a'):
            print('{:<30} {}'.format(a.text, 'https://www.merriam-webster.com' + a['href']))

        last_page = soup.select_one('[aria-label="Last"]')['data-page']
        if last_page == '':
            break

        page += 1

---

EDIT 2: So speichern Sie in einer Datei:

import requests
from bs4 import BeautifulSoup


url = 'https://www.merriam-webster.com/browse/dictionary/{}/{}'


with open('data.txt', 'w') as f_out:
    for char in range(ord('a'), ord('z')+1):
        page = 1
        while True:
            soup = BeautifulSoup(requests.get(url.format(chr(char), page)).content, 'html.parser')
            for a in soup.select('.entries a'):
                print('{:<30} {}'.format(a.text, 'https://www.merriam-webster.com' + a['href']))

                print('{}\t{}'.format(a.text, 'https://www.merriam-webster.com' + a['href']), file=f_out)

            last_page = soup.select_one('[aria-label="Last"]')['data-page']
            if last_page == '':
                break

            page += 1

Answer 2

Ich denke du brauchst noch eine Schleife:

for entries in table:
    links = entries.find_all('a')
    for name in links:
        print(name.text)