我正在尝试在下面运行此脚本，但标题中提到了错误。
这是脚本：
import requests
from bs4 import BeautifulSoup
import csv
import webbrowser
import io
def display(content, filename='output.html'):
with open(filename, 'wb') as f:
f.write(content)
webbrowser.open(filename)
def get_soup(session, url, show=False):
r = session.get(url)
if show:
display(r.content, 'temp.html')
if r.status_code != 200: # not OK
print('[get_soup] status code:', r.status_code)
else:
return BeautifulSoup(r.text, 'html.parser')
def post_soup(session, url, params, show=False):
'''Read HTML from server and convert to Soup'''
r = session.post(url, data=params)
if show:
display(r.content, 'temp.html')
if r.status_code != 200: # not OK
print('[post_soup] status code:', r.status_code)
else:
return BeautifulSoup(r.text, 'html.parser')
def scrape(url, lang='ALL'):
# create session to keep all cookies (etc.) between requests
session = requests.Session()
session.headers.update({
'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0',
})
items = parse(session, url + '?filterLang=' + lang)
return items
def parse(session, url):
'''Get number of reviews and start getting subpages with reviews'''
print('[parse] url:', url)
soup = get_soup(session, url)
if not soup:
print('[parse] no soup:', url)
return
num_reviews = soup.find('span', class_='reviews_header_count').text# get text
num_reviews = num_reviews[1:-1]
num_reviews = num_reviews.replace(',', '')
num_reviews = int(num_reviews) # convert text into integer
print('[parse] num_reviews ALL:', num_reviews)
url_template = url.replace('.html', '-or{}.html')
print('[parse] url_template:', url_template)
items = []
offset = 0
while(True):
subpage_url = url_template.format(offset)
subpage_items = parse_reviews(session, subpage_url)
if not subpage_items:
break
items += subpage_items
if len(subpage_items) < 5:
break
offset += 5
return items
def get_reviews_ids(soup):
items = soup.find_all('div', attrs={'data-reviewid': True})
if items:
reviews_ids = [x.attrs['data-reviewid'] for x in items][::2]
print('[get_reviews_ids] data-reviewid:', reviews_ids)
return reviews_ids
def get_more(session, reviews_ids):
url = 'https://www.tripadvisor.com/OverlayWidgetAjax?Mode=EXPANDED_HOTEL_REVIEWS_RESP&metaReferer=Hotel_Review'
payload = {
'reviews': ','.join(reviews_ids), # ie. "577882734,577547902,577300887",
#'contextChoice': 'DETAIL_HR', # ???
'widgetChoice': 'EXPANDED_HOTEL_REVIEW_HSX', # ???
'haveJses': 'earlyRequireDefine,amdearly,global_error,long_lived_global,apg-Hotel_Review,apg-Hotel_Review-in,bootstrap,desktop-rooms-guests-dust-en_US,responsive-calendar-templates-dust-en_US,taevents',
'haveCsses': 'apg-Hotel_Review-in',
'Action': 'install',
}
soup = post_soup(session, url, payload)
return soup
def parse_reviews(session, url):
'''Get all reviews from one page'''
print('[parse_reviews] url:', url)
soup = get_soup(session, url)
if not soup:
print('[parse_reviews] no soup:', url)
return
hotel_name = soup.find('h1', id='HEADING').text
reviews_ids = get_reviews_ids(soup)
if not reviews_ids:
return
soup = get_more(session, reviews_ids)
if not soup:
print('[parse_reviews] no soup:', url)
return
items = []
for idx, review in enumerate(soup.find_all('div', class_='reviewSelector')):
badgets = review.find_all('span', class_='badgetext')
if len(badgets) > 0:
contributions = badgets[0].text
else:
contributions = '0'
if len(badgets) > 1:
helpful_vote = badgets[1].text
else:
helpful_vote = '0'
user_loc = review.select_one('div.userLoc strong')
if user_loc:
user_loc = user_loc.text
else:
user_loc = ''
bubble_rating = review.select_one('span.ui_bubble_rating')['class']
bubble_rating = bubble_rating[1].split('_')[-1]
item = {
'review_body': review.find('p', class_='partial_entry').text,
'review_date': review.find('span', class_='ratingDate')['title'], # 'ratingDate' instead of 'relativeDate'
}
items.append(item)
print('\n--- review ---\n')
for key,val in item.items():
print(' ', key, ':', val)
print()
return items
def write_in_csv(items, filename='results.csv',
headers=['hotel name', 'review title', 'review body',
'review date', 'contributions', 'helpful vote',
'user name' , 'user location', 'rating'],
mode='w'):
print('--- CSV ---')
with io.open(filename, mode, encoding="utf-8") as csvfile:
csv_file = csv.DictWriter(csvfile, headers)
if mode == 'w':
csv_file.writeheader()
csv_file.writerows(items)
DB_COLUMN = 'review_body'
DB_COLUMN1 = 'review_date'
start_urls = [
'https://www.tripadvisor.ca/Hotel_Review-g60982-d87016-Reviews-Hilton_Hawaiian_Village_Waikiki_Beach_Resort-Honolulu_Oahu_Hawaii.html',
]
lang = 'en'
headers = [
DB_COLUMN,
DB_COLUMN1,
]
for url in start_urls:
# get all reviews for 'url' and 'lang'
items = scrape(url, lang)
if not items:
print('No reviews')
else:
# write in CSV
filename = url.split('Reviews-')[1][:-5] + '__' + lang
print('filename:', filename)
write_in_csv(items, filename + '.csv', headers, mode='w')
这是错误：
Traceback (most recent call last):
File "webscraping2.py", line 213, in <module>
items = scrape(url, lang)
File "webscraping2.py", line 50, in scrape
items = parse(session, url + '?filterLang=' + lang)
File "webscraping2.py", line 65, in parse
num_reviews = soup.find('span', class_='reviews_header_count').text # get text
AttributeError: 'NoneType' object has no attribute 'text'
有什么想法吗？我对网络爬虫很陌生，所以我有点迷失在这里。我认为这与数据结构有些不匹配，但我无法解决问题。所以我来这里看看你是否可以帮助我？
谢谢：）