forked from susanli2016/NLP-with-Python
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
567931f
commit 4a4ecc2
Showing
1 changed file
with
223 additions
and
0 deletions.
There are no files selected for viewing
223 changes: 223 additions & 0 deletions
223
Web scraping Hilton Hawaiian Village TripAdvisor Reviews.py
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,223 @@ | ||
|
||
# coding: utf-8 | ||
|
||
# In[ ]: | ||
|
||
|
||
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') | ||
|