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Исходный код для урока (https://youtu.be/KPXPr-KS-qk)
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#!/usr/bin/env python3 | |
import csv | |
import urllib.request | |
from bs4 import BeautifulSoup | |
BASE_URL = 'http://www.weblancer.net/projects/' | |
def get_html(url): | |
response = urllib.request.urlopen(url) | |
return response.read() | |
def get_page_count(html): | |
soup = BeautifulSoup(html) | |
paggination = soup.find('div', class_='pages_list text_box') | |
return int(paggination.find_all('a')[-2].text) | |
def parse(html): | |
soup = BeautifulSoup(html) | |
table = soup.find('table', class_='items_list') | |
rows = table.find_all('tr')[1:] | |
projects = [] | |
for row in rows: | |
cols = row.find_all('td') | |
projects.append({ | |
'title': cols[0].a.text, | |
'categories': [category.text for category in cols[0].find_all('noindex')], | |
'price': cols[1].text.strip().split()[0], | |
'application': cols[2].text.split()[0] | |
}) | |
return projects | |
def save(projects, path): | |
with open(path, 'w') as csvfile: | |
writer = csv.writer(csvfile) | |
writer.writerow(('Проект', 'Категории', 'Цена', 'Заявки')) | |
writer.writerows( | |
(project['title'], ', '.join(project['categories']), project['price'], project['application']) for project in projects | |
) | |
def main(): | |
total_pages = get_page_count(get_html(BASE_URL)) | |
print('Всего найдено %d страниц...' % total_pages) | |
projects = [] | |
for page in range(1, total_pages + 1): | |
print('Парсинг %d%% (%d/%d)' % (page / total_pages * 100, page, total_pages)) | |
projects.extend(parse(get_html(BASE_URL + "page=%d" % page))) | |
print('Сохранение...') | |
save(projects, 'projects.csv') | |
if __name__ == '__main__': | |
main() |
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