[Python] 纯文本查看 复制代码import random

import requests

from bs4 import BeautifulSoup

import re

import math

from lxml import etree

USER_AGENTS = [

"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; AcooBrowser; .NET CLR 1.1.4322; .NET CLR 2.0.50727)",

"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Acoo Browser; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.0.04506)",

"Mozilla/4.0 (compatible; MSIE 7.0; AOL 9.5; AOLBuild 4337.35; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)",

"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 2.0.50727; Media Center PC 6.0)",

"Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 1.0.3705; .NET CLR 1.1.4322)",

"Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.2; .NET CLR 3.0.04506.30)",

"Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN) AppleWebKit/523.15 (KHTML, like Gecko, Safari/419.3) Arora/0.3 (Change: 287 c9dfb30)",

"Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.2pre) Gecko/20070215 K-Ninja/2.1.1",

"Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9) Gecko/20080705 Firefox/3.0 Kapiko/3.0",

"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11",

"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/535.20 (KHTML, like Gecko) Chrome/19.0.1036.7 Safari/535.20",

"Opera/9.80 (Macintosh; Intel Mac OS X 10.6.8; U; fr) Presto/2.9.168 Version/11.52",

]

chinese_city_district_dict = dict()

chinese_area_dict = dict()

def create_headers():

headers = dict()

headers["User-Agent"] = random.choice(USER_AGENTS)

headers["Referer"] = "http://www.ke.com"

return headers

class SecHouse(object):

def __init__(self, district, area, name, price, desc, pic):

self.district = district

self.area = area

self.price = price

self.name = name

self.desc = desc

self.pic = pic

def text(self):

return self.district + "," + \

self.area + "," + \

self.name + "," + \

self.price + "," + \

self.desc + "," + \

self.pic

def get_districts():

url = 'https://sh.ke.com/xiaoqu/'

headers = create_headers()

response = requests.get(url, timeout=10, headers=headers)

html = response.content

root = etree.HTML(html)

elements = root.xpath('///div[3]/div[1]/dl[2]/dd/div/div/a')

en_names = list()

ch_names = list()

for element in elements:

link = element.attrib['href']

en_names.append(link.split('/')[-2])

ch_names.append(element.text)

# 打印区县英文和中文名列表

for index, name in enumerate(en_names):

chinese_city_district_dict[name] = ch_names[index]

return en_names

def get_areas(district):

page = "http://sh.ke.com/xiaoqu/{0}".format(district)

areas = list()

try:

headers = create_headers()

response = requests.get(page, timeout=10, headers=headers)

html = response.content

root = etree.HTML(html)

links = root.xpath('//div[3]/div[1]/dl[2]/dd/div/div[2]/a')

# 针对a标签的list进行处理

for link in links:

relative_link = link.attrib['href']

# 去掉最后的"/"

relative_link = relative_link[:-1]

# 获取最后一节

area = relative_link.split("/")[-1]

# 去掉区县名,防止重复

if area != district:

chinese_area = link.text

chinese_area_dict[area] = chinese_area

# print(chinese_area)

areas.append(area)

return areas

except Exception as e:

print(e)

with open("sechouse.txt", "w", encoding='utf-8') as f:

# 开始获得需要的板块数据

total_page = 1

sec_house_list = list()

districts = get_districts()

for district in districts:

arealist = get_areas(district)

for area in arealist:

# 中文区县

chinese_district = chinese_city_district_dict.get(district, "")

# 中文版块

chinese_area = chinese_area_dict.get(area, "")

page = 'http://sh.ke.com/ershoufang/{0}/'.format(area)

print(page)

headers = create_headers()

response = requests.get(page, timeout=10, headers=headers)

html = response.content

soup = BeautifulSoup(html, "lxml")

# 获得总的页数

try:

page_box = soup.find_all('div', class_='page-box')[0]

matches = re.search('.*data-total-count="(\d+)".*', str(page_box))

total_page = int(math.ceil(int(matches.group(1)) / 10))

except Exception as e:

print(e)

print(total_page)

# 从第一页开始,一直遍历到最后一页

headers = create_headers()

for i in range(1, total_page + 1):

page = 'http://sh.ke.com/ershoufang/{0}/pg{1}'.format(area, i)

print(page)

response = requests.get(page, timeout=10, headers=headers)

html = response.content

soup = BeautifulSoup(html, "lxml")

# 获得有小区信息的panel

house_elements = soup.find_all('li', class_="clear")

for house_elem in house_elements:

price = house_elem.find('div', class_="totalPrice")

name = house_elem.find('div', class_='title')

desc = house_elem.find('div', class_="houseInfo")

pic = house_elem.find('a', class_="img").find('img', class_="lj-lazy")

# 继续清理数据

price = price.text.strip()

name = name.text.replace("\n", "")

desc = desc.text.replace("\n", "").strip()

pic = pic.get('data-original').strip()

# 作为对象保存

sec_house = SecHouse(chinese_district, chinese_area, name, price, desc, pic)

print(sec_house.text())

sec_house_list.append(sec_house)

for sec_house in sec_house_list:

f.write(sec_house.text() + "\n")