用Python抓取百度地图里的店名，地址和联系方式

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昨晚看到一篇爬取百度地图信息的的代码，我更改了城市，关键词，页码等，完成了获取有关“筛网”店铺的信息。
代码如下：
import requests
import re
import csv
import time
defBusinessFromBaiduDitu(citycode = '287',key_word='筛网',pageno=0):
parameter = {
"newmap": "1",
"reqflag": "pcmap",
"biz": "1",
"from": "webmap",
"da_par": "direct",
"pcevaname": "pc4.1",
"qt": "con",
"c": citycode, # 城市代码
"wd": key_word, # 搜索关键词
"wd2": "",
"pn": pageno, # 页数
"nn": pageno * 10,
"db": "0",
"sug": "0",
"addr": "0",
"da_src": "pcmappg.poi.page",
"on_gel": "1",
"src": "7",
"gr": "3",
"l": "12",
"tn": "B_NORMAL_MAP",
# "u_loc": "12621219.536556,2630747.285024",
"ie": "utf-8",
# "b": "(11845157.18,3047692.2;11922085.18,3073932.2)", #这个应该是地理位置坐标，可以忽略
"t": "1468896652886"}
headers = {
'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36(KHTML, like Gecko) Chrome/56.0.2924.87Safari/537.36'}
url = 'http://map.baidu.com/'
htm = requests.get(url, params=parameter, headers=headers)
htm = htm.text.encode('latin-1').decode('unicode_escape') # 转码
pattern = r'(?<=\baddress_norm":"\[).+?(?="ty":)'
htm = re.findall(pattern, htm) # 按段落匹配
for r in htm:
pattern = r'(?<=\b"\},"name":").+?(?=")'
name = re.findall(pattern, r)
#if not name:
pattern = r'(?<=\b,"name":").+?(?=")'
name = re.findall(pattern, r)
#print(name[0]) # 名称
pattern = r'.+?(?=")'
adr = re.findall(pattern, r)
pattern = r'\(.+?\['
address = re.sub(pattern, ' ', adr[0])
pattern = r'\(.+?\]'
address = re.sub(pattern, ' ', address)
#print(address) # 地址
pattern = r'(?<="phone":").+?(?=")'
phone = re.findall(pattern, r)
try:
if phone[0] and'",' != phone[0]:
phone_list = phone[0].split(sep=',')
for number in phone_list:
if re.match('1', number):
print(citycode+name[0]+','+address+','+number）
writer.writerow((name[0], address, number))
except:
continue
print(citycode + ' ' + key_word + ' ' + str(pageno))
现在开始写我搜“丝网”“筛网”（key_word）的代码获取想要的数据，也要改城市代码（citycode）城市代码文件链接
#citynumlist是百度地图城市代码列表
citynumlist = ['33','34','35'
'''''''''''''''''
'370','371','372']
keywordlist = ['丝网','筛网']
start = time.time()
num = 1
#建立csv文件，保存数据
csvFile = open(r'/Users/apple888/PycharmProjects/百度地图/Data/%s.csv' % 'CityData','a+', newline='', encoding='utf-8')
writer = csv.writer(csvFile)
writer.writerow(('name', 'address', 'number'))
for citycode in citynumlist:
for kw in keywordlist:
for page inrange(10):
BusinessFromBaiduDitu(citycode=citycode, key_word=kw, pageno=page)
#防止访问频率太高，避免被百度公司封
time.sleep(1)
if num%20 == 0:
time.sleep(2)
if num%100== 0:
time.sleep(3)
if num%200==0:
time.sleep(7)
num = num + 1
end = time.time()
lasttime = int((end-start))
print('耗时'+str(lasttime)+'s')
程序运行了大约三个小时，抓取了1085条有用信息信息