豆瓣電影分類排行

1

import
requests2#
匯入lxml使用xpath提取資料
3from lxml import
etree
4def
douban_movies(m_type,nums):
5'''
6豆瓣電影排行榜爬取
7'''
89     url = "
"+m_type+"
&interval_id=100%3a90&action=&start=0&limit=
"+nums
10     headers =
13     response = requests.get(url=url,headers=headers)
14     datas =response.json()
15for data in
datas:
16         movies_info ={}
17         movies_info ['
image
'] = data['
cover_url']
18         movies_info ['
types
'] = data['
types']
19         movies_info ['
regions
'] = data['
regions']
20         movies_info ['
title
'] = data['
title']
21         movies_info ['
url'] = data['
url'
]22         movies_info ['
release_date
'] = data['
release_date']
23         movies_info ['
score
'] = data['
score']
24         movies_info ['
actors
'] = data['
actors']
2526         with open('
./'+key_word+'
豆瓣電影分類排行榜爬取.csv
','a+
',encoding='
utf-8
')as f:
27f.writelines(str(movies_info))
2829
30def
get_type():
3132     movies_type ={}
33     url = '
'34     headers =
37     response = requests.get(url=url, headers=headers)
38     douban_html =etree.html(response.text)
39     datas = douban_html.xpath("
//div[@class='article']/div[2]/div[@class='types']/span")
4041
for href in
datas:
42         info = href.xpath("
.//@href
")[0].split('
&')[1]
43         name = href.xpath("
.//a
")[0].text
44         movies_type[name] =info45#
print(info)
4647
return
movies_type
4849
if__name__ == '
__main__':
50'''
51分析
52頁面分析一次顯示20條資訊
53json資料中的請求url顯示為： 
54type=11&interval_id=100%3a90&action=&start=0&limit=20
55type=11&interval_id=100%3a90&action=&start=20&limit=20
56type=11&interval_id=100%3a90&action=&start=40&limit=20
57start 為起始點
58limit 為顯示資訊
59type 為劇情型別
60'''
61     key_word = input('
請輸入查詢分類排行榜》')
62     nums = input('
請輸入查詢資料數量》')
63#獲取分類
64     movies_type =get_type()
65if key_word in
movies_type.keys():66#
執行爬取
67         m_type =movies_type[key_word]
68douban_movies(m_type,nums)
69pass
70else:71
print('
輸入電影分類不存在！！！
')

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