我正在嘗試從電子商務(wù)網(wǎng)站上抓取一些數(shù)據(jù)用于個(gè)人項(xiàng)目。我正在嘗試從 html 構(gòu)建一個(gè)嵌套的字符串列表，但 html 的一部分出現(xiàn)問(wèn)題。每個(gè)列表項(xiàng)如下所示：<div class="impressions" data-impressions=\'{"id":"01920","name":"Sleepy","price":12.95,"brand":"Lush","category":"Bubble Bar","variant":"7 oz.","quantity":1,"list":"/bath/bubble-bars/sleepy/9999901920.html","dimension11":"","dimension12":"Naked,Self Preserving,Vegan","dimension13":1,"dimension14":1,"dimension15":true}\'></div>我現(xiàn)在擁有的是一個(gè)正則表達(dá)式，它可以將 data-impressions 標(biāo)簽中的所有項(xiàng)目像這樣轉(zhuǎn)換并在逗號(hào)處分割它們：list_return = [re.findall('\{([^{]+[^}\'></div>])', i) for i in bathshower_impressions]list_return = [re.split(',', list_return[i][0]) for i in range(0, len(list_return))]這為我提供了每個(gè)事物的列表列表，這些列表將成為字典中的鍵：值對(duì)。對(duì)于上面的示例，第二級(jí)項(xiàng)目如下：[['"id"', '"01920"'], ['"name"', '"Sleepy"'], ['"price"', '12.95'], ['"brand"', '"Lush"'], ['"category"', '"Bubble Bar"'], ['"variant"', '"7 oz."'], ['"quantity"', '1'], ['"list"', '"/bath/bubble-bars/sleepy/9999901920.html"'], ['"dimension11"', '""'], ['"dimension12"', '"Naked'], ['Self Preserving'], ['Vegan"'], ['"dimension13"', '1'], ['"dimension14"', '1'], ['"dimension15"', 'true']]我的問(wèn)題是維度 12，我不知道如何排除該維度以逗號(hào)分隔，以便該列表顯示為：['"dimension12"', '"Naked,Self Preserving,Vegan"']如有任何幫助，我們將不勝感激，謝謝。
1 回答
繁花如伊
TA貢獻(xiàn)2012條經(jīng)驗(yàn) 獲得超12個(gè)贊
我想建議一種不同的方法。該屬性值看起來(lái)像JSON，那么為什么不使用json模塊呢？這樣，您就有了一個(gè)現(xiàn)成的數(shù)據(jù)結(jié)構(gòu)，可以進(jìn)一步修改。
import json
from bs4 import BeautifulSoup
html_list = [
"""<div class="impressions" data-impressions=\'{"id":"01920","name":"Sleepy","price":12.95,"brand":"Lush","category":"Bubble Bar","variant":"7 oz.","quantity":1,"list":"/bath/bubble-bars/sleepy/9999901920.html","dimension11":"","dimension12":"Naked,Self Preserving,Vegan","dimension13":1,"dimension14":1,"dimension15":true}\'></div>""",
]
data_structures = []
for html_item in html_list:
soup = BeautifulSoup(html_item, "html.parser").find("div", {"class": "impressions"})
data_structures.append(json.loads(soup["data-impressions"]))
print(data_structures)
這會(huì)輸出一個(gè)字典列表：
[{'id': '01920', 'name': 'Sleepy', 'price': 12.95, 'brand': 'Lush', 'category': 'Bubble Bar', 'variant': '7 oz.', 'quantity': 1, 'list': '/bath/bubble-bars/sleepy/9999901920.html', 'dimension11': '', 'dimension12': 'Naked,Self Preserving,Vegan', 'dimension13': 1, 'dimension14': 1, 'dimension15': True}]
要訪(fǎng)問(wèn)所需的密鑰，只需執(zhí)行以下操作：
for data_item in data_structures:
print(data_item["dimension12"])
印刷：Naked,Self Preserving,Vegan
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