Question

请任何人帮助。请指出将提取的评论写到hotelreview.csv的3个单独列中时我错了，我该如何解决才能将它们写成1列？以及如何根据以下代码为其添加标题名称“评论”。我也想将新提取的数据（“评论”列）添加到现有的csv'hotel_FortWorth.csv'中。我只是将提取的信息添加到新的csv中，我不知道如何将2个文件组合在一起或以任何其他方式？网址可以重复以匹配评论。请！谢谢！

文件“ hotel_FortWorth.csv”具有3列，例如：

           Name                         link
1    Omni Fort Worth Hotel     https://www.tripadvisor.com.au/Hotel_Review-g55857-d777199-Reviews-Omni_Fort_Worth_Hotel-Fort_Worth_Texas.html
2    Hilton Garden Hotel       https://www.tripadvisor.com.au/Hotel_Review-g55857-d2533205-Reviews-Hilton_Garden_Inn_Fort_Worth_Medical_Center-Fort_Worth_Texas.html
3......
...

我使用现有csv中的网址提取评论，其代码如下所示：

import requests
from unidecode import unidecode
from bs4 import BeautifulSoup
import pandas as pd    

file = []
data = pd.read_csv('hotel_FortWorth.csv', header = None)
df = data[2]

for url in df[1:]:
    print(url)
    thepage = requests.get(url).text
    soup = BeautifulSoup(thepage, "html.parser")
    resultsoup = soup.find_all("p", {"class": "partial_entry"})
    file.extend(resultsoup)

    with open('hotelreview.csv', 'w', newline='') as fid:
    for review in file:
        review_list = review.get_text()
        fid.write(unidecode(review_list+'\n'))

预期结果：

    name          link         review
1   ...           ...         ...
2
....

Answer 1

您可以用熊猫来创建新的CSV。

例如：

import requests
from unidecode import unidecode
from bs4 import BeautifulSoup
import pandas as pd

data = pd.read_csv('hotel_FortWorth.csv')
review = []
for url in data["link"]:
    print(url)
    thepage = requests.get(url).text
    soup = BeautifulSoup(thepage, "html.parser")
    resultsoup = soup.find_all("p", {"class": "partial_entry"})
    review.append(unidecode(resultsoup))
data["review"] = review
data.to_csv('hotelreview.csv')

将提取的数据添加为现有csv-python中的新列

1 个答案: