python - 获取 BeautifulSoup 中表的内容

Question

我在使用 BeautifulSoup 提取的网站上有下表这是网址(我也附上了图片

理想情况下，我希望每个公司在 csv 中排成一行，但我将其排在不同的行中。请参阅所附图片。

我希望它像在“D”字段中一样，但我在 A1、A2、A3 中得到它...

这是我用来提取的代码:

def _writeInCSV(text):
    print "Writing in CSV File"
    with open('sara.csv', 'wb') as csvfile:
        #spamwriter = csv.writer(csvfile, delimiter='\t',quotechar='\n', quoting=csv.QUOTE_MINIMAL)
        spamwriter = csv.writer(csvfile, delimiter='\t',quotechar="\n")

        for item in text:
            spamwriter.writerow([item])

read_list=[]
initial_list=[]


url="http://www.nse.com.ng/Issuers-section/corporate-disclosures/corporate-actions/closure-of-register"
r=requests.get(url)
soup = BeautifulSoup(r._content, "html.parser")

#gdata_even=soup.find_all("td", {"class":"ms-rteTableEvenRow-3"})

gdata_even=soup.find_all("td", {"class":"ms-rteTable-default"})




for item in gdata_even:
    print item.text.encode("utf-8")
    initial_list.append(item.text.encode("utf-8"))
    print ""

_writeInCSV(initial_list)

有人可以帮忙吗？

Answer 1

思路是这样的:

• 阅读表格中的标题单元格
• 读取表中的所有其他行
• 压缩所有带标题的数据行单元格，生成字典列表
• 使用csv.DictWriter()转储到csv

实现:

import csv
from pprint import pprint

from bs4 import BeautifulSoup
import requests

url = "http://www.nse.com.ng/Issuers-section/corporate-disclosures/corporate-actions/closure-of-register"
soup = BeautifulSoup(requests.get(url).content, "html.parser")

rows = soup.select("table.ms-rteTable-default tr")
headers = [header.get_text(strip=True).encode("utf-8") for header in rows[0].find_all("td")]

data = [dict(zip(headers, [cell.get_text(strip=True).encode("utf-8") for cell in row.find_all("td")]))
        for row in rows[1:]]

# see what the data looks like at this point
pprint(data)

with open('sara.csv', 'wb') as csvfile:
    spamwriter = csv.DictWriter(csvfile, headers, delimiter='\t', quotechar="\n")

    for row in data:
        spamwriter.writerow(row)