python从带有AttributeError的url解析html：'bytes'对象没有属性'find_all'

Question

我想将 html 表从 ur 解析为 csv，但在代码中出现错误：page.find_all('tr'):

AttributeError: 'bytes' 对象没有属性 'find_all'

import urllib
import os
import csv

cwd = os.getcwd()
myFolder=cwd+"\In"
url="http://biznes.pap.pl/pl/reports/espi/all,0,0,0,1"
page = urllib.request.urlopen(url).read()

with open('listing.csv', 'w') as f:
   writer = csv.writer(f)
    for tr in page.find_all('tr'):
     tds = tr.find_all('td')
     row = [str(elem.text.encode('utf-8'))[1:] for elem in tds[:12]]
     writer.writerow(row)

print("Creating listing.csv file... ") 
print("Done... ") 

我认为这个网址中有其他内容。

感谢您的帮助

Answer 1

从 API 使用情况来看，您似乎打算初始化 BeautifulSoup 对象：

from bs4 import BeautifulSoup

# ...

soup = BeautifulSoup(page, "html.parser")

with open('listing.csv', 'w') as f:
    writer = csv.writer(f)

    for tr in soup.find_all('tr'):
        tds = tr.find_all('td')
        row = [str(elem.text.encode('utf-8'))[1:] for elem in tds[:12]]

        writer.writerow(row)

Answer 2

您可能需要一个解析器，即BeautifulSoup:

from bs4 import BeautifulSoup

然后

page = urllib.request.urlopen(url).read()

来了

soup = BeautifulSoup(page, 'html5lib')

和

with open('listing.csv', 'w') as f:
    writer = csv.writer(f)
    for tr in soup.find_all('tr'):
    # --------^^^^---------------