Beautiful Soup 错误：NameError: name 'htmltext' is not defined

Question

我收到此错误：

NameError: name 'htmltext' is not defined

来源于以下代码：

from bs4 import BeautifulSoup
import urllib
import urllib.parse

url = "http://nytimes.com"

urls = [url]
visited = [url]

while len(urls) > 0:
        try:
           htmltext = urllib.urlopen(urls[0]).read()
        except:
           print(urls[0])      

        soup = BeautifulSoup(htmltext)    
        urls.pop(0)

        print(soup.findAll('a',href = true))

Answer 1

在 Python 3.x 中，您必须导入 urllib.request 而不是 urllib。然后，换行：

htmltext = urllib.urlopen(urls[0]).read()

到：

htmltext = urllib.request.urlopen(urls[0]).read()

最后，将true 更改为True。