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python – Scraping:SSL:http://en.wikipedia.org的CERTIFICATE_VERIFY_FAILED错误

作者:互联网

我正在练习’Web Scraping with Python‘的代码,我一直有这个证书问题:

from urllib.request import urlopen 
from bs4 import BeautifulSoup 
import re

pages = set()
def getLinks(pageUrl):
    global pages
    html = urlopen("http://en.wikipedia.org"+pageUrl)
    bsObj = BeautifulSoup(html)
    for link in bsObj.findAll("a", href=re.compile("^(/wiki/)")):
        if 'href' in link.attrs:
            if link.attrs['href'] not in pages:
                #We have encountered a new page
                newPage = link.attrs['href'] 
                print(newPage) 
                pages.add(newPage) 
                getLinks(newPage)
getLinks("")

错误是:

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 1319, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1049)>

顺便说一句,我也在练习scrapy,但一直都在解决问题:找不到命令:scrapy(我在网上尝试过各种解决方案,但都没有用……真的很令人沮丧)

解决方法:

曾几何时我偶然发现了这个问题.如果您正在使用macOS,请转到Macintosh HD>应用程序> Python3.6文件夹(或者你正在使用的任何python版本)>双击“Install Certificates.command”文件. :d

标签:python,beautifulsoup,ssl-certificate,web-scraping,scrapy
来源: https://codeday.me/bug/20191003/1850947.html