190617-python 网络请求之certificate verify failed问题处理

文章目录

II. 其他

在使用python的request库进行网络访问时，当url是一个https的链接，居然没法正常玩耍，直接提示

1	<urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1051)>

使用request进行图片下载，https的格式的图片，结果直接抛出来上面的异常，网上查询了一下，解决方法也比较简单，忽略掉证书校验即可

1 2	import ssl ssl._create_default_https_context = ssl._create_unverified_context

加上上面两行，然后再次测试

import os
import random
from urllib import request
import ssl
ssl._create_default_https_context = ssl._create_unverified_context


def testDownImg():
    url = 'https://www.theblockbeats.com/uploads/course/20190617/1560740686526583.jpg'

    def tmp_save(url, app=None):
        path = f"/tmp/img/{app}/"

        if not os.path.exists(path):
            # 当目录不存在时，主动创建
            os.makedirs(path)

        try:
            opener = request.build_opener()
            opener.addheaders = [('user-agent',
                                  'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36')]
            request.install_opener(opener)

            file = f"{path}/01_{random.randint(0, 20)}"
            request.urlretrieve(url, file)
            return file
        except Exception as e:
            print(e)
            return None

    ans = tmp_save(url, app='test')
    print(ans)


testDownImg()