Python 安装第三方库

Posted 2020-11-01 Arvin_JIN

cmd进入Python安装路径scripts文件夹

>pip install requests

报错：

Collecting requests
Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by \'SSLError(SSLError(1, \'[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:777)\'),)\': /simple/requests/
Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by \'SSLError(SSLError(1, \'[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:777)\'),)\': /simple/requests/
Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by \'SSLError(SSLError(1, \'[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:777)\'),)\': /simple/requests/
Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by \'SSLError(SSLError(1, \'[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:777)\'),)\': /simple/requests/
Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by \'SSLError(SSLError(1, \'[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:777)\'),)\': /simple/requests/
Could not fetch URL https://pypi.python.org/simple/requests/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host=\'pypi.python.org\', port=443): Max retries exceeded with url: /simple/requests/ (Caused by SSLError(SSLError(1, \'[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:777)\'),)) - skipping
Could not find a version that satisfies the requirement requests (from versions: )

原因：查找网上的解释是网速太慢，或被墙了。

解决办法：使用国内镜像加速。

>pip install requests -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com

问题解决。