你好老师，系统centos系统，按你的安装方式，目录/usr/local/bin/下有这个pip3的命令，但是使用它的话会报错：
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host=‘pypi.org’, port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError(“Can’t connect to HTTPS URL because the SSL module is not available.”,)) - skipping

请问怎么解决？