ERROR: Could not find a version that satisfies the requirement matplotlib (from versions: none)

今天在Ubuntu中的pycharm软件安装matplotlib模块时出现，如下问题，提示pip版本不符合，需要更新
ERROR: Could not find a version that satisfies the requirement matplotlib (from versions: none)
ERROR: No matching distribution found for matplotlib
使用如下命令，更新pip版本，并没有成功

python -m pip install --upgrade pip

提示如下的问题，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

又在网上找到一种方法：
更改为国内的镜像源：（xxx为安装的包）

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

pip3 install -i https://pypi.tuna.tsinghua.edu.cn/simple xxx

然而还是没有用~

虽然不行，但是提醒我通过/usr/local/python3.10.0/bin/python3.10 -m pip install –upgrade pip，对pip进行更新，我开始尝试，结果还是失败了

问题又开始回去了，又是提醒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
于是我想了想，把两种方法综合一下，结果成功解决了

/usr/local/python3.10.0/bin/python3.10 -m pip install --upgrade pip -i http://pypi.douban.com/simple --trusted-host pypi.douban.com

最近一直在网上找方法，一直没能解决，今天解决了，记录下来，希望能帮助到其他朋友~

python安装pip install报错Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirm