linux服务器升级python（python2和python3共存）

先安装sqlite-devel，

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yum -y install sqlite-devel 
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mkdir /usr/local/python3
cd /usr/local/
wget https://www.python.org/ftp/python/3.10.4/Python-3.10.4.tar.xz
tar -xvJf Python-3.10.4.tar.xz
cd Python-3.10.4
./configure prefix=/usr/local/python3

在Python-3.10.4目录下执行下面的命令(下载pip等插件的命令)
下载和编译安装

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make && make install

建立软连接

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ln -fs /usr/local/python3/bin/python3 /usr/bin/python3
ln -fs /usr/local/python3/bin/pip3 /usr/bin/pip3

linux下更新pip

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pip install --upgrade pip
pip3 install --upgrade pip
sudo pip3 install --upgrade pip