# 下载解压
cd /opt
wget https://www.python.org/ftp/python/3.6.8/Python-3.6.8.tgz

tar -xvf Python-3.6.8.tgz

mv Python-3.6.8 python-3.6.8# 在local目录下创建python3目录

mkdir /opt/python3

# 配置安装目录

cd /opt/python-3.6.8

./configure --prefix=/opt/python3

# 编译安装

make && make install

# 配置python3软连接

ln -s /opt/python3/bin/python3  /usr/bin/python3

# 配置pip3软连接

ln -s /opt/python3/bin/pip3 /usr/bin/pip3

# 升级pip

pip3 install --upgrade pip

# 查看已安装的包

pip3 freeze

pip3 list

# 检查哪些包需要更新

pip3 list outdated