Centos7安裝python3和pip3（一）

安裝相關依賴

開始安裝

# 下載解壓
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目錄下創建python3目錄
mkdir /opt/python3
# 配置安裝目錄
cd /opt/python-3.6.8
./configure --prefix=/opt/python3
# 編譯安裝
make && make install
# 配置python3軟連接
ln -s /opt/python3/bin/python3  /usr/bin/python3
# 配置pip3軟連接
ln -s /opt/python3/bin/pip3 /usr/bin/pip3
# 升級pip
pip3 install --upgrade pip

# 查看已安裝的包
pip3 freeze
pip3 list
# 檢查哪些包需要更新
pip3 list outdated