在centos7.6系統(tǒng)下執(zhí)行pip 安裝軟件時會出現(xiàn)如圖提示，python 2.7將在2020年1月1日停止維護，如何升級python版本呢？本教程升級為python 3.7

1.輸入yum install libffi-devel zlib zlib-devel gcc openssl openssl-devel wget -y，按回車鍵安裝編譯環(huán)境包

2.輸入wget https://www.python.org/ftp/python/3.7.6/Python-3.7.6.

tar.xz，按回車鍵下載Python3.7源碼包

3.輸入tar -xvf Python-3.7.6.tar.xz按回車鍵解壓

4.輸入cd Python-3.7.6按回車鍵進入該目錄

5.輸入./configure --prefix=/usr/local/python3.7按回車鍵配置安裝目錄

6.輸入make && make install按回車鍵開始安裝

7.輸入cp /usr/bin/python /usr/bin/python_old按回車鍵

8.輸入rm -rf /usr/bin/python按回車鍵

9.輸入ln -s /usr/local/python3.7/bin/python3.7 /usr/bin/python按回車鍵

10.輸入python --version按回車鍵查看版本

11.輸入sed -i 's/python/python_old/g' /usr/bin/yum按回車鍵

12.輸入sed -i 's/python/python_old/g' /usr/libexec/urlgrabber-ext-down按回車鍵

13.輸入echo 'export PATH=$PATH:/usr/local/python3.7/bin/' >>/etc/profile按回車鍵

14.輸入source /etc/profile按回車鍵

15.此時執(zhí)行pip3可以正常安裝軟件了