python2.7更新至3.6 - 小记一下_python - version is 2.7.18 - should be >=3.6.0

python源：https://www.python.org/ftp/python/

 更新至其余版本替换源路径及相应文件版本即可

  752  wget https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tgz
  753  pwd
  754  ls
  755  tar -zxvf Python-3.6.0.tgz 
  756  ls
  757  cd ./Python-3.6.0
  758  ./configure 
  759  make 
  760  make install
  761  python --version
  762  python -V
  763  python3 -V
  764  ls -al /usr/bin | grep python
  765  mv /usr/bin/python /usr/bin/python.bak
  766  ln -s /usr/local/bin/python3 /usr/bin/python
  767  python -V
  768  vi /usr/bin/yum
  769  vi /usr/libexec/urlgrabber-ext-down
  770  history

vi两步： 打开后将 #!/usr/bin/python 改为 #!/usr/bin/python2.7，保存退出即可。