CentOS6.5 install Python3

Install Environment yuminstallgccyuminstallzlib-develyuminstallmake download python version wgethttp: // www.python.org/ftp/python/3.4.0/Python-3.4.0.tgz

1. Installation environment
   Yum install gcc
   Yum install zlib-devel
   Yum install make

2. Download python
   Wget http://www.python.org/ftp/python/3.4.0/Python-3.4.0.tgz

3. Decompress, compile, and install
   Tar-zxvf Python-3.4.0.tgz
   Cd Python-3.4.0
   ./Configure-prefix =/opt/python3
   Make all
   Make install
   Clear the previously compiled executable files and configuration files.
   Make clean
   Clear all generated files
   Make distclean

4. View installed new version information
   /Opt/python3/bin/python3-V
   Python 3.4.0
   The new version of python compilation and installation takes effect.

5. Make a soft connection to the bin directory of the current user
   Ln-s/opt/python3/bin/python3 ~ /Bin/python3

6. After the new python version is upgraded and installed, the default value is still python2.6.
   #! /Usr/bin/python #! /Opt/python3/bin/python3.