Installation of python3.3 in RHEL7 environment

installation of python3.3 in RHEL7 environment

Background: rhel7.3

python2.7 has been installed in the system, now to implement the Python upgrade;

Download the source tar package first

Http://www.python.org/ftp/python

Download completed to download directory, unzip

Tar XF python-3.3.0.tgz

Go to the Unpacked folder
CD Python-3.3.0

Build a folder in/usr/local before compiling Python3 (as a Python installation path to avoid overwriting the old version)
Mkdir/usr/local/python3

Install dependent packages

Yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel Libpcap-devel Xz-deve

Yum-y Install GCC gcc-c++

Start compiling the installation
./configure--prefix=/usr/local/python3
Make
Make install

The old version is not overwritten at this time, then the original/usr/bin/python link is changed to another name

Previous Python links were as follows:

Link to alias, otherwise the new version will not take effect

MV python2.7 Python2.7_old

Link to build a new version of Python
Ln-s/usr/local/python3/bin/python3/usr/bin/python2.7

The link is as follows:

Check out the Python information again

This method can be installed successfully, but it brings new problems, such as Yum not working properly.
Modify the first behavior of/usr/bin/yum:
The following designation is good:

As below, yum can be used normally

Installation of python3.3 in RHEL7 environment