centos6.3 installation python2.7, pip2.7, MySQL

Reference:

https://github.com/h2oai/h2o-2/wiki/ Installing-python-2.7-on-centos-6.3.-follow-this-sequence-exactly-for-centos-machine-only

http://toomuchdata.com/2012/06/25/how-to-install-python-2-7-3-on-centos-6-2/

Background:

In the production environment is CentOS 6.3, the system default python2.6, without changing the system default, want to install additional python2.7.

All steps are reproduced in the reference article, which is used only as a note.

Installing Python2.7

Steps:

1. Configure Yum Domestic source

cd/etc/Yumrepos.dmv /etc/yum. repos.d/centos-base.repo/etc/Yum. repos.d/centos-Base.repo.backupwget http://mirrors.163.com/.help/ Centos6-base-163.repomv centos6-base-163. Repo centos6-Base.repoYum  Clean allyum Makecache

2. Configure python2.7 source installation and compilation environment

Yum " Development Tools " Yum Install zlib-develyuminstallbzip2-develYum Install openssl-develyuminstall ncurses-develYum  Install sqlite-devel

3. Download and compile the installation python2.7

CD/optwget --no-check-certificate https://www.python.org/ftp/python/2.7.11/ Python-2.7.11.tar.xztar XF python-2.7. one by one. Tar . XZCD Python-2.7.  One . /configure--prefix=/usr/Local make make Altinstall

Note that it is make altinstall instead of make install

After the installation is complete,/usr/bin/python and/usr/local/bin/python should be as follows

[Email protected]:/opt/python-2.7. One]ls-ltr/usr/bin/python*
lrwxrwxrwx1Root root6Nov -  2002/usr/bin/python2python-rwxr-xr-x1Root root1418JulTen   -/usr/bin/python2.6-Config-rwxr-xr-x2Root root4864JulTen   -/usr/bin/python2.6-rwxr-xr-x2Root root4864JulTen   -/usr/bin/pythonlrwxrwxrwx1Root root -Oct -  the: the/usr/bin/python-config, Python2.6-Config[email protected]:/opt/python-2.7. One]ls-ltr/usr/local/bin/python*-rwxr-xr-x1Root root6214533Mar +  A: $/usr/local/bin/python2.7-rwxr-xr-x1Root root1674Mar +  A: $/usr/local/bin/python2.7-config

4. Check $path,/usr/local/bin's position should be before/usr/bin

Echo $PATH/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

5. Create a soft link to link the/usr/local/bin/python2.7 to the/usr/local/bin/python

Ln -s/usr/local/bin/python2. 7 /usr/local/bin/python

6. Disconnect ssh, re-ssh to the server, Python is default to 2.7.11, Yum can be used normally

Install PIP, virtualenv

1. Install Pip 8.1.2

Since all environments are configured in Virtualenv, Pip is not modified, if the default Pip is version 2.6, a soft link to/usr/local/bin/pip can be created

wget https://bootstrap.pypa.io/get-pip.pypython get-pip.py

2. Installing virtualenv

Install virtualenv

Install MySQL

1. Install the MySQL client and server

Yum Install MySQL Yum Install mysql-serveryuminstall mysql-devel

2. Configure MySQL default charset

Add Default-character-set=utf8 in/ETC/MY.CNF

3. Start the MySQL service and set the boot up

-Add Mysqldchkconfig mysqld on

4. Create a MySQL root user

123456

centos6.3 installation python2.7, pip2.7, MySQL