Centos installs the default python2.6 upgrade to python2.7, and solves various problems of python toolkit installation.

Idea guide: Upgrade 2.7 can not use yum to install python toolkit. Suggest using pip

yum -y update

yum groupinstall -y 'development tools'

In addition, you need to install additional packages SSL, bz2, zlib required by the python tool

yum install -y zlib-devel bzip2-devel openssl-devel xz-libs wget gcc

wget http://www.python.org/ftp/python/2.7.8/Python-2.7.8.tar.xz

tar -xvf Python-2.7.8.tar.xz

Enter the catalog:

cd Python-2.7.8

. /configure --prefix=/usr/local/

Compile and install:

make

make install

[ root@dbmasterxxx ~]# python2.7 -V

Python 2.7.8

mv /usr/bin/python /usr/bin/python2.6

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

[ root@dbmasterxxx ~]# python -V

Python 2.7.8

pip installation (pip is a tool for installing and managing Python packages, used to replace easy_install)

You cannot use yum to install the python module after upgrading to 2.7, because yum will install the module into python2.6 by default.

So use pip to install the python module. Therefore, pip needs to be installed in the new 2.7.

5.1 pip installation steps (pip uses source code installation, because yum installation will be installed to 2.6)

wget --no-check-certificate https://github.com/pypa/pip/archive/1.5.5.tar.gz

tar zvxf 1.5.5.tar.gz #Unzip the file

cd pip-1.5.5/

python setup.py install

5.2 Delete the original pip and create a 2.7 pip

rm -rf /usr/bin/pip

ln /usr/local/bin/pip /usr/bin/pip

5.3 If you cannot install pip, install the setuptools package first

wget http://pypi.python.org/packages/source/s/setuptools/setuptools-0.6c11.tar.gz

tar zxvf setuptools-0.6c11.tar.gz
cd setuptools-0.6c11
python setup.py build
python setup.py install

To install the python toolkit, you must use pip (recommended) or easy_install, because the python installed by yum will be installed in the 2.6 pit. example:

pip install DjangoCaptcha