I would recommend python 2.7 on all local machines
I suspect everyone is already ok?
[root@apu etc]# python2.7 -V Python 2.7.3
Instructions for python 2.7 install on windows 7, ubuntu, mac will be on another page.
Because of centos 6.3 on the cluster machines, we need both 2.6 and 2.7 to coexist there. hopefully only there.
if you install python 2.7 in any way other than the following you will destroy the system and make yum inoperable
zlib failure message may be from internal python scripts doing uncompression and they may be referring to python module files, rather than looking at links directly. Not sure.
I believe only the x86_64 zlib is needed. i.e. you don’t need 32-bit and 64-bit, but just follow these instructions. They worked on apu.0xdata.loc (192.168.1.160) on 9/28/2012
[root@apu etc]# cat /etc/redhat-release CentOS release 6.3 (Final)
stolen from Daniel Eriksson. Thanks Daniel!
Posted on 2012/06/25
CentOS 6.2 ships with Python 2.6.6 and depends on that specific version. Be careful not to replace it or bad things will happen. If you need access to a newer version of Python you must compile it yourself and install it side-by-side with the system version.
Here are the steps necessary to install Python 2.7.3. The procedure is exactly the same for installing Python 3.2.3, just make sure you use the command “python3.2 setup.py install” when you install distribute.
Execute all the commands below as root. Either log in as root temporarily or use sudo.
In order to compile Python you must first install the development tools:
yum groupinstall "Development tools"
You also need a few extra libs installed before compiling Python or else you will run into problems later when trying to install various packages:
yum install zlib-devel yum install bzip2-devel yum install openssl-devel yum install ncurses-devel
cd /opt wget http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tar.bz2 tar xf Python-2.7.3.tar.bz2 cd Python-2.7.3 ./configure --prefix=/usr/local make && make altinstall
It is important to use altinstall instead of install, otherwise you will end up with two different versions of Python in the filesystem both named python.
After running the commands above your newly installed Python 2.7.3 interpreter will be available as /usr/local/bin/python2.7 and the system version of Python 2.6.6 will be available as /usr/bin/python and /usr/bin/python2.6.
you can create a symbolic link in /usr/local/bin and things should be fine be careful here:
cd /usr/local/bin ls -ltr python* ln -s /usr/local/bin/python2.7 /usr/local/bin/python
After installing Python 2.7.3 you also need to install distribute (setuptools) so you can easily install new packages in the right location.
cd /opt wget http://pypi.python.org/packages/source/d/distribute/distribute-0.6.27.tar.gz tar xf distribute-0.6.27.tar.gz cd distribute-0.6.27 python2.7 setup.py install
The commands above will generate the script /usr/local/bin/easy_install-2.7. Use this script to install packages for your new Python version. You should be able to use “easy_install” if “which easy_install” points to the correct 2.7 versions
which easy_install ls -ltr /usr/local/bin/easy_install* easy_install-2.7 requests easy_install-2.7 psutil easy_install-2.7 paramiko (easy_install should work too, if your PATH gets /usr/local/bin first)