问题
I have a dedicated web server which runs CentOS 6.6
I am running some script that uses Python SHA module and I think that this module is deprecated in the current Python version.
I am consider downgrading my Python installation so that I can use this module.
Is there a better option? If not, how should I do it?
These are my Python installation details:
rpm-python-4.8.0-38.el6_6.x86_64 dbus-python-0.83.0-6.1.el6.x86_64 gnome-python2-2.28.0-3.el6.x86_64 gnome-python2-canvas-2.28.0-3.el6.x86_64 libreport-python-2.0.9-21.el6.centos.x86_64 gnome-python2-applet-2.28.0-5.el6.x86_64 gnome-python2-gconf-2.28.0-3.el6.x86_64 gnome-python2-bonobo-2.28.0-3.el6.x86_64 python-urlgrabber-3.9.1-9.el6.noarch python-tools-2.6.6-52.el6.x86_64 newt-python-0.52.11-3.el6.x86_64 python-ethtool-0.6-5.el6.x86_64 python-pycurl-7.19.0-8.el6.x86_64 python-docs-2.6.6-2.el6.noarch gnome-python2-libegg-2.25.3-20.el6.x86_64 python-iwlib-0.1-1.2.el6.x86_64 libxml2-python-2.7.6-17.el6_6.1.x86_64 gnome-python2-gnome-2.28.0-3.el6.x86_64 python-iniparse-0.3.1-2.1.el6.noarch gnome-python2-libwnck-2.28.0-5.el6.x86_64 libproxy-python-0.3.0-10.el6.x86_64 python-2.6.6-52.el6.x86_64 gnome-python2-gnomevfs-2.28.0-3.el6.x86_64 gnome-python2-desktop-2.28.0-5.el6.x86_64 gnome-python2-extras-2.25.3-20.el6.x86_64 abrt-addon-python-2.0.8-26.el6.centos.x86_64 at-spi-python-1.28.1-2.el6.centos.x86_64 python-libs-2.6.6-52.el6.x86_64 python-devel-2.6.6-52.el6.x86_64
回答1:
You can always install a different version of Python using the -altinstall argument, and then run it either in a virtual environment, or just run the commands with python(version) command.
A considerable amount of CentOS is written in Python so changing the core version will most likely break some functions.
回答2:
Instead of literally downgrading, I would consider virtualenv. It lets you create isolated python environments, including the specific python version and the modules.
来源：https://stackoverflow.com/questions/31235059/how-to-downgrade-python-version-on-centos