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SoftwareCollections.org is a community project built around Red Hat Enterprise Linux, Fedora, CentOS, and Scientific Linux that allows installing and running multiple versions of software on a single system. The available collections typically include newer versions of programming languages and services.
This tutorial will describe setting up Software Collections (SCLs) in CentOS 7 and installing Python 3.3 along side the Python 2.7 distribution default.
- CentOS 7 or Red Hat Enterprise Linux 7
Install Software Collections
The first step is to install the utilities needed to manage collections.
yum -y install scl-utils
The next step is to identify which software collection you want and to install the associated repository. A full list of available collections can be found at the following URL.
The Python33 collection repository package can be installed directly using RPM.
rpm -Uvh https://www.softwarecollections.org/en/scls/rhscl/python33/epel-7-x86_64/download/rhscl-python33-epel-7-x86_64.noarch.rpm
Install Python 3
The Python 3 collection can now be installed using YUM.
yum -y install python33
Use Python 3
Python 3.3 will become accessible by launching a new shell instance using the Software Collection
scl enable python33 bash
-V parameter will confirm the available Python version.
Additional Python libraries and tools, such as pip, can now be installed.
It is important to remember to use the appropriate path to the new Python binary in your code.