From CDOT Wiki
→PART 1 - Installing Your Linux Distribution
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The stable version of Centos 7 - release 1161 will be chosen to be supported for this course. The purpose for this is to allow all students to use a consistent '''RedHat''' based OS, and to lower the amount of new linux distros that need to be learned by students. This should be the default choice for this course, as it allows for the course to run longer before getting outdated with new software and updates.
:Centos 7 comes with python 2.7, for this course we will be primarily using Python3. However, not practicing python 2.7 would be a mistake, since so many programs and operating systems still depend on Python2. It is recommended that students note general improvements/differences in Python2 and Python3.