The default version of Python installed on the Courant systems was recently switched to Python-2.7.  This was causing many system problems.  As a result, the system default version of python has been reverted to Python-2.6.  Never fear however, you can still use Python-2.7 as your default.  Before using python simply run the following from a command line:

module load python-2.7

For a list of other available modules and software versions available, run:

module avail

If you have any problems, please notify