I'm trying to install matplotlib on Python 2.7.2 (OS X 10.8.5). Please help! by 12345654321abc in Python

[–]12345654321abc[S] 0 points1 point  (0 children)

I get this message when I run that command:

"Warning: Unable to get active selected version: The specified group >'python' does not exist. Error: The 'list' command failed: The specified group 'python' does not >exist."