To whom it may concern: I am very new to programming so I apologize if this question is overly simple. When I attempt to install the wrapping system for SAMtools using pysam, I receive this error message: [Errno 13] Permission denied: '/Library/Python/2.6/site-packages/test-easy-install-45999.write-test' I do not have administrative access to my computer, and I would like to know if it would be possible to specify a directory for the package to be installed in. I am working on a Mac OSX and using the Terminal shell. Thank you.