RuntimeError: '/Library/WebServer'
> is not a writable dir; you must set environment variable
> HOME to be a writable dir
> what am i doing wrong? any insight is appreciated thanks,
Python tracebacks are a little funny: you have to read them from the
end to make sense of them. In this case I'll quote the end of the
message you posted back to you
RuntimeError: '/Library/WebServer' is not a writable dir; you must
set environment variable HOME to be a writable dir
Is this not clear? If not, you need to learn a little bit about UNIX,
environment variables, and permissions. But feel free to ask
questions here along the way 
JDH