libpaste
Python Paste was already taken, so I went with libpaste (only 3 hits on Google as of this writing). Basically you give the module a url and if it's a known pastebin, it'll return the raw data using whatever means necessary.
So far that means simply picking the right raw url but additional parsing could be performed (such as stripping line numbers or formatting).
Downloads
libpaste-0.1.tar.gz or browse the distribution directory.
Latest devel verison is accessible via git clone http://timhatch.com/projects/libpaste/libpaste.git
Contributing
I welcome patches, suggestions, and bugreports. Send me an email to code@timhatch.com