My apologies for the delay in responding. It appears that the API documentation is no longer distributed by upstream as a distinct download, although it is available from http://twistedmatrix.com/documents/current/api/
-- twisted-doc-api is emtpy https://launchpad.net/bugs/3444 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs