Description of problem: To use the Dropbox backend, python-dropbox is needed. Either duplicity should require it, or inform the user about the package Steps to Reproduce: $ duplicity . drbx:// Actual results: Import of duplicity.backends.dpbxbackend Failed: No module named dropbox UnsupportedBackendScheme: scheme not supported in url: drbx:// Expected results: To enable Dropbox backend, install the python-dropbox package (or no error at all, requiring python-dropbox)
*** This bug has been marked as a duplicate of bug 1048656 ***