By setting a DefaultImportXXX preferences parameter under Mod/Start,
one can specify a default import module to use when clicking a .XXX
file on the Start page. This is specially useful for filetypes that
have several importers, and the Start page would not let users
choose which importer to use.
Later on if this proves useful we can set up an UI to let the user
set their preferences better.
Using the results of the vulnerability scan at lgtm.com, some minor
changes were made. First, all Python exception handling now explicitly
catches Exception, rather than BaseException (which would include SystemExit
and KeyboardInterrupt). Second, unused imports were removed. Third, a
couple of unnecessary or unused assignments were addressed. Finally, the
JavaScript was modified to explicitly declare the local ddiv variable when
needed.
