DEBUG:mediagoblin.gmg_commands.dbupdate:No models found for mediagoblin.media_types.pdf: No module named dateutil.parser

After manual pip install python-dateutil all works, but still why it was removed?

Sometimes the database structures need to be generated using “./bin/gmg dbupdate”.

E.g. when there is no database yet, this is necessary for GMG to start. When you add media types, it is necessary to be able to store the media of those types (GMG transcoded a video clip but failed to store it).

I wonder if it's possible to do something like this:

  class BlaBlaForm(pluginapi.HookForm):
    _hook_name = 'blabla'
    bla_bla = wtforms.BlaBlaField()

This would require some fancy metaclassing but if it worked, it should be able to allow to attach fields to the form either before or after like the following:

  pluginapi.add_form_field(
     wtforms.SomeFormField(),
     position=before)

Is this possible? Not totally sure. Would be great if it did. Would also involve evil metaclassing. But what part of plugin systems don't involve a bit of evil ;)