Fixed lint errors

printer_tray/__manifest__.py

@@ -34,7 +34,9 @@
      'report_xml_action_view.xml',
      'security/ir.model.access.csv',
      ],
- 'test': [],
+ 'external_dependencies': {
+     'python': ['cups'],
+ },
  'installable': False,
  'auto_install': False,
  'application': True,

printer_tray/printer.py

@@ -18,12 +18,20 @@
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 ##############################################################################
-import cups
+
 import errno
+import logging
 import os
 
 from openerp import models, fields, api
 
+_logger = logging.getLogger(__name__)
+
+try:
+    import cups
+except ImportError:
+    _logger.debug('Cannot `import cups`.')
+
 
 class Printer(models.Model):
     _inherit = 'printing.printer'

printer_tray/users_view.xml

@@ -15,7 +15,7 @@
     </record>
 
     <!-- res.users form view (My preferences popup) -->
-    <record model="ir.ui.view" id="view_users_form">
+    <record model="ir.ui.view" id="view_users_prefs">
       <field name="name">res.users.form.printing.tray</field>
       <field name="model">res.users</field>
       <field name="inherit_id" ref="base_report_to_printer.view_users_form_simple_modif" />