[FIX] import error if report_xls is not available

account_move_line_report_xls/__init__.py

@@ -20,5 +20,10 @@
 #
 ##############################################################################
 
-from . import account_move_line
-from . import report
+try:
+    from . import account_move_line
+    from . import report
+except ImportError:
+    import logging
+    logging.getLogger('openerp.module').warning('report_xls not available in addons path. account_financial_report_webkit_xls will not be usable')
+