Skip init if raven is not available on the system

sentry_logger/__init__.py

@@ -26,10 +26,10 @@ import cgitb
 from openerp.tools import config
 from openerp.addons.web.controllers.main import Session
 
+try:
     from .odoo_sentry_client import OdooClient
     from .odoo_sentry_handler import OdooSentryHandler
 
-
     root_logger = logging.root
 
     processors = (
@@ -51,14 +51,14 @@ else:
         root_logger.warn(u"Sentry DSN not defined in config file")
         client = None
 
-
     # Inject sentry_activated to session to display error message or not
     old_session_info = Session.session_info
 
-
     def session_info(self, req):
         res = old_session_info(self, req)
         res['sentry_activated'] = bool(client)
         return res
 
     Session.session_info = session_info
+except ImportError:
+    pass