Exit on see none existing project

project.py

@@ -172,6 +172,10 @@ def view_project_set_active(project_id, act_task_id, conn):
     cursor = conn.cursor()
     cursor.execute(query, (project_id,))
     row = cursor.fetchone()
+    if not row:
+        print('Could not find project {}'.format(project_id))
+        sys.exit(1)
+
     print('* {:d}: ({}) {} (status: {}, {} tasks)'.format(*row))
 
     # FIXME duplicate with list_task
@@ -188,6 +192,5 @@ def view_project_set_active(project_id, act_task_id, conn):
         print('   {} {:d}: ({}) [{}] [{}] {} ({} tasks)'.format('*' if act_task_id == row[0] else ' ',
             task_id, username, status, priority, message, nb_note))
     action.create_action(cursor, project_id=project_id)
-    # TODO Unset active task
 
     # TODO Add a -v option to see notes?