diff --git a/docs/tutorial/PyMISP_tutorial.ipynb b/docs/tutorial/PyMISP_tutorial.ipynb
index af84d24..7fc32a1 100644
--- a/docs/tutorial/PyMISP_tutorial.ipynb
+++ b/docs/tutorial/PyMISP_tutorial.ipynb
@@ -17,7 +17,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": null,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -32,7 +32,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": null,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -57,17 +57,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Event id: 16\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "event = misp.new_event(distribution=1,\n",
     "               threat_level_id=1,\n",
@@ -85,17 +77,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Event id: 17\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "from pymisp import MISPEvent\n",
     "\n",
@@ -118,17 +102,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "{'Event': {'attribute_count': '1', 'published': False, 'orgc_id': '1', 'disable_correlation': False, 'id': '17', 'Orgc': {'uuid': '5aa4dd31-42e0-4ebb-a65f-776c88efcce7', 'id': '1', 'name': 'ORGNAME'}, 'ShadowAttribute': [], 'threat_level_id': '1', 'info': 'Event from notebook 2', 'analysis': '1', 'date': '2018-03-28', 'org_id': '1', 'publish_timestamp': '0', 'uuid': '5abb3fc8-8b04-4f1f-9454-0eba0a00020f', 'Org': {'uuid': '5aa4dd31-42e0-4ebb-a65f-776c88efcce7', 'id': '1', 'name': 'ORGNAME'}, 'sharing_group_id': '0', 'distribution': '1', 'Attribute': [{'ShadowAttribute': [], 'uuid': '5abb4064-23e8-4087-83ed-0cba0a00020f', 'category': 'Network activity', 'event_id': '17', 'deleted': False, 'disable_correlation': False, 'id': '4928', 'sharing_group_id': '0', 'object_id': '0', 'distribution': '5', 'type': 'ip-src', 'to_ids': False, 'timestamp': '1522221156', 'value': '8.8.8.8', 'comment': '', 'object_relation': None}], 'proposal_email_lock': False, 'locked': False, 'RelatedEvent': [{'Event': {'published': False, 'uuid': '5aa8b0e7-7424-4747-8592-17acc0a83865', 'Org': {'uuid': '5aa4dd31-42e0-4ebb-a65f-776c88efcce7', 'id': '1', 'name': 'ORGNAME'}, 'analysis': '1', 'distribution': '1', 'Orgc': {'uuid': '5aa4dd31-42e0-4ebb-a65f-776c88efcce7', 'id': '1', 'name': 'ORGNAME'}, 'orgc_id': '1', 'threat_level_id': '1', 'id': '9', 'info': 'Event from notebook 2', 'date': '2018-03-14', 'org_id': '1', 'timestamp': '1522058405'}}, {'Event': {'published': False, 'uuid': '5aa63a59-25a4-4cf9-bd93-024dc0a83865', 'Org': {'uuid': '5aa4dd31-42e0-4ebb-a65f-776c88efcce7', 'id': '1', 'name': 'ORGNAME'}, 'analysis': '0', 'distribution': '0', 'Orgc': {'uuid': '5aa4dd31-42e0-4ebb-a65f-776c88efcce7', 'id': '1', 'name': 'ORGNAME'}, 'orgc_id': '1', 'threat_level_id': '3', 'id': '1', 'info': 'Test event', 'date': '2018-03-12', 'org_id': '1', 'timestamp': '1520991310'}}], 'timestamp': '1522221156', 'event_creator_email': 'admin@admin.test', 'Galaxy': [], 'Object': []}}\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "# Fetch by ID\n",
     "event = misp.get_event(event_id)\n",
@@ -151,17 +127,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "[{'errors': {'value': ['A similar attribute already exists for this event.']}, 'message': 'Could not add Attribute', 'url': '/attributes/add', 'name': 'Could not add Attribute'}]\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "attr_type = \"ip-src\"\n",
     "value = \"8.8.8.8\"\n",
@@ -186,17 +154,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "<MISPAttribute(type=ip-src, value=8.8.8.8)\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "from pymisp import MISPAttribute\n",
     "\n",
@@ -211,17 +171,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 12,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "<MISPAttribute(type=ip-dst, value=127.0.0.1)\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "# An attribute can also be loaded directly from a JSON\n",
     "json = '''{\n",
@@ -246,19 +198,11 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 16,
+   "execution_count": null,
    "metadata": {
     "scrolled": false
    },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "{'Event': {'attribute_count': '2', 'published': False, 'orgc_id': '1', 'disable_correlation': False, 'id': '17', 'Orgc': {'uuid': '5aa4dd31-42e0-4ebb-a65f-776c88efcce7', 'id': '1', 'name': 'ORGNAME'}, 'ShadowAttribute': [], 'threat_level_id': '1', 'info': 'Event from notebook 2', 'analysis': '1', 'date': '2018-03-28', 'org_id': '1', 'publish_timestamp': '0', 'uuid': '5abb3fc8-8b04-4f1f-9454-0eba0a00020f', 'Org': {'uuid': '5aa4dd31-42e0-4ebb-a65f-776c88efcce7', 'id': '1', 'name': 'ORGNAME'}, 'sharing_group_id': '0', 'distribution': '1', 'Attribute': [{'ShadowAttribute': [], 'uuid': '5abb4064-23e8-4087-83ed-0cba0a00020f', 'category': 'Network activity', 'event_id': '17', 'deleted': False, 'disable_correlation': False, 'id': '4928', 'sharing_group_id': '0', 'object_id': '0', 'distribution': '5', 'type': 'ip-src', 'to_ids': False, 'timestamp': '1522221156', 'value': '8.8.8.8', 'comment': '', 'object_relation': None}, {'ShadowAttribute': [], 'uuid': '5abb4266-5ba0-4ab9-a2ab-0f360a00020f', 'category': 'Network activity', 'event_id': '17', 'deleted': False, 'disable_correlation': False, 'id': '4929', 'sharing_group_id': '0', 'object_id': '0', 'distribution': '0', 'type': 'ip-dst', 'to_ids': False, 'timestamp': '1522221670', 'value': '127.0.0.1', 'comment': '', 'object_relation': None}], 'proposal_email_lock': False, 'locked': False, 'RelatedEvent': [{'Event': {'published': False, 'uuid': '5aa8b0e7-7424-4747-8592-17acc0a83865', 'Org': {'uuid': '5aa4dd31-42e0-4ebb-a65f-776c88efcce7', 'id': '1', 'name': 'ORGNAME'}, 'analysis': '1', 'distribution': '1', 'Orgc': {'uuid': '5aa4dd31-42e0-4ebb-a65f-776c88efcce7', 'id': '1', 'name': 'ORGNAME'}, 'orgc_id': '1', 'threat_level_id': '1', 'id': '9', 'info': 'Event from notebook 2', 'date': '2018-03-14', 'org_id': '1', 'timestamp': '1522058405'}}, {'Event': {'published': False, 'uuid': '5aa63a59-25a4-4cf9-bd93-024dc0a83865', 'Org': {'uuid': '5aa4dd31-42e0-4ebb-a65f-776c88efcce7', 'id': '1', 'name': 'ORGNAME'}, 'analysis': '0', 'distribution': '0', 'Orgc': {'uuid': '5aa4dd31-42e0-4ebb-a65f-776c88efcce7', 'id': '1', 'name': 'ORGNAME'}, 'orgc_id': '1', 'threat_level_id': '3', 'id': '1', 'info': 'Test event', 'date': '2018-03-12', 'org_id': '1', 'timestamp': '1520991310'}}], 'timestamp': '1522221685', 'event_creator_email': 'admin@admin.test', 'Galaxy': [], 'Object': []}}\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "# Add the attribute to the event\n",
     "## Fetch the event from MISP\n",
@@ -295,21 +239,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 17,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "17 : Event from notebook 2\n",
-      "16 : Event from notebook\n",
-      "9 : Event from notebook 2\n",
-      "8 : Event from notebook 2\n",
-      "7 : Event from notebook\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "results = misp.search_index(eventinfo='notebook')\n",
     "# The data is stored in the field 'response'\n",
@@ -335,19 +267,11 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 22,
+   "execution_count": null,
    "metadata": {
     "scrolled": true
    },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Event from notebook 2\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "# Search attributes (specified in controller) where the attribute type is 'ip-src'\n",
     "# And the to_ids flag is set\n",
@@ -376,17 +300,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 24,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "{'Attribute': [{'uuid': '5abb4316-22a0-446a-a89e-0f260a00020f', 'category': 'Payload delivery', 'event_id': '17', 'distribution': '5', 'value1': 'admin@admin.test', 'disable_correlation': False, 'id': '4933', 'sharing_group_id': '0', 'comment': '', 'deleted': False, 'type': 'email-src', 'to_ids': True, 'timestamp': '1522221846', 'value2': '', 'value': 'admin@admin.test', 'object_id': '1094', 'object_relation': 'from'}, {'uuid': '5abb4316-6594-4ee5-a355-0f260a00020f', 'category': 'Payload delivery', 'event_id': '17', 'distribution': '5', 'value1': 'An email', 'disable_correlation': False, 'id': '4934', 'sharing_group_id': '0', 'comment': '', 'deleted': False, 'type': 'email-subject', 'to_ids': False, 'timestamp': '1522221846', 'value2': '', 'value': 'An email', 'object_id': '1094', 'object_relation': 'subject'}, {'uuid': '5abb4316-80b8-4689-a4e8-0f260a00020f', 'category': 'Network activity', 'event_id': '17', 'distribution': '5', 'value1': 'admin@foo.bar', 'disable_correlation': False, 'id': '4935', 'sharing_group_id': '0', 'comment': '', 'deleted': False, 'type': 'email-dst', 'to_ids': True, 'timestamp': '1522221846', 'value2': '', 'value': 'admin@foo.bar', 'object_id': '1094', 'object_relation': 'to'}], 'Object': {'description': 'Email object describing an email with meta-information', 'template_uuid': 'a0c666e0-fc65-4be8-b48f-3423d788b552', 'event_id': '17', 'distribution': '5', 'template_version': '8', 'name': 'email', 'uuid': '5fabdfaa-3520-4424-987a-2e247797c473', 'id': '1094', 'deleted': False, 'timestamp': '1522221846', 'meta-category': 'network', 'comment': '', 'sharing_group_id': '0'}}\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "from pymisp import MISPObject\n",
     "\n",