support for nondefault namespace; slight rewording in readme

examples/vector_databases/cassandra_astradb/Philosophical_Quotes_AstraPy.ipynb

@@ -142,13 +142,18 @@
      "output_type": "stream",
      "text": [
       "Please enter your API Endpoint: https://01234567-89ab-cdef-0123-456789abcdef-us-east1.apps.astra.datastax.com\n",
-      "Please enter your Token ········\n"
+      "Please enter your Token: ········\n",
+      "Please enter your namespace. Leave empty for default: \n"
      ]
     }
    ],
    "source": [
     "ASTRA_DB_API_ENDPOINT = input(\"Please enter your API Endpoint:\")\n",
-    "ASTRA_DB_APPLICATION_TOKEN = getpass(\"Please enter your Token\")"
+    "ASTRA_DB_APPLICATION_TOKEN = getpass(\"Please enter your Token:\")\n",
+    "\n",
+    "ASTRA_DB_KEYSPACE = input(\"Please enter your namespace. Leave empty for default:\")\n",
+    "if not ASTRA_DB_KEYSPACE:\n",
+    "    ASTRA_DB_KEYSPACE = None"
    ]
   },
   {
@@ -167,7 +172,7 @@
    "outputs": [],
    "source": [
     "astra_db_client = DataAPIClient(token=ASTRA_DB_APPLICATION_TOKEN)\n",
-    "database = astra_db_client.get_database_by_api_endpoint(ASTRA_DB_API_ENDPOINT)"
+    "database = astra_db_client.get_database_by_api_endpoint(ASTRA_DB_API_ENDPOINT, namespace=ASTRA_DB_KEYSPACE)"
    ]
   },
   {
@@ -246,18 +251,7 @@
    "execution_count": 7,
    "id": "6bf89454-9a55-4202-ab6b-ea15b2048f3d",
    "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "{'ok': 1}"
-      ]
-     },
-     "execution_count": 7,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
+   "outputs": [],
    "source": [
     "client = openai.OpenAI(api_key=OPENAI_API_KEY)\n",
     "embedding_model_name = \"text-embedding-3-small\"\n",
@@ -796,7 +790,7 @@
       "** end of logging\n",
       "\n",
       "A new generated quote:\n",
-      "- In politics, true virtue is the compass that guides a nation towards righteousness and prosperity.\n"
+      "- In politics, true virtue is the compass that guides us towards a better society.\n"
      ]
     }
    ],
@@ -830,7 +824,7 @@
       "** end of logging\n",
       "\n",
       "A new generated quote:\n",
-      "The true measure of humanity lies in our treatment of animals, for in their eyes we see reflections of our own souls.\n"
+      "The true measure of humanity lies in our treatment of animals, for compassion towards all living beings reflects our moral essence.\n"
      ]
     }
    ],

examples/vector_databases/cassandra_astradb/README.md

@@ -8,8 +8,8 @@ These example notebooks demonstrate implementation of
 the same GenAI standard RAG workload with different libraries and APIs.
 
 To use [Astra DB](https://docs.datastax.com/en/astra/home/astra.html)
-with its HTTP API interface, head to the "AstraPy" notebook (`astrapy`
-is the Python client to interact with the database).
+through its Data API interface, head to the "AstraPy" notebook (`astrapy`
+is the Python client for the Data API).
 
 If you prefer CQL access to the database (either with
 [Astra DB](https://docs.datastax.com/en/astra-serverless/docs/vector-search/overview.html)