Python: Fix AI Search Environment Variables (#9160)

### Motivation and Context

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Updating the AI Search environment variables to follow convention and
match the code as it was throwing an error and unable to connect to the
service as it was. It also loads in the environment properly using the
dotenv package.

### Description

<!-- Describe your changes, the overall approach, the underlying design.
These notes will help understanding how your code works. Thanks! -->

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [X] The code builds clean without any errors or warnings
- [X] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [X] All unit tests pass, and I have added new tests where possible
- [X] I didn't break anyone 😄

---------

Co-authored-by: Evan Mattson <[email protected]>

python/.env.example

@@ -9,10 +9,10 @@ AZURE_OPENAI_EMBEDDING_DEPLOYMENT_NAME=""
 AZURE_OPENAI_ENDPOINT=""
 AZURE_OPENAI_API_KEY=""
 AZURE_OPENAI_API_VERSION=""
-AZURE_AISEARCH_URL=""
-AZURE_AISEARCH_SERVICE=""
-AZURE_AISEARCH_API_KEY=""
-AZURE_AISEARCH_INDEX_NAME=""
+AZURE_AI_SEARCH_ENDPOINT=""
+AZURE_AI_SEARCH_SERVICE=""
+AZURE_AI_SEARCH_API_KEY=""
+AZURE_AI_SEARCH_INDEX_NAME=""
 MONGODB_ATLAS_CONNECTION_STRING=""
 PINECONE_API_KEY=""
 PINECONE_ENVIRONMENT=""

python/samples/getting_started/.env.example

@@ -9,5 +9,5 @@ AZURE_OPENAI_TEXT_DEPLOYMENT_NAME=""
 AZURE_OPENAI_EMBEDDING_DEPLOYMENT_NAME=""
 AZURE_OPENAI_ENDPOINT=""
 AZURE_OPENAI_API_KEY=""
-AZURE_AISEARCH_API_KEY=""
-AZURE_AISEARCH_URL=""
+AZURE_AI_SEARCH_API_KEY=""
+AZURE_AI_SEARCH_ENDPOINT=""

python/samples/getting_started/06-memory-and-embeddings.ipynb

@@ -525,17 +525,6 @@
     "_Please note you will need an AzureAI Search api_key or token credential and endpoint for the following example to work properly._"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "4eb9e2bc",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "api_key = os.getenv(\"AZURE_AI_SEARCH_API_KEY\")\n",
-    "endpoint = os.getenv(\"AZURE_AI_SEARCH_ENDPOINT\")"
-   ]
-  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -545,7 +534,7 @@
    "source": [
     "from semantic_kernel.connectors.memory.azure_cognitive_search import AzureCognitiveSearchMemoryStore\n",
     "\n",
-    "acs_memory_store = AzureCognitiveSearchMemoryStore(vector_size=1536, admin_key=api_key, search_endpoint=endpoint)\n",
+    "acs_memory_store = AzureCognitiveSearchMemoryStore(vector_size=1536)\n",
     "\n",
     "memory = SemanticTextMemory(storage=acs_memory_store, embeddings_generator=embedding_gen)\n",
     "kernel.add_plugin(TextMemoryPlugin(memory), \"TextMemoryPluginACS\")"
@@ -598,7 +587,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -612,7 +601,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.12"
+   "version": "3.12.5"
   }
  },
  "nbformat": 4,

python/samples/getting_started/third_party/.env.example

@@ -9,8 +9,8 @@ AZURE_OPENAI_TEXT_DEPLOYMENT_NAME=""
 AZURE_OPENAI_EMBEDDING_DEPLOYMENT_NAME=""
 AZURE_OPENAI_ENDPOINT=""
 AZURE_OPENAI_API_KEY=""
-AZURE_AISEARCH_API_KEY=""
-AZURE_AISEARCH_URL=""
+AZURE_AI_SEARCH_API_KEY=""
+AZURE_AI_SEARCH_ENDPOINT=""
 
 # -- WEAVIATE SETTINGS --
 

python/samples/learn_resources/.env.example

@@ -8,5 +8,5 @@ AZURE_OPENAI_TEXT_DEPLOYMENT_NAME=""
 AZURE_OPENAI_EMBEDDING_DEPLOYMENT_NAME=""
 AZURE_OPENAI_ENDPOINT=""
 AZURE_OPENAI_API_KEY=""
-AZURE_AISEARCH_API_KEY=""
-AZURE_AISEARCH_URL=""
+AZURE_AI_SEARCH_API_KEY=""
+AZURE_AI_SEARCH_ENDPOINT=""