Python: Add load_dotenv() to samples for .env file support (#4043)

* Initial plan

* Add load_dotenv() to 303 Python samples for environment variable loading

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Update SAMPLE_GUIDELINES.md to document load_dotenv() requirement

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Update samples README.md to document .env file usage

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Run ruff format on all changed sample files

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Clarify load_dotenv() usage in README - local dev vs production

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Remove deprecated getting_started folder as requested

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Document env_file_path parameter for per-client configuration

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Merge main branch to resolve conflicts

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Fix run_evaluation.py file that was empty in merge commit

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Remove dotnet changes from merge - out of scope for this PR

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Remove package and test changes from merge - only sample changes needed

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Remove test_func_utils.py - only sample changes needed

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Revert sample files not in original changeset - keep only load_dotenv additions

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Move load_dotenv() outside snippet tag in 06_host_your_agent.py

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Fix comment placement - move load_dotenv before code comments

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Fix load_dotenv() placement across all samples - after docstring, before code comments

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Merge latest main branch with load_dotenv changes

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Remove non-sample changes from merge - keep only load_dotenv additions

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Revert non-load_dotenv sample changes from merge

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Fix run_evaluation.py - use main's improved version (file already had load_dotenv)

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Manual update

* Manual update 2

* Fix Role usage and load_dotenv placement per PR review feedback

Co-authored-by: eavanvalkenburg <13749212+eavanvalkenburg@users.noreply.github.com>

* Fix Role usage - use string literals not enum attributes

Co-authored-by: eavanvalkenburg <13749212+eavanvalkenburg@users.noreply.github.com>

* Fix SAMPLE_GUIDELINES.md example - load_dotenv before docstring per guidance

Co-authored-by: eavanvalkenburg <13749212+eavanvalkenburg@users.noreply.github.com>

* Move load_dotenv() before docstrings in all samples per SAMPLE_GUIDELINES ordering

Co-authored-by: eavanvalkenburg <13749212+eavanvalkenburg@users.noreply.github.com>

* Address PR review: rename files, fix placement, add session usage, remove note

Co-authored-by: eavanvalkenburg <13749212+eavanvalkenburg@users.noreply.github.com>

* Update Redis README to reference renamed file redis_history_provider.py

Co-authored-by: eavanvalkenburg <13749212+eavanvalkenburg@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>
Co-authored-by: Tao Chen <taochen@microsoft.com>
Co-authored-by: eavanvalkenburg <13749212+eavanvalkenburg@users.noreply.github.com>
Co-authored-by: Eduard van Valkenburg <eavanvalkenburg@users.noreply.github.com>

python/samples/02-agents/providers/amazon/bedrock_chat_client.py

@@ -5,8 +5,12 @@ from typing import Annotated
 
 from agent_framework import Agent, tool
 from agent_framework.amazon import BedrockChatClient
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Bedrock Chat Client Example
 

python/samples/02-agents/providers/anthropic/anthropic_advanced.py

@@ -3,6 +3,10 @@
 import asyncio
 
 from agent_framework.anthropic import AnthropicChatOptions, AnthropicClient
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Anthropic Chat Agent Example

python/samples/02-agents/providers/anthropic/anthropic_basic.py

@@ -6,6 +6,10 @@ from typing import Annotated
 
 from agent_framework import tool
 from agent_framework.anthropic import AnthropicClient
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Anthropic Chat Agent Example
@@ -14,7 +18,9 @@ This sample demonstrates using Anthropic with an agent and a single custom tool.
 """
 
 
-# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production; see samples/02-agents/tools/function_tool_with_approval.py and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
+# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production;
+# see samples/02-agents/tools/function_tool_with_approval.py
+# and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
 @tool(approval_mode="never_require")
 def get_weather(
     location: Annotated[str, "The location to get the weather for."],
@@ -28,8 +34,7 @@ async def non_streaming_example() -> None:
     """Example of non-streaming response (get the complete result at once)."""
     print("=== Non-streaming Response Example ===")
 
-    agent = AnthropicClient(
-    ).as_agent(
+    agent = AnthropicClient().as_agent(
         name="WeatherAgent",
         instructions="You are a helpful weather agent.",
         tools=get_weather,
@@ -45,8 +50,7 @@ async def streaming_example() -> None:
     """Example of streaming response (get results as they are generated)."""
     print("=== Streaming Response Example ===")
 
-    agent = AnthropicClient(
-    ).as_agent(
+    agent = AnthropicClient().as_agent(
         name="WeatherAgent",
         instructions="You are a helpful weather agent.",
         tools=get_weather,

python/samples/02-agents/providers/anthropic/anthropic_claude_basic.py

@@ -20,6 +20,10 @@ from typing import Annotated
 
 from agent_framework import tool
 from agent_framework.anthropic import ClaudeAgent
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 
 @tool

python/samples/02-agents/providers/anthropic/anthropic_claude_with_mcp.py

@@ -21,6 +21,10 @@ from typing import Any
 
 from agent_framework.anthropic import ClaudeAgent
 from claude_agent_sdk import PermissionResultAllow, PermissionResultDeny
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 
 async def prompt_permission(

python/samples/02-agents/providers/anthropic/anthropic_foundry.py

@@ -4,6 +4,10 @@ import asyncio
 
 from agent_framework.anthropic import AnthropicClient
 from anthropic import AsyncAnthropicFoundry
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Anthropic Foundry Chat Agent Example

python/samples/02-agents/providers/anthropic/anthropic_skills.py

@@ -6,6 +6,10 @@ from pathlib import Path
 
 from agent_framework import Content
 from agent_framework.anthropic import AnthropicChatOptions, AnthropicClient
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 logger = logging.getLogger(__name__)
 """

python/samples/02-agents/providers/azure_ai/azure_ai_basic.py

@@ -7,8 +7,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent Basic Example
 

python/samples/02-agents/providers/azure_ai/azure_ai_provider_methods.py

@@ -10,8 +10,12 @@ from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.ai.projects.aio import AIProjectClient
 from azure.ai.projects.models import AgentReference, PromptAgentDefinition
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Project Agent Provider Methods Example
 

python/samples/02-agents/providers/azure_ai/azure_ai_use_latest_version.py

@@ -7,8 +7,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent Latest Version Example
 

python/samples/02-agents/providers/azure_ai/azure_ai_with_agent_as_tool.py

@@ -6,6 +6,10 @@ from collections.abc import Awaitable, Callable
 from agent_framework import FunctionInvocationContext
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent-as-Tool Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_agent_to_agent.py

@@ -4,6 +4,10 @@ import os
 
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Agent-to-Agent (A2A) Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_application_endpoint.py

@@ -7,6 +7,10 @@ from agent_framework import Agent
 from agent_framework.azure import AzureAIClient
 from azure.ai.projects.aio import AIProjectClient
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Application Endpoint Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_azure_ai_search.py

@@ -4,6 +4,10 @@ import os
 
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Azure AI Search Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_bing_custom_search.py

@@ -4,6 +4,10 @@ import os
 
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Bing Custom Search Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_bing_grounding.py

@@ -4,6 +4,10 @@ import os
 
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Bing Grounding Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_browser_automation.py

@@ -4,6 +4,10 @@ import os
 
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Browser Automation Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_code_interpreter.py

@@ -5,9 +5,13 @@ import asyncio
 from agent_framework import ChatResponse
 from agent_framework.azure import AzureAIClient, AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from openai.types.responses.response import Response as OpenAIResponse
 from openai.types.responses.response_code_interpreter_tool_call import ResponseCodeInterpreterToolCall
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent Code Interpreter Example
 

python/samples/02-agents/providers/azure_ai/azure_ai_with_code_interpreter_file_download.py

@@ -12,6 +12,10 @@ from agent_framework import (
 )
 from agent_framework.azure import AzureAIClient, AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI V2 Code Interpreter File Download Sample

python/samples/02-agents/providers/azure_ai/azure_ai_with_code_interpreter_file_generation.py

@@ -7,6 +7,10 @@ from agent_framework import (
 )
 from agent_framework.azure import AzureAIClient, AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI V2 Code Interpreter File Generation Sample

python/samples/02-agents/providers/azure_ai/azure_ai_with_content_filtering.py

@@ -5,6 +5,10 @@ import asyncio
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.ai.projects.models import RaiConfig
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Content Filtering (RAI Policy) Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_existing_agent.py

@@ -7,6 +7,10 @@ from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.ai.projects.aio import AIProjectClient
 from azure.ai.projects.models import PromptAgentDefinition
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Existing Agent Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_existing_conversation.py

@@ -8,8 +8,12 @@ from agent_framework import tool
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.ai.projects.aio import AIProjectClient
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent Existing Conversation Example
 

python/samples/02-agents/providers/azure_ai/azure_ai_with_explicit_settings.py

@@ -8,8 +8,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent with Explicit Settings Example
 

python/samples/02-agents/providers/azure_ai/azure_ai_with_file_search.py

@@ -8,6 +8,10 @@ from pathlib import Path
 from agent_framework.azure import AzureAIClient, AzureAIProjectAgentProvider
 from azure.ai.projects.aio import AIProjectClient
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 The following sample demonstrates how to create a simple, Azure AI agent that

python/samples/02-agents/providers/azure_ai/azure_ai_with_hosted_mcp.py

@@ -6,6 +6,10 @@ from typing import Any
 from agent_framework import AgentResponse, AgentSession, Message, SupportsAgentRun
 from agent_framework.azure import AzureAIClient, AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Hosted MCP Example
@@ -35,7 +39,9 @@ async def handle_approvals_without_session(query: str, agent: "SupportsAgentRun"
     return result
 
 
-async def handle_approvals_with_session(query: str, agent: "SupportsAgentRun", session: "AgentSession") -> AgentResponse:
+async def handle_approvals_with_session(
+    query: str, agent: "SupportsAgentRun", session: "AgentSession"
+) -> AgentResponse:
     """Here we let the session deal with the previous responses, and we just rerun with the approval."""
 
     result = await agent.run(query, session=session)

python/samples/02-agents/providers/azure_ai/azure_ai_with_image_generation.py

@@ -7,6 +7,10 @@ from urllib import request as urllib_request
 
 from agent_framework.azure import AzureAIClient, AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Image Generation Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_local_mcp.py

@@ -5,6 +5,10 @@ import asyncio
 from agent_framework import MCPStreamableHTTPTool
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Local MCP Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_memory_search.py

@@ -7,6 +7,10 @@ from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.ai.projects.aio import AIProjectClient
 from azure.ai.projects.models import MemoryStoreDefaultDefinition, MemoryStoreDefaultOptions
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Memory Search Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_microsoft_fabric.py

@@ -4,6 +4,10 @@ import os
 
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Microsoft Fabric Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_openapi.py

@@ -5,6 +5,10 @@ from pathlib import Path
 
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with OpenAPI Tool Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_reasoning.py

@@ -5,6 +5,10 @@ import asyncio
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.ai.projects.models import Reasoning
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Reasoning Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_response_format.py

@@ -4,8 +4,12 @@ import asyncio
 
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import BaseModel, ConfigDict
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent Response Format Example
 

python/samples/02-agents/providers/azure_ai/azure_ai_with_runtime_json_schema.py

@@ -4,6 +4,10 @@ import asyncio
 
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent Response Format Example with Runtime JSON Schema

python/samples/02-agents/providers/azure_ai/azure_ai_with_session.py

@@ -7,8 +7,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent with Session Management Example
 

python/samples/02-agents/providers/azure_ai/azure_ai_with_sharepoint.py

@@ -4,6 +4,10 @@ import os
 
 from agent_framework.azure import AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with SharePoint Example

python/samples/02-agents/providers/azure_ai/azure_ai_with_web_search.py

@@ -4,6 +4,10 @@ import asyncio
 
 from agent_framework.azure import AzureAIClient, AzureAIProjectAgentProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent With Web Search

python/samples/02-agents/providers/azure_ai_agent/azure_ai_basic.py

@@ -7,8 +7,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureAIAgentsProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent Basic Example
 

python/samples/02-agents/providers/azure_ai_agent/azure_ai_provider_methods.py

@@ -9,8 +9,12 @@ from agent_framework import tool
 from agent_framework.azure import AzureAIAgentsProvider
 from azure.ai.agents.aio import AgentsClient
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent Provider Methods Example
 

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_azure_ai_search.py

@@ -9,6 +9,10 @@ from azure.ai.agents.aio import AgentsClient
 from azure.ai.projects.aio import AIProjectClient
 from azure.ai.projects.models import ConnectionType
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Azure AI Search Example

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_bing_custom_search.py

@@ -4,6 +4,10 @@ import asyncio
 
 from agent_framework.azure import AzureAIAgentClient, AzureAIAgentsProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 The following sample demonstrates how to create an Azure AI agent that

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_bing_grounding.py

@@ -4,6 +4,10 @@ import asyncio
 
 from agent_framework.azure import AzureAIAgentClient, AzureAIAgentsProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 The following sample demonstrates how to create an Azure AI agent that

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_bing_grounding_citations.py

@@ -5,6 +5,10 @@ import asyncio
 from agent_framework import Annotation
 from agent_framework.azure import AzureAIAgentClient, AzureAIAgentsProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 This sample demonstrates how to create an Azure AI agent that uses Bing Grounding

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_code_interpreter.py

@@ -8,6 +8,10 @@ from azure.ai.agents.models import (
     RunStepDeltaCodeInterpreterDetailItemObject,
 )
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Code Interpreter Example

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_code_interpreter_file_generation.py

@@ -6,6 +6,10 @@ import os
 from agent_framework.azure import AzureAIAgentClient, AzureAIAgentsProvider
 from azure.ai.agents.aio import AgentsClient
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent Code Interpreter File Generation Example

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_existing_agent.py

@@ -6,6 +6,10 @@ import os
 from agent_framework.azure import AzureAIAgentsProvider
 from azure.ai.agents.aio import AgentsClient
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Existing Agent Example

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_existing_session.py

@@ -9,8 +9,12 @@ from agent_framework import tool
 from agent_framework.azure import AzureAIAgentsProvider
 from azure.ai.agents.aio import AgentsClient
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent with Existing Session Example
 

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_explicit_settings.py

@@ -8,8 +8,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureAIAgentsProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent with Explicit Settings Example
 

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_file_search.py

@@ -8,6 +8,10 @@ from agent_framework.azure import AzureAIAgentClient, AzureAIAgentsProvider
 from azure.ai.agents.aio import AgentsClient
 from azure.ai.agents.models import FileInfo, VectorStore
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 The following sample demonstrates how to create a simple, Azure AI agent that

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_function_tools.py

@@ -8,8 +8,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureAIAgentsProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent with Function Tools Example
 

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_hosted_mcp.py

@@ -6,6 +6,10 @@ from typing import Any
 from agent_framework import AgentResponse, AgentSession, SupportsAgentRun
 from agent_framework.azure import AzureAIAgentClient, AzureAIAgentsProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Hosted MCP Example
@@ -15,7 +19,9 @@ servers, including user approval workflows for function call security.
 """
 
 
-async def handle_approvals_with_session(query: str, agent: "SupportsAgentRun", session: "AgentSession") -> AgentResponse:
+async def handle_approvals_with_session(
+    query: str, agent: "SupportsAgentRun", session: "AgentSession"
+) -> AgentResponse:
     """Here we let the session deal with the previous responses, and we just rerun with the approval."""
     from agent_framework import Message
 

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_local_mcp.py

@@ -5,6 +5,10 @@ import asyncio
 from agent_framework import MCPStreamableHTTPTool
 from agent_framework.azure import AzureAIAgentsProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Local MCP Example

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_multiple_tools.py

@@ -11,6 +11,10 @@ from agent_framework import (
 )
 from agent_framework.azure import AzureAIAgentClient, AzureAIAgentsProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure AI Agent with Multiple Tools Example

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_openapi_tools.py

@@ -8,6 +8,10 @@ from typing import Any
 from agent_framework.azure import AzureAIAgentsProvider
 from azure.ai.agents.models import OpenApiAnonymousAuthDetails, OpenApiTool
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 The following sample demonstrates how to create a simple, Azure AI agent that

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_response_format.py

@@ -4,8 +4,12 @@ import asyncio
 
 from agent_framework.azure import AzureAIAgentsProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import BaseModel, ConfigDict
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent Provider Response Format Example
 

python/samples/02-agents/providers/azure_ai_agent/azure_ai_with_session.py

@@ -7,8 +7,12 @@ from typing import Annotated
 from agent_framework import AgentSession, tool
 from agent_framework.azure import AzureAIAgentsProvider
 from azure.identity.aio import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure AI Agent with Session Management Example
 

python/samples/02-agents/providers/azure_openai/azure_assistants_basic.py

@@ -7,8 +7,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureOpenAIAssistantsClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Assistants Basic Example
 

python/samples/02-agents/providers/azure_openai/azure_assistants_with_code_interpreter.py

@@ -4,6 +4,7 @@ import asyncio
 
 from agent_framework import Agent, AgentResponseUpdate, ChatResponseUpdate
 from agent_framework.azure import AzureOpenAIAssistantsClient
+from dotenv import load_dotenv
 from openai.types.beta.threads.runs import (
     CodeInterpreterToolCallDelta,
     RunStepDelta,
@@ -12,6 +13,9 @@ from openai.types.beta.threads.runs import (
 )
 from openai.types.beta.threads.runs.code_interpreter_tool_call_delta import CodeInterpreter
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Assistants with Code Interpreter Example
 

python/samples/02-agents/providers/azure_openai/azure_assistants_with_existing_assistant.py

@@ -8,9 +8,13 @@ from typing import Annotated
 from agent_framework import Agent, tool
 from agent_framework.azure import AzureOpenAIAssistantsClient
 from azure.identity import AzureCliCredential, get_bearer_token_provider
+from dotenv import load_dotenv
 from openai import AsyncAzureOpenAI
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Assistants with Existing Assistant Example
 

python/samples/02-agents/providers/azure_openai/azure_assistants_with_explicit_settings.py

@@ -8,8 +8,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureOpenAIAssistantsClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Assistants with Explicit Settings Example
 

python/samples/02-agents/providers/azure_openai/azure_assistants_with_function_tools.py

@@ -8,8 +8,12 @@ from typing import Annotated
 from agent_framework import Agent, tool
 from agent_framework.azure import AzureOpenAIAssistantsClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Assistants with Function Tools Example
 

python/samples/02-agents/providers/azure_openai/azure_assistants_with_session.py

@@ -7,8 +7,12 @@ from typing import Annotated
 from agent_framework import Agent, AgentSession, tool
 from agent_framework.azure import AzureOpenAIAssistantsClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Assistants with Session Management Example
 

python/samples/02-agents/providers/azure_openai/azure_chat_client_basic.py

@@ -7,8 +7,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureOpenAIChatClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Chat Client Basic Example
 

python/samples/02-agents/providers/azure_openai/azure_chat_client_with_explicit_settings.py

@@ -8,8 +8,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureOpenAIChatClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Chat Client with Explicit Settings Example
 

python/samples/02-agents/providers/azure_openai/azure_chat_client_with_function_tools.py

@@ -8,8 +8,12 @@ from typing import Annotated
 from agent_framework import Agent, tool
 from agent_framework.azure import AzureOpenAIChatClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Chat Client with Function Tools Example
 

python/samples/02-agents/providers/azure_openai/azure_chat_client_with_session.py

@@ -7,8 +7,12 @@ from typing import Annotated
 from agent_framework import Agent, AgentSession, InMemoryHistoryProvider, tool
 from agent_framework.azure import AzureOpenAIChatClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Chat Client with Session Management Example
 

python/samples/02-agents/providers/azure_openai/azure_responses_client_basic.py

@@ -7,8 +7,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureOpenAIResponsesClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Responses Client Basic Example
 

python/samples/02-agents/providers/azure_openai/azure_responses_client_code_interpreter_files.py

@@ -7,8 +7,12 @@ import tempfile
 from agent_framework import Agent
 from agent_framework.azure import AzureOpenAIResponsesClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from openai import AsyncAzureOpenAI
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Responses Client with Code Interpreter and Files Example
 

python/samples/02-agents/providers/azure_openai/azure_responses_client_image_analysis.py

@@ -5,6 +5,10 @@ import asyncio
 from agent_framework import Content
 from agent_framework.azure import AzureOpenAIResponsesClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure OpenAI Responses Client with Image Analysis Example

python/samples/02-agents/providers/azure_openai/azure_responses_client_with_code_interpreter.py

@@ -5,9 +5,13 @@ import asyncio
 from agent_framework import Agent, ChatResponse
 from agent_framework.azure import AzureOpenAIResponsesClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from openai.types.responses.response import Response as OpenAIResponse
 from openai.types.responses.response_code_interpreter_tool_call import ResponseCodeInterpreterToolCall
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Responses Client with Code Interpreter Example
 

python/samples/02-agents/providers/azure_openai/azure_responses_client_with_explicit_settings.py

@@ -8,8 +8,12 @@ from typing import Annotated
 from agent_framework import tool
 from agent_framework.azure import AzureOpenAIResponsesClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Responses Client with Explicit Settings Example
 

python/samples/02-agents/providers/azure_openai/azure_responses_client_with_file_search.py

@@ -6,6 +6,10 @@ import contextlib
 from agent_framework import Agent
 from agent_framework.azure import AzureOpenAIResponsesClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure OpenAI Responses Client with File Search Example

python/samples/02-agents/providers/azure_openai/azure_responses_client_with_foundry.py

@@ -11,6 +11,9 @@ from azure.identity import AzureCliCredential
 from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Responses Client with Foundry Project Example
 
@@ -23,9 +26,7 @@ This requires:
 - The `azure-ai-projects` package to be installed.
 - The `AZURE_AI_PROJECT_ENDPOINT` environment variable set to your Foundry project endpoint.
 - The `AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME` environment variable set to the model deployment name.
-"""
-
-load_dotenv()  # Load environment variables from .env file if present
+"""  # Load environment variables from .env file if present
 
 
 # NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production; see samples/02-agents/tools/function_tool_with_approval.py and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.

python/samples/02-agents/providers/azure_openai/azure_responses_client_with_function_tools.py

@@ -8,8 +8,12 @@ from typing import Annotated
 from agent_framework import Agent, tool
 from agent_framework.azure import AzureOpenAIResponsesClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Responses Client with Function Tools Example
 

python/samples/02-agents/providers/azure_openai/azure_responses_client_with_hosted_mcp.py

@@ -6,6 +6,10 @@ from typing import TYPE_CHECKING, Any
 from agent_framework import Agent
 from agent_framework.azure import AzureOpenAIResponsesClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure OpenAI Responses Client with Hosted MCP Example

python/samples/02-agents/providers/azure_openai/azure_responses_client_with_local_mcp.py

@@ -6,6 +6,10 @@ import os
 from agent_framework import Agent, MCPStreamableHTTPTool
 from agent_framework.azure import AzureOpenAIResponsesClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Azure OpenAI Responses Client with local Model Context Protocol (MCP) Example

python/samples/02-agents/providers/azure_openai/azure_responses_client_with_session.py

@@ -7,8 +7,12 @@ from typing import Annotated
 from agent_framework import Agent, AgentSession, tool
 from agent_framework.azure import AzureOpenAIResponsesClient
 from azure.identity import AzureCliCredential
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 Azure OpenAI Responses Client with Session Management Example
 

python/samples/02-agents/providers/copilotstudio/copilotstudio_basic.py

@@ -3,6 +3,7 @@
 import asyncio
 
 from agent_framework.microsoft import CopilotStudioAgent
+from dotenv import load_dotenv
 
 """
 Copilot Studio Agent Basic Example
@@ -11,12 +12,16 @@ This sample demonstrates basic usage of CopilotStudioAgent with automatic config
 from environment variables, showing both streaming and non-streaming responses.
 """
 
+
 # Environment variables needed:
 # COPILOTSTUDIOAGENT__ENVIRONMENTID - Environment ID where your copilot is deployed
 # COPILOTSTUDIOAGENT__SCHEMANAME - Agent identifier/schema name of your copilot
 # COPILOTSTUDIOAGENT__AGENTAPPID - Client ID for authentication
 # COPILOTSTUDIOAGENT__TENANTID - Tenant ID for authentication
 
+# Load environment variables from .env file
+load_dotenv()
+
 
 async def non_streaming_example() -> None:
     """Example of non-streaming response (get the complete result at once)."""

python/samples/02-agents/providers/copilotstudio/copilotstudio_with_explicit_settings.py

@@ -13,6 +13,7 @@ import asyncio
 import os
 
 from agent_framework.microsoft import CopilotStudioAgent, acquire_token
+from dotenv import load_dotenv
 from microsoft_agents.copilotstudio.client import AgentType, ConnectionSettings, CopilotClient, PowerPlatformCloud
 
 """
@@ -22,12 +23,16 @@ This sample demonstrates explicit configuration of CopilotStudioAgent with manua
 token management and custom ConnectionSettings for production environments.
 """
 
+
 # Environment variables needed:
 # COPILOTSTUDIOAGENT__ENVIRONMENTID - Environment ID where your copilot is deployed
 # COPILOTSTUDIOAGENT__SCHEMANAME - Agent identifier/schema name of your copilot
 # COPILOTSTUDIOAGENT__AGENTAPPID - Client ID for authentication
 # COPILOTSTUDIOAGENT__TENANTID - Tenant ID for authentication
 
+# Load environment variables from .env file
+load_dotenv()
+
 
 async def example_with_connection_settings() -> None:
     """Example using explicit ConnectionSettings and CopilotClient."""

python/samples/02-agents/providers/github_copilot/github_copilot_basic.py

@@ -19,10 +19,16 @@ from typing import Annotated
 
 from agent_framework import tool
 from agent_framework.github import GitHubCopilotAgent
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
 
-# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production; see samples/02-agents/tools/function_tool_with_approval.py and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
+
+# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production;
+# see samples/02-agents/tools/function_tool_with_approval.py
+# and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
 @tool(approval_mode="never_require")
 def get_weather(
     location: Annotated[str, Field(description="The location to get the weather for.")],

python/samples/02-agents/providers/github_copilot/github_copilot_with_mcp.py

@@ -16,6 +16,10 @@ import asyncio
 
 from agent_framework.github import GitHubCopilotAgent
 from copilot.types import MCPServerConfig, PermissionRequest, PermissionRequestResult
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 
 def prompt_permission(request: PermissionRequest, context: dict[str, str]) -> PermissionRequestResult:

python/samples/02-agents/providers/github_copilot/github_copilot_with_session.py

@@ -17,7 +17,9 @@ from agent_framework.github import GitHubCopilotAgent
 from pydantic import Field
 
 
-# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production; see samples/02-agents/tools/function_tool_with_approval.py and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
+# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production;
+# see samples/02-agents/tools/function_tool_with_approval.py
+# and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
 @tool(approval_mode="never_require")
 def get_weather(
     location: Annotated[str, Field(description="The location to get the weather for.")],

python/samples/02-agents/providers/ollama/ollama_agent_basic.py

@@ -5,6 +5,10 @@ from datetime import datetime
 
 from agent_framework import tool
 from agent_framework.ollama import OllamaChatClient
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Ollama Agent Basic Example
@@ -19,7 +23,9 @@ https://ollama.com/
 """
 
 
-# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production; see samples/02-agents/tools/function_tool_with_approval.py and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
+# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production;
+# see samples/02-agents/tools/function_tool_with_approval.py
+# and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
 @tool(approval_mode="never_require")
 def get_time(location: str) -> str:
     """Get the current time."""

python/samples/02-agents/providers/ollama/ollama_agent_reasoning.py

@@ -3,6 +3,10 @@
 import asyncio
 
 from agent_framework.ollama import OllamaChatClient
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Ollama Agent Reasoning Example

python/samples/02-agents/providers/ollama/ollama_chat_client.py

@@ -5,6 +5,10 @@ from datetime import datetime
 
 from agent_framework import Message, tool
 from agent_framework.ollama import OllamaChatClient
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Ollama Chat Client Example
@@ -19,7 +23,9 @@ https://ollama.com/
 """
 
 
-# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production; see samples/02-agents/tools/function_tool_with_approval.py and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
+# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production;
+# see samples/02-agents/tools/function_tool_with_approval.py
+# and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
 @tool(approval_mode="never_require")
 def get_time():
     """Get the current time."""

python/samples/02-agents/providers/ollama/ollama_chat_multimodal.py

@@ -4,6 +4,10 @@ import asyncio
 
 from agent_framework import Content, Message
 from agent_framework.ollama import OllamaChatClient
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Ollama Agent Multimodal Example

python/samples/02-agents/providers/ollama/ollama_with_openai_chat_client.py

@@ -7,6 +7,10 @@ from typing import Annotated
 
 from agent_framework import tool
 from agent_framework.openai import OpenAIChatClient
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 Ollama with OpenAI Chat Client Example
@@ -21,7 +25,9 @@ Environment Variables:
 """
 
 
-# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production; see samples/02-agents/tools/function_tool_with_approval.py and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
+# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production;
+# see samples/02-agents/tools/function_tool_with_approval.py
+# and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
 @tool(approval_mode="never_require")
 def get_weather(
     location: Annotated[str, "The location to get the weather for."],

python/samples/02-agents/providers/openai/openai_assistants_basic.py

@@ -7,9 +7,13 @@ from typing import Annotated
 
 from agent_framework import tool
 from agent_framework.openai import OpenAIAssistantProvider
+from dotenv import load_dotenv
 from openai import AsyncOpenAI
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 OpenAI Assistants Basic Example
 

python/samples/02-agents/providers/openai/openai_assistants_provider_methods.py

@@ -7,9 +7,13 @@ from typing import Annotated
 
 from agent_framework import tool
 from agent_framework.openai import OpenAIAssistantProvider
+from dotenv import load_dotenv
 from openai import AsyncOpenAI
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 OpenAI Assistant Provider Methods Example
 

python/samples/02-agents/providers/openai/openai_assistants_with_code_interpreter.py

@@ -5,6 +5,7 @@ import os
 
 from agent_framework import AgentResponseUpdate, ChatResponseUpdate
 from agent_framework.openai import OpenAIAssistantProvider, OpenAIAssistantsClient
+from dotenv import load_dotenv
 from openai import AsyncOpenAI
 from openai.types.beta.threads.runs import (
     CodeInterpreterToolCallDelta,
@@ -14,6 +15,9 @@ from openai.types.beta.threads.runs import (
 )
 from openai.types.beta.threads.runs.code_interpreter_tool_call_delta import CodeInterpreter
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 OpenAI Assistants with Code Interpreter Example
 

python/samples/02-agents/providers/openai/openai_assistants_with_existing_assistant.py

@@ -7,9 +7,13 @@ from typing import Annotated
 
 from agent_framework import tool
 from agent_framework.openai import OpenAIAssistantProvider
+from dotenv import load_dotenv
 from openai import AsyncOpenAI
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 OpenAI Assistants with Existing Assistant Example
 
@@ -18,7 +22,9 @@ using the provider's get_agent() and as_agent() methods.
 """
 
 
-# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production; see samples/02-agents/tools/function_tool_with_approval.py and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
+# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production;
+# see samples/02-agents/tools/function_tool_with_approval.py
+# and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
 @tool(approval_mode="never_require")
 def get_weather(
     location: Annotated[str, Field(description="The location to get the weather for.")],

python/samples/02-agents/providers/openai/openai_assistants_with_explicit_settings.py

@@ -7,9 +7,13 @@ from typing import Annotated
 
 from agent_framework import tool
 from agent_framework.openai import OpenAIAssistantProvider
+from dotenv import load_dotenv
 from openai import AsyncOpenAI
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 OpenAI Assistants with Explicit Settings Example
 

python/samples/02-agents/providers/openai/openai_assistants_with_file_search.py

@@ -5,8 +5,12 @@ import os
 
 from agent_framework import Content
 from agent_framework.openai import OpenAIAssistantProvider, OpenAIAssistantsClient
+from dotenv import load_dotenv
 from openai import AsyncOpenAI
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 OpenAI Assistants with File Search Example
 

python/samples/02-agents/providers/openai/openai_assistants_with_function_tools.py

@@ -8,9 +8,13 @@ from typing import Annotated
 
 from agent_framework import tool
 from agent_framework.openai import OpenAIAssistantProvider
+from dotenv import load_dotenv
 from openai import AsyncOpenAI
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 OpenAI Assistants with Function Tools Example
 
@@ -19,7 +23,9 @@ showing both agent-level and query-level tool configuration patterns.
 """
 
 
-# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production; see samples/02-agents/tools/function_tool_with_approval.py and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
+# NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production;
+# see samples/02-agents/tools/function_tool_with_approval.py
+# and samples/02-agents/tools/function_tool_with_approval_and_sessions.py.
 @tool(approval_mode="never_require")
 def get_weather(
     location: Annotated[str, Field(description="The location to get the weather for.")],

python/samples/02-agents/providers/openai/openai_assistants_with_response_format.py

@@ -4,9 +4,13 @@ import asyncio
 import os
 
 from agent_framework.openai import OpenAIAssistantProvider
+from dotenv import load_dotenv
 from openai import AsyncOpenAI
 from pydantic import BaseModel, ConfigDict
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 OpenAI Assistant Provider Response Format Example
 

python/samples/02-agents/providers/openai/openai_assistants_with_session.py

@@ -7,9 +7,13 @@ from typing import Annotated
 
 from agent_framework import AgentSession, tool
 from agent_framework.openai import OpenAIAssistantProvider
+from dotenv import load_dotenv
 from openai import AsyncOpenAI
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 OpenAI Assistants with Session Management Example
 

python/samples/02-agents/providers/openai/openai_chat_client_basic.py

@@ -6,6 +6,10 @@ from typing import Annotated
 
 from agent_framework import tool
 from agent_framework.openai import OpenAIChatClient
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 OpenAI Chat Client Basic Example

python/samples/02-agents/providers/openai/openai_chat_client_with_explicit_settings.py

@@ -7,8 +7,12 @@ from typing import Annotated
 
 from agent_framework import tool
 from agent_framework.openai import OpenAIChatClient
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 OpenAI Chat Client with Explicit Settings Example
 

python/samples/02-agents/providers/openai/openai_chat_client_with_function_tools.py

@@ -7,8 +7,12 @@ from typing import Annotated
 
 from agent_framework import Agent, tool
 from agent_framework.openai import OpenAIChatClient
+from dotenv import load_dotenv
 from pydantic import Field
 
+# Load environment variables from .env file
+load_dotenv()
+
 """
 OpenAI Chat Client with Function Tools Example
 

python/samples/02-agents/providers/openai/openai_chat_client_with_local_mcp.py

@@ -4,6 +4,10 @@ import asyncio
 
 from agent_framework import Agent, MCPStreamableHTTPTool
 from agent_framework.openai import OpenAIChatClient
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
 
 """
 OpenAI Chat Client with Local MCP Example