Python: [BREAKING] Python: Provider-leading client design & OpenAI package extraction (#4818)

* Python: Provider-leading client design & OpenAI package extraction

Major refactoring of the Python Agent Framework client architecture:

- Extract OpenAI clients into new `agent-framework-openai` package
- Core package no longer depends on openai, azure-identity, azure-ai-projects
- Rename clients for discoverability: OpenAIResponsesClient → OpenAIChatClient,
  OpenAIChatClient → OpenAIChatCompletionClient
- Unify `model_id`/`deployment_name`/`model_deployment_name` → `model` param
- New FoundryChatClient for Azure AI Foundry Responses API
- New FoundryAgent/FoundryAgentClient for connecting to pre-configured Foundry agents
- Remove OpenAIBase/OpenAIConfigMixin from non-deprecated client MRO
- Deprecate AzureOpenAI* clients, AzureAIClient, OpenAIAssistantsClient
- Reorganize samples: azure_openai+azure_ai+azure_ai_agent → azure/
- ADR-0020: Provider-Leading Client Design

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: missing Agent imports in samples, .model_id → .model in foundry_local sample

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: CI failures — mypy errors, coverage targets, sample imports

- azure-ai mypy: add type ignores for TypedDict total=, model arg, forward ref
- Coverage: replace core.azure/openai targets with openai package target
- project_provider: add type annotation for opts dict

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: populate openai .pyi stub, fix broken README links, coverage targets

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fixes

* updated observabilitty

* reset azure init.pyi

* fix errors

* updated adr number

* fix foundry local

* fixed not renamed docstrings and comments, and added deprecated markers to old classes

* fix tests and pyprojects

* fix test vars

* updated function tests

* update durable

* updated test setup for functions

* Fix Foundry auth in workflow samples

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Stabilize Python integration workflows

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Update hosting samples for Foundry

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Trigger full CI rerun

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Trigger CI rerun again

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* trigger rerun

* trigger rerun

* fix for litellm

* undo durabletask changes

* Move Foundry APIs into foundry namespace

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix Foundry pyproject formatting

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Split provider samples by Foundry surface

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Restore hosting sample requirements

Also fix the Foundry Local sample link after the provider sample move.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* updated tests

* udpated foundry integration tests

* removed dist from azurefunctions tests

* Use separate Foundry clients for concurrent agents

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix client setup in azfunc and durable

* disabled two tests

* updated setup for some function and durable tests

* improved azure openai setup with new clients

* ignore deprecated

* fixes

* skip 11

* remove openai assistants int tests

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

python/packages/purview/agent_framework_purview/_client.py

@@ -6,12 +6,12 @@ import base64
 import inspect
 import json
 import logging
-from typing import Any, Literal, TypeVar, overload
+from collections.abc import Awaitable, Callable
+from typing import Any, Literal, TypeVar, Union, overload
 from uuid import uuid4
 
 import httpx
 from agent_framework import AGENT_FRAMEWORK_USER_AGENT
-from agent_framework.azure._entra_id_authentication import AzureCredentialTypes, AzureTokenProvider
 from agent_framework.observability import get_tracer
 from azure.core.credentials import TokenCredential
 from azure.core.credentials_async import AsyncTokenCredential
@@ -34,6 +34,9 @@ from ._models import (
 )
 from ._settings import PurviewSettings, get_purview_scopes
 
+AzureCredentialTypes = Union[TokenCredential, AsyncTokenCredential]
+AzureTokenProvider = Callable[[], Union[str, Awaitable[str]]]
+
 logger = logging.getLogger("agent_framework.purview")
 
 ResponseT = TypeVar("ResponseT")

python/packages/purview/agent_framework_purview/_middleware.py

@@ -2,9 +2,11 @@
 
 import logging
 from collections.abc import Awaitable, Callable
+from typing import Union
 
 from agent_framework import AgentContext, AgentMiddleware, ChatContext, ChatMiddleware, MiddlewareTermination
-from agent_framework.azure._entra_id_authentication import AzureCredentialTypes, AzureTokenProvider
+from azure.core.credentials import TokenCredential
+from azure.core.credentials_async import AsyncTokenCredential
 
 from ._cache import CacheProvider
 from ._client import PurviewClient
@@ -13,6 +15,9 @@ from ._models import Activity
 from ._processor import ScopedContentProcessor
 from ._settings import PurviewSettings
 
+AzureCredentialTypes = Union[TokenCredential, AsyncTokenCredential]
+AzureTokenProvider = Callable[[], Union[str, Awaitable[str]]]
+
 logger = logging.getLogger("agent_framework.purview")