Python: chore(python): improve dependency range automation (#4343)

* chore(python): improve dependency range automation

- tighten dependency bounds and coding standards guidance\n- add dependency range validation workflow, reporting, and issue automation\n- update related tests and dependency pins for compatibility

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

* updated text and pyarrow

* new lock

* fixed workflow

* updated deps

* fix tiktoken

* chore(python): refine dependency validation workflows

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

* docs(python): add high-level dependency validation comments

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

* WIP

* added additional comments and excludes

* added dev dependency handling and workflow and updates to package ranges

* added readme and simplified commands

* fix markers

* chore(python): address dependency review feedback

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

* Tighten dependency bounds, remove stale overrides, restore Python 3.10 support

- Apply dependency bound policy across all packages: stable >=1.0 deps use
  >=floor,<next_major; pre-1.0/prerelease deps use validated hard-bounded ranges
- Remove stale root tool.uv.override-dependencies (uvicorn, websockets, grpcio)
- Lower github_copilot requires-python to >=3.10 with github-copilot-sdk gated
  behind python_version >= 3.11 marker; import raises ImportError on 3.10
- Skip github_copilot pyright/mypy/test tasks on Python <3.11
- Use version-conditional pyrightconfig for samples on Python 3.10
- Add compatibility fix in core responses client for older openai typed dicts
- Normalize uv.lock prerelease mode and refresh dev dependencies
- Update CODING_STANDARD.md, DEV_SETUP.md, and package management skill docs

Closes #902

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

* small tweaks

* add note in workflow

* fix workflows and several versions

* fix duplicate

---------

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

python/packages/ag-ui/agent_framework_ag_ui_examples/server/main.py

@@ -6,13 +6,12 @@ from __future__ import annotations
 
 import logging
 import os
-from typing import cast
+from typing import Any, cast
 
 import uvicorn
 from agent_framework import ChatOptions
 from agent_framework._clients import SupportsChatGetResponse
 from agent_framework.ag_ui import add_agent_framework_fastapi_endpoint
-from agent_framework.anthropic import AnthropicClient
 from agent_framework.azure import AzureOpenAIChatClient
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
@@ -26,6 +25,15 @@ from ..agents.task_steps_agent import task_steps_agent_wrapped
 from ..agents.ui_generator_agent import ui_generator_agent
 from ..agents.weather_agent import weather_agent
 
+AnthropicClient: type[Any] | None
+try:
+    import agent_framework.anthropic as _anthropic_namespace
+except ImportError:
+    # If the Anthropic client isn't installed, we can still run the server with Azure OpenAI as the default chat client
+    AnthropicClient = None
+else:
+    AnthropicClient = cast(type[Any] | None, getattr(_anthropic_namespace, "AnthropicClient", None))
+
 # Configure logging to file and console (disabled by default - set ENABLE_DEBUG_LOGGING=1 to enable)
 if os.getenv("ENABLE_DEBUG_LOGGING"):
     log_file = os.path.join(os.path.dirname(os.path.abspath(__file__)), "..", "..", "ag_ui_server.log")
@@ -70,7 +78,9 @@ app.add_middleware(
 # Set CHAT_CLIENT=anthropic to use Anthropic, defaults to Azure OpenAI
 client: SupportsChatGetResponse[ChatOptions] = cast(
     SupportsChatGetResponse[ChatOptions],
-    AnthropicClient() if os.getenv("CHAT_CLIENT", "").lower() == "anthropic" else AzureOpenAIChatClient(),
+    AnthropicClient()
+    if AnthropicClient is not None and os.getenv("CHAT_CLIENT", "").lower() == "anthropic"
+    else AzureOpenAIChatClient(),
 )
 
 # Agentic Chat - basic chat agent

python/packages/ag-ui/pyproject.toml

@@ -23,15 +23,15 @@ classifiers = [
 ]
 dependencies = [
     "agent-framework-core>=1.0.0rc4",
-    "ag-ui-protocol>=0.1.9",
-    "fastapi>=0.115.0",
-    "uvicorn>=0.30.0"
+    "ag-ui-protocol==0.1.13",
+    "fastapi>=0.115.0,<0.133.1",
+    "uvicorn[standard]>=0.30.0,<0.42.0"
 ]
 
 [project.optional-dependencies]
 dev = [
-    "pytest>=8.0.0",
-    "httpx>=0.27.0",
+    "pytest==9.0.2",
+    "httpx==0.28.1",
 ]
 
 [build-system]
@@ -74,4 +74,4 @@ include = "../../shared_tasks.toml"
 
 [tool.poe.tasks]
 mypy = "mypy --config-file $POE_ROOT/pyproject.toml agent_framework_ag_ui"
-test = "pytest -m \"not integration\" --cov=agent_framework_ag_ui --cov-report=term-missing:skip-covered -n auto --dist worksteal tests/ag_ui"
+test = 'pytest -m "not integration" --cov=agent_framework_ag_ui --cov-report=term-missing:skip-covered -n auto --dist worksteal tests/ag_ui'