python/agent-framework/sample-agent no longer works due to breaking changes in Agent Framework

[shunishii]

Description

Due to recent breaking changes in the Agent Framework, Agent Framework Sample Agent - Python no longer works as expected.
The sample appears to rely on APIs or behaviors that were changed or removed in newer versions of the Agent Framework.

Expected behavior

Align the code with the current Agent Framework APIs.
Alternatively, explicitly fix the library version to a pre-breaking-change release (1.0.0b260210) to avoid confusion for users.

SDK Version

agent-framework-core 1.0.0b260212

Language/Runtime

Python

OS

Windows

How to Reproduce

Follow the quickstart documentation.

1. Clone and open the sample code.
2. Run uv pip install -e . --prerelease=allow to install the packages written in pyproject.toml
3. Run uv run python start_with_generic_host.py

Output

Import error: cannot import name 'ChatAgent' from 'agent_framework'

Screenshots

No response

Code of Conduct

• I agree to follow the Microsoft Open Source Code of Conduct.

[rahuldevikar761]

Public APIs don't change arbitrarily without notice and so I real doubt this now failing because of the change in API, which was tested both locally and via integration test.

2 things I want to point out from the PR linked that can help with debugging:

1. You are running the application from One Drive. I highly suggest to use your disk drive for eg: c:\users<username>\samples and put your sample there.
2. Run uv run python start_with_generic_host.py In the screenshot, you are running python start_with_generic_host.py

[shunishii]

@rahuldevikar761 Thank you for your comment.
However, as announced in the release below, the changes to Agent Framework API are clear.

agent-framework python-1.0.0b260210

Agent 365 sample is still using ChatAgent while importing latest agent-framework packages.

Agent365-Samples/python/agent-framework/sample-agent/agent.py

Line 40 in dfeb6a7

from agent_framework import ChatAgent

Agent365-Samples/python/agent-framework/sample-agent/pyproject.toml

Line 10 in dfeb6a7

"agent-framework-azure-ai",