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Evan Mattson 9b22ecd119 Python: Add requirements.txt and .env.example to the a2a/ sample for pip-based setup (#5510)
* Add requirements.txt and .env.example to a2a sample

Beginners following the a2a/ sample had no pip-based install path:
the directory lacked requirements.txt and .env.example, unlike every
other 04-hosting/ sample.

- Add requirements.txt with editable local package paths matching the
  pattern used in azure_functions/ and similar hosting samples
- Add .env.example documenting FOUNDRY_PROJECT_ENDPOINT, FOUNDRY_MODEL,
  and A2A_AGENT_HOST
- Update README Quick Start to cover both pip (.venv) and uv workflows

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

* Python: Add `requirements.txt` and `.env.example` to the `a2a/` sample for pip-based setup

Fixes #5395

* fix(a2a-sample): address PR review feedback for issue #5395

- Remove 'from repo root' wording from Option B uv heading in README
  to avoid contradicting the 'run from this directory' instruction
- Fix A2A_AGENT_HOST default in .env.example from 5001 to 5000 to match
  function-tools flow; add clarifying comments about port usage
- Add note for pip users explaining they can replace 'uv run python'
  with 'python' once the virtual environment is activated

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

* Address review feedback for #5395: Python: [Samples][Python] a2a/ sample missing requirements.txt — beginners cannot install dependencies

---------

Co-authored-by: Copilot <copilot@github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-04-27 22:22:07 +00:00

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# Azure AI Foundry Configuration (required for a2a_server.py and a2a_agent_as_function_tools.py)
FOUNDRY_PROJECT_ENDPOINT=https://your-project.services.ai.azure.com/api/projects/your-project
FOUNDRY_MODEL=gpt-4o
# A2A Client Configuration (required for agent_with_a2a.py and a2a_agent_as_function_tools.py)
# The function-tools flow uses http://localhost:5000/ in the sample docs/output.
# Update this value if you start a different local A2A server instance on another port.
A2A_AGENT_HOST=http://localhost:5000/