pyproject.toml settings source not being respected

[christophjones]

Bug summary

discussed in https://prefect-community.slack.com/archives/CL09KU1K7/p1731690940849709

Prefect does not recognize api.url when included in local pyproject.toml

prefect server start

#  pyproject.toml

[tool.prefect]
logging.level = "DEBUG"
api.url = "http://127.0.0.1:4200/api"

# main.py

@flow(log_prints=True)
def run_pipeline():
    print("hello world")

if __name__ == "__main__":
    run_pipeline.serve(name="initial-deployment", cron="*/3 * * * *")
    

ValueError: No Prefect API URL provided. Please set PREFECT_API_URL to the address of a running Prefect server

Runs w/out error when using
prefect config set PREFECT_API_URL="http://127.0.0.1:4200/api"
or updating .env with PREFECT_API_URL="http://127.0.0.1:4200/api"

Version info

`prefect version`

Version:             3.1.1
API version:         0.8.4
Python version:      3.10.11
Built:               Fri, Nov 8, 2024 12:38 PM
OS/Arch:             win32/AMD64
Profile:             local
Server type:         server
Pydantic version:    2.10.0b1

Additional context

No response

[zzstoatzz]

hi @christophjones - thank you for the issue!

hmm what is the file structure you have? I am not able to reproduce this so far (running the flow or using .serve)

» tree
.
├── README.md
├── main.py
├── pyproject.toml
└── uv.lock

1 directory, 4 files
» cat pyproject.toml
[project]
name = "16044"
version = "0.1.0"
description = "Add your description here"
readme = "README.md"
requires-python = ">=3.12"
dependencies = ["prefect>=3.1.2"]

[tool.prefect]
logging.level = "DEBUG"
api.url = "https://api.prefect.cloud/api/accounts/xxx/workspaces/xxx"

» uv run main.py
11:04:11.185 | DEBUG   | prefect.profiles - Using profile 'bleeding'
11:04:11.476 | INFO    | prefect.engine - Created flow run 'refreshing-ammonite' for flow 'run-pipeline'
11:04:11.477 | INFO    | prefect.engine - View at https://app.prefect.cloud/account/xxx/workspace/xxx/runs/flow-run/xxx
11:04:11.684 | DEBUG   | prefect.task_runner.threadpool - Starting task runner
11:04:11.693 | DEBUG   | Flow run 'refreshing-ammonite' - Executing flow 'run-pipeline' for flow run 'refreshing-ammonite'...
11:04:11.699 | INFO    | Flow run 'refreshing-ammonite' - hello world
11:04:11.736 | DEBUG   | prefect.client - Connecting to API at https://api.prefect.cloud/api/accounts/xxx/workspaces/xxx/
11:04:11.817 | DEBUG   | prefect.task_runner.threadpool - Stopping task runner
11:04:11.818 | INFO    | Flow run 'refreshing-ammonite' - Finished in state Completed()