@Marvin how do I change attributes of my current Prefect profile (e.g. PREFECT_API_KEY, PREFECT_API_URL) from within a Python script?

To change attributes of your current Prefect profile, such as

PREFECT_API_KEY

and

PREFECT_API_URL

, from within a Python script, you can make use of the

prefect

command-line interface (CLI) within your script. Here's how you can update these settings:

python
import os

# Set PREFECT_API_KEY and PREFECT_API_URL environment variables
os.environ["PREFECT_API_KEY"] = "your-api-key-here"
os.environ["PREFECT_API_URL"] = "<https://api.prefect.io>"

# Alternatively, if you prefer to use CLI commands, you can use subprocess
import subprocess

# Set PREFECT_API_KEY
subprocess.run(["prefect", "config", "set", "PREFECT_API_KEY=your-api-key-here"], check=True)

# Set PREFECT_API_URL
subprocess.run(["prefect", "config", "set", "PREFECT_API_URL=<https://api.prefect.io>"], check=True)

Replacing

your-api-key-here

and

<https://api.prefect.io>

with your actual API key and API URL. This script uses the

os

module to directly set the environment variables in the Python environment, or

subprocess

module to run Prefect CLI commands to update your profile settings. Here's the Prefect documentation for further reading on setting configurations and instructions on how to setup API configurations. Remember, setting environment variables like this will only affect the current script's execution environment and won't persist for other sessions or scripts unless you set them in your operating system's environment or Prefect configuration file (

~/.prefect/config.toml

).

@Marvin If I do that, then running

PREFECT_API_URL.value()

still gets me the old value

It seems you're trying to update the

PREFECT_API_URL

setting, which should be set in the environment where your worker is running, particularly when using workers and work pools. If you've encountered issues with the

PREFECT_API_URL.value()

still returning the old value, this might be due to the value being cached in the environment or not updated after setting a new value. To address this issue, please ensure you've updated the environment variable

PREFECT_API_URL

in the correct execution environment of your worker (e.g., virtual machine, Docker container, etc.). If you've updated the value and it is still not reflecting, try restarting the worker to ensure that the new settings are loaded. For more information on setting

PREFECT_API_URL

for workers, refer to the Prefect documentation: PREFECT_API_URL setting for workers.

@Marvin is there any way to force a refresh of the setting?

According to the Prefect documentation I found, there isn't a direct mention of forcing a setting to refresh dynamically. However, normally, if you change an environment variable such as

PREFECT_API_URL

, you would need to restart the service or process that uses this environment variable to pick up the new setting. If the service or process that depends on

PREFECT_API_URL

allows for dynamic configuration changes, you would typically need to follow the specific mechanism provided by that service. In the context of Prefect, the documentation implies that this setting must be configured in the environment where the worker is running before the worker starts up. You can review the documentation for more details: - Connecting to Prefect Cloud - PREFECT_API_URL setting for workers If you need further assistance, please refer to the Prefect community or support for more detailed guidance on dynamically updating settings in your specific environment.