How to import environment variables inside an asset ?

To access environment variables in your Dagster code, including within an asset, you can use the standard Python

os

module. Here's how you can do it:

python import os  database_name = os.getenv("DATABASE_NAME")

This code snippet will retrieve the value of the environment variable

DATABASE_NAME

. If the environment variable is not set,

os.getenv

will return

None

. If you want to provide a default value in case the environment variable is not set, you can pass it as the second argument to `os.getenv`:

python database_name = os.getenv("DATABASE_NAME", "default_value")

In this case, if

DATABASE_NAME

is not found in the environment,

database_name

will be set to

"default_value"

. Remember that for this to work, the environment variable must be set in the environment where your Dagster code is running. If you're using Dagster Cloud, you can set environment variables through the UI, and they will be available to your code when it's executed in the cloud environment. If you're running Dagster locally or on your own infrastructure, you'll need to ensure the environment variables are set in your operating system or passed to Dagster in the way appropriate for your deployment method. For more detailed guidance and examples on using environment variables in Dagster, you can refer to the documentation on using environment variables and secrets in Dagster code.