<@ULVA73B9P> How to run prefect as a script withou...
# ask-marvin
j
@Marvin How to run prefect as a script without connecting to the server in prefect 3
m
In Prefect 3, running a script without connecting to a server (like Prefect Cloud or a local Prefect server) can be done, but the Prefect 3.x documentation doesn't explicitly showcase a standalone, server-free execution. Here's a general approach on how to run Prefect in a more local or script-based mode: 1. Use Local Environment: You can run Prefect tasks and flows locally on your machine without explicitly setting up a connection to a Prefect server if you are not interested in orchestration features like storage, scheduling, and monitoring. 2. Flow Execution Mode: When you define and run flows, Prefect will handle the execution locally unless specified otherwise to connect to a server. Here is an example script to execute a simple flow locally:
Copy code
python
   from prefect import flow, task

   @task
   def say_hello():
       print("Hello, world!")

   @flow
   def hello_flow():
       say_hello()

   if __name__ == "__main__":
       hello_flow()
This script will run entirely locally without a connection to a server. The tasks and flows will execute sequentially as part of the Python process. 3. Avoid Server Features: Ensure that your flows are not using any features that require server interaction, such as remote storage, API task triggers, or external state storage. 4. Environment: When running scripts, ensure your execution environment has Prefect installed, and avoid commands like
prefect cloud login
which will try to establish a connection to Prefect Cloud. This local execution is perfect for small scripts, testing, or use cases where Prefect's orchestration isn't necessary. If you plan to use these capabilities without connecting to any server, make sure to rely on the Prefect Python API standalone features. For more information, you might want to explore available documentation and discussions, such as the Prefect forums or GitHub, though specific references in the official Prefect 3.x documentation for purely “server-free” execution are scarce. (You can visit the Prefect 3.x documentation here)