dedl-stack-client 2025.5.1

Python client for DEDL Stack services

DestinE Data Lake (DEDL) Stack Client

Python client to facilitate the use of DestinE Data Lake Stack Service.

Installation

To install the latest version of the client library run:

pip install dedl-stack-client

Usage

Dask

An example notebook is provided here. The client will guide a user through the needed authentication flow and will automatically create dedicated Dask cluster on each DEDL bridge.

from dedl_stack_client.authn import DaskOIDC
from dedl_stack_client.dask import DaskMultiCluster
from rich.prompt import Prompt

myAuth = DaskOIDC(username=Prompt.ask(prompt="Username"))
myDEDLClusters = DaskMultiCluster(auth=myAuth)
myDEDLClusters.new_cluster()

The DaskMultiCluster class provides an abstraction layer to interact with the various clusters on each DEDL bridge. Computations can be directed to the different Dask clusters by making use of a context manager as given in the following.

with myDEDLClusters.as_current(location="central") as myclient:
    myclient.compute(myarray)
with myDEDLClusters.as_current(location="lumi") as myclient:
    myclient.compute(myarray)
with myDEDLClusters.as_current(location="leonardo") as myclient:
    myclient.compute(myarray)