One of the first Python lines I learned was opening files using the with keyword:

with open("example.txt", "r") as file:
    content = file.read()
    print(content)

# Automatically close file after the above block
print("File closed")

The neat thing is that you can use the file within with and it will automatically close down once exiting the block. A simple way to teach an approach that's just as useful with db connections and other clients.

Today I happened upon @contextmanager, an elegent way to implement this type of behavior with your own classes and methods:

@contextmanager
def datastore():
    try:
        client = ds.connect()
        # Implement logic in the while block
        yield
        
    # proceed after the while block concludes
    finally:
        client.disconnect()

This simple decorator then allows usage in a with block:

with datastore() as dsc:
    dsc.get(...)

# Closed

That encapsulates up what otherwise would be a great deal of setup.

The elegance is, quite simply, very Pythonic!