Replace hello_world by a more representative/practical example for climate scientists

[kathoef]

staying with a string-type example: we could use a function that is supposed to act only on a certain type and/or group of certain file types?

[willirath]

So we could go for

def get_filename(dataset_name, file_type):
    """Return `dataset`.`file_type`."""
    return dataset + "." + file_type

with possible extensions to

• check for string inputs
• ensure that there's a dot in there
• ...