August 2019
Beginner
482 pages
12h 56m
English
Content preview from Learn Python by Building Data Science Applications
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Chapter 16
What are the benefits of writing tasks rather than using simple scripts?
Scripts are great for simple and one-off jobs. If you have a repetitive task to do – or even more so if there is a set of tasks that depend on each other, and you need to ensure that they don't run without a dependency missing, or that they won't override (or append to) existing data—then ETL pipelines and tasks are for you. As a free bonus, frameworks such as Luigi have a lot of utility code that helps to build pipelines – you won't need to write a solution for writing to S3 or a database, or parse a command-line command.
What is the base element of Luigi jobs?
The base element of Luigi jobs (pipelines) is the Task class. All the business logic of a task ...
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