September 2017
Intermediate to advanced
240 pages
5h 57m
English
Content preview from Learn More Python 3 the Hard Way: The Next Step for New Python ProgrammersBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Exercise 25. xargs
We are returning to challenge mode exercises and to warm you up you’ll be implementing xargs. This should be a straightforward implementation for you, but xargs can be complex as you’ll need to launch other programs to make it work. The Python module you’ll want to investigate is subprocess, which can run other programs from Python and collect their output. You’ll need to understand that module to complete xargs and many of the other projects later in the book, so study it well.
Exercise Challenge
Implement xargs for just 45 minutes so you can get something working that you can audit. Remember, this first hack is about getting the project going, not making something perfect. You’ll use subsequent steps in this project to refine ...
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