When comparing Python Programming Fundamentals vs exercism.org, the Slant community recommends exercism.org for most people. In the question“What are the best resources to learn Python?” exercism.org is ranked 4th while Python Programming Fundamentals is ranked 29th. The most important reason people chose exercism.org is:
Rather than merely test for code correctness, Exercism uses peer review to improve general programming techniques. Users are encouraged to comment on others' solutions, and refine their own based on feedback.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Practical
Fun project to build as you learn.
Pro Beginner-friendly
Excellent for complete beginners with no previous experience.

Pro Human review and feedback
Rather than merely test for code correctness, Exercism uses peer review to improve general programming techniques. Users are encouraged to comment on others' solutions, and refine their own based on feedback.

Pro Practice with production tools
Unlike many code practice websites, Exercism requires the user to develop and test entirely offline, submitting only the finished code. This promotes familiarity with essential tools and workflow, not just the bare language.
Cons
Con Uses commercial software to teach the language
One of the first things the guide asks you to do is create an account with Nitrous.io to use their cloud IDE. While Nitrous has a free plan, the practice of doing that is questionable.

Con Custom commandline client
Exercism requires using a CLI utility to fetch and submit exercises. This is inconvenient compared to web-only alternatives, and poses an additional barrier to entry for some users.
