When comparing Python Challenge vs Google's Python Class, the Slant community recommends Google's Python Class for most people. In the question“What are the best resources to learn Python?” Google's Python Class is ranked 2nd while Python Challenge is ranked 14th. The most important reason people chose Google's Python Class is:
This is a free class for people with a little bit of programming experience who want to learn Python.
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Pros
Pro Practical approach
The site simply presents a variety of interesting challenges that can be solved with a little bit of programming. (While any language works, the challenges work best with Python.)
Pro Great for people with little programming experience
This is a free class for people with a little bit of programming experience who want to learn Python.
Pro Good mix of theoretical and practical material
The class includes written materials, lecture videos, and lots of code exercises to practice Python coding. These materials are used within Google to introduce Python to people who have just a little programming experience.
Cons
Con Beginners will quickly find themselves overwhelmed
The levels get tricky pretty quickly for beginners. Additional resources will be required to pass all levels.
Con Some programming experience is required
While the courses cover the very basics of Python, basic understanding of programming is needed to start learning from Google's Python class.