Java is object oriented and Haskell is functional. How about Python? Is it really OO with free-standing functions and weak encapsulation? Python has lambdas and closures, but is it functional? Are these useful questions?

In the last 10 years a new approach to the study of programming languages has emerged: focus on features, not paradigms. This approach offers more direct, practical advice for programmers learning a new language, taking up coding idioms, and choosing suitable design patterns.

Topics covered:

• The problem with programming paradigms, and categories in general
• The language features approach
• Language features and design patterns
• Case study: Strategy pattern with first-class functions
• Conclusion and key take-aways