Functional Programming in Python

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Functional programming is a style of programming that is characterized by short functions, lack of statements, and little reliance on variables. You will learn what functional programming is, and how you can apply functional programming in Python.

In this video course, we will learn what functional programming is, and how it differs from other programming styles, such as procedural and object-oriented programming. We will also learn why and when functional programming is useful, and why and when it makes programs unnecessarily complex. Then we go on to explore lambda expressions, which are short one-line functions, and are the purest form of functional programming that Python offers. Next, we will learn about higher-order functions: functions that accept other functions as argument, or return other functions as return values. In Python, higher-order functions are elegantly supported through decorators. We will also encounter important concepts from functional programming, such as monads, currying, statelessness, side-effects, memoization, and referential transparency; these concepts may initially seem odd to Python programmers, but we will see how they are elegantly supported by the language. In fact, many Python programmers already make use of concepts from functional programming without being aware of doing so.

All the videos in this course contain hands-on examples of the introduced concepts. We will also consider several different implementations of an interactive calculator to illustrate how you can use functional programming in a simple-but-complete program.

About The Author

Sebastiaan Mathôt currently works as assistant professor at the University of Groningen in the Netherlands. He is the lead developer at OpenSesame, which is an open-source, Python-based program for implementing psychology and neuroscience experiments. Sebastiaan is also the designer of DataMatrix, a Python library for numeric computing that is focused on elegance and readability.

Sebastiaan also gives regular workshops on using OpenSesame and Python for scientific purposes, and regularly publishes Python tutorials on his YouTube channel. As such, he has extensive experience in teaching Python and making advanced topics seem as easy as possible.

Who is the target audience?
  • This course is intended for developers who have a basic understanding of Python and want to expand their developer toolbox with important new techniques.

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