Chapter 4. The absolute basics

This chapter covers

  • Indenting and block structuring
  • Differentiating comments
  • Assigning variables
  • Evaluating expressions
  • Using common data types
  • Getting user input
  • Using correct Pythonic style

This chapter describes the absolute basics in Python: assignments and expressions, how to type a number or a string, how to indicate comments in code, and so forth. It starts out with a discussion of how Python block structures its code, which is different from any other major language.

4.1. Indentation and block structuring

Python differs from most other programming languages because it uses whitespace and indentation to determine block structure (that is, to determine what constitutes the body of a loop, the else clause ...

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