Operators And Expressions In Python

Table of Contents

• Getting Started With Operators and Expressions
• The Assignment Operator and Statements
• Arithmetic Operators and Expressions in Python
• Comparison Operators and Expressions in Python
  • Comparison of Integer Values
  • Comparison of Floating-Point Values
  • Comparison of Strings
  • Comparison of Lists and Tuples
• Boolean Operators and Expressions in Python
  • Boolean Expressions Involving Boolean Operands
  • Evaluation of Regular Objects in a Boolean Context
  • Boolean Expressions Involving Other Types of Operands
  • Compound Logical Expressions and Short-Circuit Evaluation
  • Idioms That Exploit Short-Circuit Evaluation
  • Compound vs Chained Expressions
• Conditional Expressions or the Ternary Operator
• Identity Operators and Expressions in Python
• Membership Operators and Expressions in Python
• Concatenation and Repetition Operators and Expressions
• The Walrus Operator and Assignment Expressions
• Bitwise Operators and Expressions in Python
• Operator Precedence in Python
• Augmented Assignment Operators and Expressions
• Conclusion
• Frequently Asked Questions

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Watch Now This tutorial has a related video course created by the Real Python team. Watch it together with the written tutorial to deepen your understanding: Python Operators and Expressions

Python operators enable you to perform computations by combining objects and operators into expressions. Understanding Python operators is essential for manipulating data effectively.

This tutorial covers arithmetic, comparison, Boolean, identity, membership, bitwise, concatenation, and repetition operators, along with augmented assignment operators. You’ll also learn how to build expressions using these operators and explore operator precedence to understand the order of operations in complex expressions.

By the end of this tutorial, you’ll understand that:

• Arithmetic operators perform mathematical calculations on numeric values.
• Comparison operators evaluate relationships between values, returning Boolean results.
• Boolean operators create compound logical expressions.
• Identity operators determine if two operands refer to the same object.
• Membership operators check for the presence of a value in a container.
• Bitwise operators manipulate data at the binary level.
• Concatenation and repetition operators manipulate sequence data types.
• Augmented assignment operators simplify expressions involving the same variable.

This tutorial provides a comprehensive guide to Python operators, empowering you to create efficient and effective expressions in your code. To get the most out of this tutorial, you should have a basic understanding of Python programming concepts, such as variables, assignments, and built-in data types.

Free Bonus: Click here to download your comprehensive cheat sheet covering the various operators in Python.

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Python Operators and Expressions

Test your understanding of Python operators and expressions.

Getting Started With Operators and Expressions

In programming, an operator is usually a symbol or combination of symbols that allows you to perform a specific operation. This operation can act on one or more operands. If the operation involves a single operand, then the operator is unary. If the operator involves two operands, then the operator is binary.

For example, in Python, you can use the minus sign (-) as a unary operator to declare a negative number. You can also use it to subtract two numbers:

Python >>> -273.15 -273.15 >>> 5 - 2 3