Library

Definition

A library in Python is a collection of pre-written code that can be used to optimize the development process. Libraries contain modules and functions that simplify complex tasks.

5 Must Know Facts For Your Next Test

1. Libraries are imported using the import statement in Python.
2. The standard library in Python provides many built-in modules like math, datetime, and os.
3. Third-party libraries can be installed using package managers like pip.
4. Libraries help in code reuse, making programs more efficient and easier to maintain.
5. Commonly used Python libraries for data analysis include NumPy, pandas, and matplotlib.

Review Questions

• How do you import a library in Python?
• Name three commonly used libraries from the Python standard library.
• What tool would you use to install third-party libraries in Python?

Related terms

Module: A file containing Python definitions and statements intended for use in other Python programs.

Function: A block of organized, reusable code that performs a single action within a program.

Package Manager: A tool that automates the process of installing, upgrading, configuring, and removing software packages.