Python Modules (2024)

FAQs

What are the modules in Python? ›

In Python, Modules are simply files with the “. py” extension containing Python code that can be imported inside another Python Modules Operations Program. In simple terms, we can consider a module to be the same as a code library or a file that contains a set of functions that you want to include in your application.

The Python standard library contains well over 200 modules, although the exact number varies between distributions.

In Python, both modules and packages organize and structure the code but serve different purposes. In simple terms, a module is a single file containing Python code, whereas a package is a collection of modules that are organized in a directory hierarchy.

To check all the installed Python modules, we can use the following two commands with the 'pip': Using 'pip freeze' command. Using 'pip list command.

NumPy is the fundamental package for scientific computing in Python.

pandas is a Python package providing fast, flexible, and expressive data structures designed to make working with “relational” or “labeled” data both easy and intuitive. It aims to be the fundamental high-level building block for doing practical, real-world data analysis in Python.

That's not how it works, you don't have to learn all libraries or modules. No one does. We learn what we need for our job. Instead focus on building something, you may have to use some libraries, and also learn a bit of them.

Python Main Module

Python has no main function or method. Instead, there is a main module. The main module is the source file that runs first. Whatever file you give to the interpreter at startup becomes main.

Modules are Python files that are intended to be imported into scripts and other modules so that their defined members—like classes and functions—can be used. 04:41 Packages are a collection of related modules that aim to achieve a common goal.

Is every Python file a module? ›

Simply put, a module is a file consisting of Python code. It can define functions, classes, and variables, and can also include runnable code. Any Python file can be referenced as a module. A file containing Python code, for example: test.py , is called a module, and its name would be test .

In Python, when you import a module, you get the module. Unlike some other languages, there is no special relationship between modules and classes. When you write a module, you're allowed to have a class with the same name. You're also allowed to have just one class with a different name.

A module can define functions, classes, and variables. A module can also include runnable code. Grouping related code into a module makes the code easier to understand and use. It also makes the code logically organized.

Modules in Python are simply files with the “. py” extension that contain Python code such as Python functions, methods, classes, or variables that may be imported into another Python program. A Python module is a file that contains Python commands and definitions.

The Python Modulo, represented by the symbol %, is a mathematical operator that calculates the remainder of a division operation. Here's a simple example: 10 % 3 would return 1 because dividing 10 by 3 gives you a quotient of 3 and a remainder of 1. The Modulo Operator is not just limited to integers.

types — Dynamic type creation and names for built-in types. This module defines utility functions to assist in dynamic creation of new types. It also defines names for some object types that are used by the standard Python interpreter, but not exposed as builtins like int or str are.

The library contains built-in modules (written in C) that provide access to system functionality such as file I/O that would otherwise be inaccessible to Python programmers, as well as modules written in Python that provide standardized solutions for many problems that occur in everyday programming.