Python Tutorial

Introduction Python Features Python Applications System requirements for Python Python Installation Python Basics Python Variables Python Data Types Python IDE Python Keywords Python Operators Python Comments Python Pass Statement

Python Conditional Statements

Python if Statement Python elif Statement Python If-else statement Python Switch Case

Python Loops

Python for loop Python while loop Python Break Statement Python Continue Statement Python Goto Statement

Python Arrays

Python Array Python Matrix

Python Strings

Python Strings Python Regex

Python Built-in Data Structure

Python Lists Python Tuples Python Lists vs Tuples Python Dictionary Python Sets

Python Functions

Python Function Python min() function Python max() function Python User-define Functions Python Built-in Functions Anonymous/Lambda Function in Python

Python File Handling

Python File Handling Python Read CSV Python Write CSV Python Read Excel Python Write Excel Python Read Text File Python Write Text File Read JSON File in Python

Python Exception Handling

Python Exception Handling Python Errors and exceptions Python Assert

Python OOPs Concept

OOPs Concepts in Python Classes & Objects in Python Inheritance in Python Polymorphism in Python Python Encapsulation Python Constructor Static Variables in Python Abstraction in Python

Python Iterators

Iterators in Python Yield Statement In Python

Python Generators

Python Generator

Python Decorators

Python Decorator

Python Functions and Methods

Python Built-in Functions Python String Methods Python List Methods Python Dictionary Methods Python Tuple Methods Python Set Methods

Python Modules

Python Modules Python Datetime Module Python Calendar Module  

Python MySQL

Python MySQL Python MySQL Update Operation Python MySQL Delete Operation

Python MongoDB

Python MongoDB

Python Data Structure Implementation

Python Stack Python Queue Python Hash Table Python Graph

Python Advance Topics

Speech Recognition in Python Face Recognition in Python Python Rest API Python Command Line Arguments Python JSON Python Virtual Environment Type Casting in Python Collections in python Python Enumerate Python Debugger Python DefaultDict

Misc

Python PPTX Python Pickle Python Seaborn Python Coroutine Python EOL Python Infinity Python math.cos and math.acos function Python Project Ideas Based On Django Reverse a String in Python Reverse a Number in Python Python Word Tokenizer Python Trigonometric Functions Python try catch exception GUI Calculator in Python Implementing geometric shapes into the game in python Installing Packages in Python Python Try Except Python Sending Email Socket Programming in Python Python CGI Programming Python Data Structures Python abstract class Python Compiler Python K-Means Clustering List Comprehension in Python3 NSE Tools In Python Operator Module In Python Palindrome In Python Permutations in Python Pillow Python introduction and setup Python Functionalities of Pillow Module Python Argmin Python whois Python JSON Schema Python lock Return Statement In Python Reverse a sentence In Python tell() function in Python Why learn Python? Write Dictionary to CSV in Python Write a String in Python Binary Search Visualization using Pygame in Python Latest Project Ideas using Python 2022 Closest Pair of Points in Python ComboBox in Python Python vs R Python Ternary Operators Self in Python Python vs Java Python Modulo Python Packages Python Syntax Python Uses Python Logical Operators Python Multiprocessing Python History Difference between Input() and raw_input() functions in Python Conditional Statements in python Confusion Matrix Visualization Python Python Algorithms Python Modules List Difference between Python 2 and Python 3 Is Python Case Sensitive Method Overloading in Python Python Arithmetic Operators Design patterns in python Assignment Operators in Python Is Python Object Oriented Programming language Division in Python Python exit commands Continue And Pass Statements In Python Colors In Python Convert String Into Int In Python Convert String To Binary In Python Convert Uppercase To Lowercase In Python Convert XML To JSON In Python Converting Set To List In Python Covariance In Python CSV Module In Python Decision Tree In Python Difference Between Yield And Return In Python Dynamic Typing In Python Abstract design pattern in python Builder design pattern in python Prototype design pattern in Python Creational design patterns in Python

How to

How to convert integer to float in Python How to reverse a string in Python How to take input in Python How to install Python in Windows How to install Python in Ubuntu How to install PIP in Python How to call a function in Python How to download Python How to comment multiple lines in Python How to create a file in Python How to create a list in Python How to declare array in Python How to clear screen in Python How to convert string to list in Python How to take multiple inputs in Python How to write a program in Python How to compare two strings in Python How to create a dictionary in Python How to create an array in Python How to update Python How to compare two lists in Python How to concatenate two strings in Python How to print pattern in Python How to check data type in python How to slice a list in python How to implement classifiers in Python How To Print Colored Text in Python How to develop a game in python How to print in same line in python How to create a class in python How to find square root in python How to import numy in python How to import pandas in python How to uninstall python How to upgrade PIP in python How to append a string in python How to open a file in python

Sorting

Python Sort List Sort Dictionary in Python Python sort() function Python Bubble Sort

Programs

Factorial Program in Python Prime Number Program in Python Fibonacci Series Program in Python Leap Year Program in Python Palindrome Program in Python Check Palindrome In Python Calculator Program in Python Armstrong Number Program in Python Python Program to add two numbers Anagram Program in Python Even Odd Program in Python GCD Program in Python Python Exit Program Python Program to check Leap Year Operator Overloading in Python Pointers in Python Python Not Equal Operator Raise Exception in Python Salary of Python Developers in India What is a Script in Python Singleton design pattern in python

Python Modules List

Python is like an ocean. If you have been working with Python, you might’ve already heard the word module. When we solve a problem in mathematics, there will be several methods to solve the problem. But, one method will be the best one, and it will be based on the time to solve, simplicity, and accuracy. While programming, programmers also need such solutions. When a programmer first tries to solve a problem, he uses all the methods and analyzes the best method considering many factors and scenarios. The program can be lengthy. In Python, all such programs that a typical Python-programmer will need while coding is stored in modules. So, a module is a file with a set of functions, classes, variables, and statements with logic that we can include in our programs. The programmer need not write the whole code, instead he can include the already developed modules and can use the functionality.

Important points:

  1. Related logics are grouped simultaneously and placed into a file called the modules. Hence, every module consists of similar codes. This improves the organization of a code when we use the modules in our program.
  2. To use the logic specified inside a module in our code, we need to import the module using the import statement for the interpreter to recognize and implement the logic.
    Syntax:

    import module_name
  3. When we import a module into our program, the whole module will be imported. To directly import a function inside the module, we can use the syntax:
    import module_name. function_name
    or
    from module_name import function_name
  4. If we want to import all the functions, variables, and constants of a module, we can use an asterisk:
    from module_name import *
  5. If the module specified by the user does not exist, the interpreter raises an error ImportError: No module named “module_name."
  6. We can even create custom modules by importing the file in which the function or the logic we need is written into any program.

This is the basic idea of modules. Now, let us see the list of modules a programmer will need in his programming journey one or the other time. There are about 200 modules in Python, varying with the distribution. These modules are organized in alphabetical order on the official website - here.

These are some frequently used modules and libraries in Python:

ModuleUse
NumpyIt provides us with several multi-dimensional array processing functions.
PandasThe best library of modules with data analysis, data science, and machine learning solutions.
MatplotlibContains data visualization and plotting functions and is an extension to the numpy library.
SeabornIt is based on matplotlib. Also used for plotting graphs to visualize the vast amount of data.
Scikit-learnBest library for machine learning applications. Contains a lot of tools for statistics and ml.

More modules:

MathCmathUuidPyGtkPsycoVisual Python
PyperclipItertoolsIpaddressPyQtPyInstallerDjango
EmojiBisectGettextTkinterPy2appWeb2py
HowdoiStatPickleWxPythonPyObjCFlask
WikipediaLoggingRePyjamasDesktopPyWin32PyQuery
AntigravityHtmlCopyPySimpleGUIPy2exeOpenflow
UrllibWebbrowserfunctoolsPILPyXGoflow
TurtleftplibPygamePyqtgraphSciPyPyIMSL

Modules vs. Libraries vs. Packages:

When searching for modules, we might run into many libraries and packages. These three words are used synonymously sometimes. But, these are not the same words.

ModulesLibrariesPackages
A simple Python file ends with a .py extension.Collection of already compiled programs to execute in our codes.Collection of similar modules in one place.

A module is a base here. These are normal Python files that contain some code. We save the file and use them whenever we want in our programs. Based on the type and the uses of the code, modules are stored in packages.

Packages and libraries are more exchangeable words. A package can have sub-packages in it. In a package, there will be a __init__. py file defines it as a package, and the interpreter recognizes it as a package.

Like the generic term, a library is the collection of books and resources; in Python, a library is the collection of already made codes, documentation, classes, values, etc. The Python standard library contains the syntax and semantics of the tokens we use in Python, like if-else, loops, etc. In-built modules, that contain the basic functionality of Python are stored in the Python standard library. Python libraries are generally written in the C programming language.



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