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Python Introduction

Start your Python journey.

Python Language

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Fundamentals

  1. 1 Introduction
  2. 2 Setup Installation
  3. 3 Program Structure
  4. 4 Data Types & Variables
  5. 5 Reserved Keywords
  6. 6 Operators

Control Flow

  1. 7 Flow Control
  2. 8 if-else Statement
  3. 9 if-elif-else Statement
  4. 10 for-in Loop
  5. 11 while Loop
  6. 12 Jump Statements

String

  1. 13 Python String
  2. 14 String Manipulation

Functions

  1. 15 Function Calling
  2. 16 Function Arguments
  3. 17 Function Return
  4. 18 Lambda Function
  5. 19 Scope Variables

Data Structures

  1. 20 Lists: Methods & Slicing
  2. 21 Dictionaries: Operations
  3. 22 Tuples: Immutability
  4. 23 Sets: Operations

Modules

  1. 24 Importing Modules
  2. 25 Concept of pip
  3. 26 Commonly Used Libraries

Arrays

  1. 27 Array Module
  2. 28 Array Dimensions

Files

  1. 29 File I/O
  2. 30 Files Modifying
  3. 31 File Errors Handling

OOP

  1. 32 OOP Concepts

Machine Learning

  1. 33 Data Science
  2. 34 Deep Learning
  3. 35 Machine Learning
  4. 36 Build AI Models

Exception Handling

  1. 37 try-except-finally Blocks
  2. 38 Custom Exceptions

Asynchronous

  1. 39 async & await

QnA

  1. 40 Interview QnA

• Recommendation: Before you start learning Python, you should have a basic understanding of Computer Programming terminologies. A concept of any programming language, e.g., C and C++, is a plus.

Python Language

Python is a high-level, interpreted, and general-purpose programming language known for its simplicity and readability. It was created by Guido van Rossum at CWI in the Netherland, and first released in 1991.

Throughout its basic information, Python is also known for its readability and expressiveness, with an indentation-based structure that enforces clean code. It supports functional programming and dynamic typing, promoting flexibility. Python is object-oriented, interactive, and easily extensible, making it versatile for various applications. Here's a brief introduction and history of Python:

Introduction:

1. General-Purpose Language: Python is a versatile language used for various purposes, including web development, data analysis, artificial intelligence, scientific computing, automation, and more.

2. Readability: Python emphasizes code readability and a clean syntax, making it easy for developers to write and maintain code.

3. Interpreted Language: Python is an interpreted language, which means that the code is executed line by line, making it suitable for rapid development and prototyping.

4. Dynamic Typing: Python is dynamically typed, allowing for flexibility in variable types during runtime.

5. Extensive Standard Library: Python comes with a large standard library that supports many common programming tasks, reducing the need for developers to write additional code.

6. Cross-Platform: Python is designed to be cross-platform, meaning that code written in Python can run on various operating systems with little or no modification.

⤏ Python's simplicity, readability, and extensive libraries have contributed to its widespread adoption, making it a favorite among developers for a wide range of applications.

History:

1. Creation & Early Development:

  • Guido van Rossum began working on Python in the late 1980s, and the first official Python release, version 0.9.0, came in February 1991.
  • Python 1.0 was released in January 1994 and included features like lambda, map, filter, and reduce.

2. Python 2.x vs. Python 3.x:

  • In 2000, Python 2.0 was released with various improvements. However, a more significant transition occurred with the release of Python 3.0 in 2008, which included backward-incompatible changes to enhance the language.
  • The coexistence of Python 2.x and Python 3.x led to a gradual shift, and in 2020, Python 2 reached its end of life.

3. Popularity & Community:

  • Python gained popularity due to its readability, simplicity, and the rise of web development, data science, and machine learning.
  • A vibrant and supportive community evolved, contributing to the development of third-party libraries and frameworks.

4. Recent Developments:

  • Python continues to evolve with regular releases. The Python Software Foundation oversees its development, and the language remains a popular choice for a wide range of applications.

5. Success Stories:

  • Python is widely used in various industries and has been employed by organizations like Google, NASA, Instagram, Spotify, and many others.

⤏ Today, Python is one of the most widely used programming languages, known for its simplicity, versatility, and community support.

Facts about Python Language:

ABC was a programming language developed at CWI (Centrum Wiskunde & Informatica) in the Netherlands during the 1980s. Guido van Rossum, the creator of Python, was involved in the development of ABC.
There are two major versions of Python - Python 2 and Python 3. Python 3 is the current version, and Python 2 is no longer officially supported.
Python supports object-oriented programming, and almost everything in Python is an object, including numbers, strings, and functions.
Python is dynamically typed, meaning you don't need to specify the data type of a variable explicitly. The interpreter infers the type during runtime.
Python is an interpreted language, but it uses a compilation step to generate bytecode, which is then executed by the Python interpreter.
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