Introduction_to_Python a great programming language

HarishBedi4 14 views 20 slides Aug 27, 2025
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About This Presentation


Python is a high-level, interpreted, general-purpose programming language. Created by Guido van Rossum and first released in 1991, Python emconcise syntax.phasizes code readability with its clear and
ey Characteristics:

Interpreted:
Python code is executed line by line by an interpreter, ...


Slide Content

Introduction to Python Overview of Python - High-level language - Interpreted & Object-oriented - Easy syntax, readability - Open source & widely used

History of Python Developed by Guido van Rossum in 1991 Open-source, supported by Python Software Foundation Latest versions widely used: Python 3.x

Features of Python 1. Simple & Easy to Learn 2. Cross-platform 3. Free & Open Source 4. Rich Standard Library 5. Dynamically Typed

Applications of Python 1. Web Development 2. Data Science 3. Machine Learning 4. Automation/Scripting 5. Game Development 6. IoT & More

Setting up Python Steps: 1. Download from python.org 2. Install Python 3.x 3. Set Environment PATH 4. Verify using 'python --version'

Python Data Types Basic Types: - int, float, complex - str, bool - list, tuple, set, dict Dynamic Typing feature in Python

Variables in Python Rules: - Must start with letter or underscore - Case-sensitive - Cannot use keywords Examples: x = 10 y = 'Hello'

Operators in Python 1. Arithmetic: + - * / % ** // 2. Relational: == != > < >= <= 3. Logical: and, or, not 4. Assignment: =, +=, -= 5. Membership & Identity

id() and type() functions id(): Returns memory location of object Example: id(x) type(): Returns datatype of object Example: type(x)

Coding Standards Follow PEP-8 Guidelines: - Meaningful variable names - Indentation: 4 spaces - Commenting & Documentation - Consistent Style

Input in Python Function: input() Always returns string Example: name = input('Enter name: ') print('Hello', name)

Output in Python Function: print() Supports multiple arguments, sep, end Example: print('Hello', name, sep='-', end='!')

Control Structures Decision Making & Loops - if, elif, else - for loop - while loop - Nested loops & decisions

If-Else Statement Syntax: if condition: statements else: statements Example: Check even or odd number

Elif Statement Syntax: if condition1: statements elif condition2: statements else: statements Used for multiple conditions

Nested If if condition1: if condition2: statements Example: Check if number is positive & even

Iteration: for loop for variable in sequence: statements Used to iterate over list, tuple, string Example: for i in range(5): print(i)

Iteration: while loop while condition: statements Example: Print numbers 1 to 10 using while loop

Break, Continue, Pass break: Exit loop immediately continue: Skip current iteration pass: Do nothing, placeholder

Summary Python Basics covered: - Introduction & Setup - Variables & Operators - id() & type() - Coding Standards - Input/Output - Control Structures