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Introduction_to_Python a great programming language
- 1. Introduction to Python Overview of Python - High-level language - Interpreted & Object-oriented - Easy syntax, readability - Open source & widely used
- 2. History of Python Developed by Guido van Rossum in 1991 Open-source, supported by Python Software Foundation Latest versions widely used: Python 3.x
- 3. Features of Python 1. Simple & Easy to Learn 2. Cross-platform 3. Free & Open Source 4. Rich Standard Library 5. Dynamically Typed
- 4. Applications of Python 1. Web Development 2. Data Science 3. Machine Learning 4. Automation/Scripting 5. Game Development 6. IoT & More
- 5. Setting up Python Steps: 1. Download from python.org 2. Install Python 3.x 3. Set Environment PATH 4. Verify using 'python --version'
- 6. Python Data Types Basic Types: - int, float, complex - str, bool - list, tuple, set, dict Dynamic Typing feature in Python
- 7. Variables in Python Rules: - Must start with letter or underscore - Case-sensitive - Cannot use keywords Examples: x = 10 y = 'Hello'
- 8. Operators in Python 1. Arithmetic: + - * / % ** // 2. Relational: == != > < >= <= 3. Logical: and, or, not 4. Assignment: =, +=, -= 5. Membership & Identity
- 9. id() and type()functions id(): Returns memory location of object Example: id(x) type(): Returns datatype of object Example: type(x)
- 10. Coding Standards FollowPEP-8 Guidelines: - Meaningful variable names - Indentation: 4 spaces - Commenting & Documentation - Consistent Style
- 11. Input in Python Function: input() Always returns string Example: name = input('Enter name: ') print('Hello', name)
- 12. Output in Python Function: print() Supports multiple arguments, sep, end Example: print('Hello', name, sep='-', end='!')
- 13. Control Structures DecisionMaking & Loops - if, elif, else - for loop - while loop - Nested loops & decisions
- 14. If-Else Statement Syntax: if condition: statements else: statements Example: Check even or odd number
- 15. Elif Statement Syntax: if condition1: statements elif condition2: statements else: statements Used for multiple conditions
- 16. Nested If ifcondition1: if condition2: statements Example: Check if number is positive & even
- 17. Iteration: for loop for variable in sequence: statements Used to iterate over list, tuple, string Example: for i in range(5): print(i)
- 18. Iteration: while loop while condition: statements Example: Print numbers 1 to 10 using while loop
- 19. Break, Continue, Pass break: Exit loop immediately continue: Skip current iteration pass: Do nothing, placeholder
- 20. Summary Python Basicscovered: - Introduction & Setup - Variables & Operators - id() & type() - Coding Standards - Input/Output - Control Structures