String Indexing and Slicing in Python In Python, strings are sequences of characters that can be accessed using indexing and slicing operations. Here’s a comprehensive explanation with examples: Indexing Strings in Python are zero-indexed, meaning the first character has index 0. python text = “Python” Index positions: text P y t h o n 0…

Strings in Python and Indexing Strings in Python are sequences of characters enclosed in single quotes (‘ ‘), double quotes (” “), or triple quotes (”’ ”’ or “”” “””). They are immutable sequences of Unicode code points used to represent text. String Characteristics Creating Strings python single_quoted = ‘Hello’ double_quoted = “World” triple_quoted = ”’This is…

Python Pattern Printing Using Nested For Loops 1. Right Triangle Pattern python n = 5 for i in range(1, n+1): for j in range(1, i+1): print(“*”, end=” “) print() “”” Output: * * * * * * * * * * * * * * * “”” 2. Inverted Right Triangle python n = 5…

break, continue, and pass in for loops with simple examples. These statements allow you to control the flow of execution within a loop. 1. break Statement The break statement is used to terminate the loop entirely. When break is encountered, the loop immediately stops, and execution continues with the statement immediately following the loop. Example:…

 Sum of the first n natural numbers  n = int(input(“Enter a positive integer: “)) sum = 0 for i in range(1, n + 1): sum += i print(f”The sum of the first {n} numbers is: {sum}”) Explanation: Example: If the user inputs 5, the program calculates: text 1 + 2 + 3 + 4 + 5 = 15…

The range() Function in Python The range() function is a built-in Python function that generates a sequence of numbers. It’s commonly used in for loops to iterate a specific number of times. Basic Syntax There are three ways to use range(): 1. range(stop) – One Parameter Form Generates numbers from 0 up to (but not including) the stop value. python for i in range(5):…

While Loops in Python with Examples A while loop in Python repeatedly executes a block of code as long as a specified condition remains true. It’s useful when you don’t know in advance how many times you’ll need to iterate. Basic Syntax python while condition: # code to execute while condition is true # don’t forget to…

String Comparison with Relational Operators in Python 💬⚖️ In Python, you can compare strings using relational operators (<, <=, >, >=, ==, !=). These comparisons are based on lexicographical (dictionary) order, which uses the Unicode code points of the characters. 📖 How String Comparison Works 🤔 Examples 💡 Python Important Notes 📌 String comparison is…

Conditional Statements in Python 🚦 Conditional statements in Python allow your program to make decisions based on specific conditions. Here’s a comprehensive overview: 1. if Statement ✅ Executes a block of code only if a condition is True. Python 2. if-else Statement ❓ Adds an alternative path when the if condition is False. Python 3….

In Python, operators are special symbols that perform operations on variables and values. They are categorized based on their functionality: ⚙️ 1. Arithmetic Operators ➕➖✖️➗ Used for mathematical operations: Python 2. Assignment Operators ➡️ Assign values to variables (often combined with arithmetic): Python 3. Comparison Operators ⚖️ Compare values → return True or False: Python…