Python Syntax

Python is a versatile and beginner-friendly programming language known for its clean and readable syntax. Let’s explore Python’s basic syntax with practical examples.

1. Variables and Data Types in Python

Python allows you to create variables without explicitly declaring their data type. The interpreter determines the type automatically.

Example: Variables and Data Types

# Assigning values to variables
name = "Dharmender"           # String
age = 25                 # Integer
height = 5.6             # Float
is_student = True        # Boolean

# Printing variable values
print("Name:", name)
print("Age:", age)
print("Height:", height)
print("Is Student:", is_student)

Output:

Name: Dharmender
Age: 25  
Height: 5.6  
Is Student: True  

2. Conditional Statements (if-else)

Conditional statements help execute code based on certain conditions.

Example: if-else Statement

score = 85

if score >= 90:
    grade = "A"
elif score >= 75:
    grade = "B"
else:
    grade = "C"

print("Grade:", grade)

Output:

Grade: B  

3. Loops in Python

Python supports two main types of loops: for and while.

Example: For Loop

# Printing numbers from 1 to 5 using a for loop
for i in range(1, 6):
    print(i)

Output:

1  
2  
3  
4  
5  

4. Functions in Python

Functions allow you to organize your code into reusable blocks.

Example: Defining and Calling a Function

def greet(name):
    return f"Hello, {name}!"

# Calling the function
message = greet("Dharmender")
print(message)

Output:

Hello, Dharmender!

5. Lists in Python

Lists are used to store multiple items in a single variable.

Example: List Operations

fruits = ["apple", "banana", "cherry"]

# Accessing elements
print("First fruit:", fruits[0])

# Adding a new element
fruits.append("orange")
print("Updated list:", fruits)

Output:

First fruit: apple  
Updated list: ['apple', 'banana', 'cherry', 'orange']  

Keep Learning 🙂