Python Assignments, Expressions, Prints

Python is a popular programming language known for its simplicity and readability. Even if you have no coding background, you can start learning Python easily. In this tutorial you will learn about Python assignments, expressions, and prints.

This tutorial covers the basics:

Assignment: Storing data in variables.
Expressions: Performing calculations or evaluating logic.
Print Statements: Displaying information on the screen.

1. Assignment in Python

An assignment means giving a value to a variable. A variable is like a container where you can store data, such as numbers or text.

Syntax:

variable_name = value

Examples:

# Assigning numbers to variables
x = 10
y = 20

# Assigning text (called a string) to a variable
name = "Alice"

# Assigning a decimal number
price = 99.99

# Assigning a calculation (expression)
total = x + y

Explanation:

x now holds the value 10.
name holds the text "Alice".
total is calculated as 10 + 20, so its value is 30.

2. Expressions in Python

An expression is anything that evaluates to a value. It can involve numbers, text, or even logical conditions.

Mathematical Expressions:

a = 5
b = 3

# Addition
sum_result = a + b  # 8

# Subtraction
difference = a - b  # 2

# Multiplication
product = a * b  # 15

# Division
quotient = a / b  # 1.6667

Logical Expressions:

Logical expressions compare values and return True or False.

x = 10
y = 20

is_equal = (x == y)  # False
is_greater = (x > y)  # False
is_smaller = (x < y)  # True

Combining Expressions:

You can mix expressions together.

final_value = (x + y) * 2 - 5  # 55

3. Print Statements in Python

The print() function is used to display information on the screen. This is how your program communicates with you!

Basic Printing:

print("Hello, World!")  # Displays: Hello, World!

Printing Variables:

name = "Alice"
age = 25
print("Name:", name)  # Displays: Name: Alice
print("Age:", age)    # Displays: Age: 25

Combining Text and Variables:

price = 99.99
print("The price is:", price)  # Displays: The price is: 99.99

Using f-strings for Better Formatting:

An f-string allows you to insert variables directly into text.

name = "Alice"
age = 25
print(f"My name is {name} and I am {age} years old.")
# Displays: My name is Alice and I am 25 years old.

Putting It All Together

Let’s combine assignment, expressions, and print statements into a full example.

# Assign values
x = 10
y = 5

# Perform calculations
sum_result = x + y
product_result = x * y

# Print results
print("Sum of x and y is:", sum_result)         # Displays: Sum of x and y is: 15
print("Product of x and y is:", product_result) # Displays: Product of x and y is: 50

# Combine with f-strings
print(f"The sum of {x} and {y} is {sum_result}, and their product is {product_result}.")
# Displays: The sum of 10 and 5 is 15, and their product is 50.

Sample Outputs

Here’s what you’d see on your screen if you ran the above code:

Sum of x and y is: 15
Product of x and y is: 50
The sum of 10 and 5 is 15, and their product is 50.