Printing output is one of the first things every Python programmer learns. Almost every Python program displays some kind of information, such as a welcome message, the result of a calculation, or the value stored in a variable.

Python provides a built-in function called print() to display information on the console.

The print() function can display:

• Text (strings)
• Numbers
• Variables
• Expressions
• Multiple values
• Python objects such as lists, tuples, and dictionaries

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Syntax #

print(*objects, sep=' ', end='\n')

Parameters #

Parameter	Description
*objects	One or more values to display.
sep	Separator inserted between multiple values. The default is a single space (' ').
end	Character(s) printed after the output. The default is a newline ('\n').

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Example 1: Printing a String #

main.py

print("Hello World")

Output #

Hello World

Explanation #

• print() is a built-in Python function used to display output on the console.
• "Hello World" is a string literal enclosed in double quotes.
• Python prints the string exactly as it appears.
• After printing the text, print() automatically moves the cursor to the next line.

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Example 2: Printing Different Data Types #

main.py

print(100)
print(99.95)
print(True)

Output #

100
99.95
True

Explanation #

• 100 is an integer.
• 99.95 is a floating-point number.
• True is a Boolean value.
• The print() function can display different data types without requiring any additional conversion.

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Example 3: Printing Variables #

main.py

name = "Alice"
age = 22

print(name)
print(age)

Output #

Alice
22

Explanation #

• The variable name stores the string "Alice".
• The variable age stores the integer 22.
• Passing a variable to print() displays the value stored in the variable.
• Variable names should not be enclosed in quotes. Otherwise, Python prints the text instead of the variable’s value.

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Example 4: Printing Text and Variables Together #

main.py

name = "Alice"
marks = 92

print("Student:", name)
print("Marks:", marks)

Output #

Student: Alice
Marks: 92

Explanation #

• The first argument is a string literal.
• The second argument is a variable.
• Multiple values are separated using commas.
• By default, Python inserts a single space between the printed values.

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Example 5: Printing Multiple Values #

main.py

print("Python", "Java", "C++")

Output #

Python Java C++

Explanation #

• Three strings are passed to the print() function.
• Python prints them in the same order.
• Since no separator is specified, a single space is automatically inserted between them.

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Example 6: Using the sep Parameter #

main.py

print("Python", "Java", "C++", sep=" | ")

Output #

Python | Java | C++

Explanation #

• sep stands for separator.
• It specifies what should be printed between multiple values.
• In this example, " | " is used instead of the default space.

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Example 7: Using the end Parameter #

main.py

print("Hello", end=" ")
print("World")

Output #

Hello World

Explanation #

• By default, every call to print() ends with a newline (\n).
• The end parameter changes what is printed after the output.
• Here, end=" " prints a space instead of moving to the next line.
• As a result, the second print() continues on the same line.

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Example 8: Printing the Result of an Expression #

main.py

a = 10
b = 20

print(a + b)
print(a * b)

Output #

30
200

Explanation #

• a + b is an arithmetic expression.
• a * b is another arithmetic expression.
• Python evaluates each expression before passing the result to print().
• Only the final result of the expression is displayed.

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Example 9: Printing Python Collections #

main.py

print([10, 20, 30])
print((1, 2, 3))
print({"name": "Alice", "age": 22})

Output #

[10, 20, 30]
(1, 2, 3)
{'name': 'Alice', 'age': 22}

Explanation #

• print() can display Python objects directly.
• The first statement prints a list.
• The second statement prints a tuple.
• The third statement prints a dictionary.
• Python automatically converts these objects into a readable format before displaying them.

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Common Mistakes #

1. Forgetting Quotes Around a String #

Incorrect

print(Hello)

Output #

NameError: name 'Hello' is not defined

Reason

Python assumes Hello is a variable. Since no such variable exists, a NameError is raised.

Correct

print("Hello")

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2. Forgetting Parentheses #

Incorrect

print "Hello"

Output #

SyntaxError: Missing parentheses in call to 'print'

Reason

In Python 3, print is a function and must always be called using parentheses.

Correct

print("Hello")

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3. Printing the Variable Name Instead of Its Value #

Incorrect

name = "Alice"

print("name")

Output #

name

Reason

The text "name" is a string literal, so Python prints it exactly as written.

Correct

name = "Alice"

print(name)

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4. Confusing sep and end #

Incorrect Expectation

print("A", "B", end="-")

Output #

A B-

Reason

The end parameter controls what is printed after the output, not between the values.

Correct

print("A", "B", sep="-")

Output #

A-B

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Key Points to Remember #

• print() is the built-in function used to display output on the console.
• It can print strings, numbers, variables, expressions, and Python objects.
• Multiple values can be printed in a single print() statement.
• By default, values are separated by a single space.
• The sep parameter changes the separator between multiple values.
• The end parameter changes what is printed after the output.
• Strings must always be enclosed in quotes.
• Variables should be written without quotes.
• print() automatically converts Python objects into a readable format before displaying them.