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Python Modulo Operator – What Does the Percent (%) Sign Mean in python

June 5, 2023 by Bijay Kumar

In this Python tutorial, we will discuss everything about, the Python modulo operator, and what does the percent (%) sign mean in Python.

Table of Contents

  • What does the percent sign mean in Python?
  • Modulo Operator in Python
  • Percent symbol (%) for string formatting
  • Conclusion

What does the percent sign mean in Python?

In Python, the percent sign is called the modulo operator ” % ” which returns the remainder after dividing the left-hand operand by the right-hand operand.

Example:

value1 = 8
value2 = 2
remainder = value1 % value2
print(remainder)

Once you will print ” remainder “ then the output will appear as a “ 0 ”. Here, the modulo operator ” % “ returns the remainder after dividing the two numbers.

You can refer to the below screenshot:

What does the percent sign mean in python
percentage symbol mean in python

Let us explore, different uses of the percent sign in Python.

Modulo Operator in Python

In Python, the percent sign (%) is frequently used as the modulo operator. The modulo operator calculates the remainder of a division operation.

Let’s take an example:

remainder = 10 % 3
print(remainder)  # Output: 1

In the above example, 10 % 3 computes the remainder when 10 is divided by 3. Here, 10 is the dividend, 3 is the divisor, and 1 is the remainder. Thus, the operation 10 % 3 returns 1.

This operation is particularly useful in programming scenarios where you need to cycle through a sequence. It can also be used to determine if a number is even or odd. For instance:

number = 7
if number % 2 == 0:
    print(f"{number} is even.")
else:
    print(f"{number} is odd.")
# Output: 7 is odd.

In the above code, we use the modulo operator to check if the number is divisible by 2 (i.e., if it’s an even number). If number % 2 equals 0, then the number is even; otherwise, it’s odd. You can see the output below:

What does the percent sign mean in python

Percent symbol (%) for string formatting

Percentage sign in Python is also used for string formatting. It is used to inject data into your strings. The % operator takes a format string and an argument or tuple of arguments. The format string includes %d for integers, %s for strings, and %f for floating-point numbers.

Here’s an example:

name = 'John'
age = 30

print('Hello, my name is %s and I am %d years old.' % (name, age))
# Output: Hello, my name is John and I am 30 years old.

In the example, %s is replaced by the string ‘John’ and %d is replaced by the integer 30.

Conclusion

The percent sign (%) in Python serves multiple functionalities that can significantly aid in enhancing the efficiency of your code. From acting as a modulo operator to offering a way for string formatting, the % operator proves to be quite a versatile tool in the Python programming language. I hope you got an idea about, percentage symbol in Python.

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Bijay - Python Expert
Bijay Kumar

I am Bijay Kumar, a Microsoft MVP in SharePoint. Apart from SharePoint, I started working on Python, Machine learning, and artificial intelligence for the last 5 years. During this time I got expertise in various Python libraries also like Tkinter, Pandas, NumPy, Turtle, Django, Matplotlib, Tensorflow, Scipy, Scikit-Learn, etc… for various clients in the United States, Canada, the United Kingdom, Australia, New Zealand, etc. Check out my profile.

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