How To Compare Strings In Python

Comparing strings is an important and common task in programming, including Python. In this tutorial, we will learn how to compare strings in Python, using different methods such as comparison operators, the strcmp() function, and the is operator.

By the end of this tutorial, you’ll be able to compare strings in Python effectively and efficiently. So, let’s get started!

Step 1: Compare Strings Using Python’s Comparison Operators

Python provides a variety of comparison operators to compare strings. These operators can be used directly to determine if two strings are equal, if one string is greater than or less than the other, and so on.

The common comparison operators are:

  1. == (Equal)
  2. != (Not equal)
  3. < (Less than)
  4. > (Greater than)
  5. <= (Less than or equal to)
  6. >= (Greater than or equal to)

To compare two strings, simply use the desired comparison operator between them.


Step 2: Compare Strings Using the strcmp() Function

You can also compare strings using the strcmp() function, which is available in the ctypes library for the C programming language. To use strcmp() in Python, you’ll need to import the ctypes library and create a C function instance.

Here’s how to compare strings using the strcmp() function:

hello is less than world

Note that we need to pass byte strings to the strcmp() function instead of regular Python strings.

Step 3: Compare Strings Using the is Operator

In Python, the is operator can be used to determine if two strings are identical, meaning that they are the same object in memory. This is different from the == operator, which checks if the strings have the same content.

Here’s an example of comparing strings using the is operator:

In this example, string1 and string3 have the same content and are the same object in memory, so both == and is return True.


In this tutorial, we’ve learned how to compare strings in Python using different methods, including comparison operators, the strcmp() function from the C library, and the is operator. These methods provide various ways to compare strings depending on your requirements, allowing you to effectively and efficiently perform string comparisons in your Python programs.