Indentation Error in Python: Here’s how you fix it!

What is indentation?

The indentation gives programmers an easy way to distinguish blocks of content from each other in order to make sure their program has no errors. It will also allow you to easily rearrange your code by simply moving around its indented sections without affecting anything else! Indenting also makes it easier when you want to see which part of your site needs work later on down the line: if all code is indented, it will be easy to see where you need improvement.

This guide explains the Python Indentation error and presents the solution to solve it.

What is an indentation error in Python?

The Indentation error occurs in the Python script due to the whitespace of tab errors. The code in the Python script is arranged based on whitespaces. It doesn’t matter either you are a new Python programmer or an experienced programmer, you can face the Indentation error.

Python arranges its code based on PEP8 whitespace ethics. As mentioned earlier, Python also uses the procedural language style, if we miss adding the spaces or tabs, then it will show an error.

In exceptional cases, if there is a whitespace or tabs error in the Python script, the code runs correctly. However, in many cases, the program execution will be interrupted in the middle, and the interpreter will show the “Indentation Error”.

Causes of Indentation Error

Following are the prime reasons for the error:

  • In your Python script, if you are using both tabs and whitespaces, then the code will not be arranged properly and an interpreter will throw the error.
  • If the indentation is not placed in the right place, the error is inevitable.
  • The compound statements i.e. if, else and loops are not indented.
  • You don’t remember to indent functions
  • You don’t remember to indent user-defined classes.

These are the main causes of indentation errors. Now let’s see examples of indentation errors.

#declaring a number variable

num=10

if(num>5):

print(“Number is greater than 5”)

else:

print(“The number is less than 5”)

In the above-given code snippet, an indentation is expected after the if statement to start the if block. If we run the above-given code, the interpreter will show an error.

A solution to the indentation error

Since the indentation error occurs due to whitespaces and tabs, there is no pre-defined solution to this error. You have to go through each line of code to identify the mistake. Especially, check the compound statements code. If there is a loop or if statement in the code, then there should be proper indentation. The lines of code must be arranged in the blocks. Let’s consider the above-given code snippet again.

#declaring a number variable

num=10

if(num>5):

print(“Number is greater than 5”)

else:

print(“The number is less than 5”)

Now, there is a proper indentation after the if statement. This time the code will be executed successfully and it will not show any type of error.

The other solution is to enable the option is your IDE which shows the tabs and whitespaces.

Conclusion

Python is a widely-used programming language, but developers can face the indentation error due to Python’s procedural nature. This guide presents the solution to solve indentation errors.

Related articles:

  1. Python MatplotLib Tutorial – A guide to plotting library for python.
  2. PyOpenGL Tutorial – A complete guide on creating graphics in Python.

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