typeerror unsupported operand type s for nonetype and int

Are you getting the “TypeError unsupported operand type s for NoneType and int” error while coding in Python?

Don’t worry, in this article, we will explain to you what this error means, and its causes.

How you can solve it with the solutions we provided.

What is TypeError: unsupported operand type(s) for NoneType and int Error?

This error usually occurs when you are trying to perform an operation that involves NoneType and an integer data type.

In other words, this error occurs if you are attempting to do arithmetic operations on NoneType (a value that represents the absence of a value) and an integer.

This is an example of why this error occurs:

x = None
y = 5
result = x + y

This code will result in the following error message:

C:\Users\Dell\PycharmProjects\pythonProject\venv\Scripts\python.exe C:\Users\Dell\PycharmProjects\pythonProject\main.py
Traceback (most recent call last):
File “C:\Users\Dell\PycharmProjects\pythonProject\main.py”, line 3, in
result = x + y
TypeError: unsupported operand type(s) for +: ‘NoneType’ and ‘int’

In this example, this error message shows that the ‘+’ operator cannot be applied to the NoneType and int data types.

Causes of the Error

There are multiple reasons why you might encounter the unsupported operand type(s) for NoneType and int error while coding in Python.

Here are some common causes:

• You are using a NoneType value in an arithmetic operation.
• Not returning a value from a function.
• It might possible you are using the wrong data type.
• Not initializing a variable.
• You are using the wrong variable name.

Also, you read the other fixed python error that you might encounter when you run the python program.

• typeerror: loaderutils.getoptions is not a function
• Typeerror unsupported operand type s for dict and dict [SOLVED]
• Attributeerror module tensorflow compat v1 has no attribute contrib

How to solve this error?

To solve this error, you will make sure that the objects you are working with have the correct types.

In the example above, we could solve the issue through assigning a value to x that is not None:

x = 3
y = 5
result = x + y
print(result)

Output:

C:\Users\Dell\PycharmProjects\pythonProject\venv\Scripts\python.exe C:\Users\Dell\PycharmProjects\pythonProject\main.py
8

This code defines two variables x and y and assigns them the values 3 and 5 respectively.

Then, the code calculates the sum of x and y using the “+ ” operator and assigns the result to a new variable named “result“.

Finally, the code prints the value of result using the print() function.

In this case, the value of result is 8, which is the sum of x and y.

How to Avoid the TypeError: Unsupported Operand Type(s) for NoneType and Int?

To avoid this error, you will make sure to always check the type of the objects you are working with.

Before you perform an operations on them.

It will be done using the type() function.

The other way to avoid this error is to make sure that your functions always return a value of the correct type.

If a function does not return anything, you can use the return None statement at the end of the function.

FAQs

Conclusion

In this article, we’ve discussed the causes of the error, and what error means, and also we provide the solutions on how to solve it.

Through following these solutions, you can prevent encountering this error and you can run your python code smoothly.