attributeerror: ‘function’ object has no attribute

In this article, we will explain the solutions on how to resolve the ‘function’ object has no attribute and why this error occurs

Before we proceed to solve the error function object has no attribute, we will first need to know what ‘function’ object has no attribute?

What is function object has no attribute?

The “Function object has no attribute” is an error message that usually occurs in Python if you are trying to access an attribute, which is like a method or property that doesn’t exist on a function object.

This means that you are trying to call a method or access a property on a function that won’t support that particular attribute.

This will happen if you misspell the attribute name or use the wrong name for the function.

For example:

class Rectangle:
    def __init__(self, length, width):
        self.length = length
        self.width = width

    def area(self):
        return self.length * self.width

# Create a Rectangle object
my_rectangle = Rectangle(4, 5)

# Try to access a non-existent attribute on the area method
my_rectangle.area.color

In this code example, we define a class called Rectangle that has an __init__ method to initialize its length and width attributes, and an area method that calculates the rectangle’s area.

Then, we create a Rectangle object with a length of 4 and a width of 5.

However, in the next line, we try to access a non-existent attribute color on the area method of the my_rectangle object.

This will result in an AttributeError: ‘function’ object has no attribute error because the area method which doesn’t have a color attribute defined.

If we run the code example above, the output will be like this:

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 13, in
my_rectangle.area.color
AttributeError: ‘function’ object has no attribute ‘color’

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Causes of the function object has no attribute

The main cause of the AttributeError: function object has no attribute error in Python is trying to access an attribute that does not exist on a function object.

Here are some possible reasons why this error might occur:

• Misspelling the attribute name
• Using the wrong name for the function
• Using a function as a variable
• Using a method or attribute that does not exist

How to solve the function’ object has no attribute?

Here are some solutions and examples on how to solve the “AttributeError: ‘function’ object has no attribute” error:

Solution 1: Check the spelling

It is possible that you might misspell the attribute or method that you are trying to access. Make sure that the spelling matches exactly with what you are using.

For example:

def my_function():
    return "This is an example of function object has no attribute!"

print(my_function.lenght) # incorrect spelling

Output:

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 4, in
print(my_function.Length) # incorrect spelling
AttributeError: ‘function’ object has no attribute ‘lenght’

In this example, the spelling of “lenght” was wrong. Yet, the correct spelling must be “len”. So the corrected code it should be:

def my_function():
    return "This is an example of function object has no attribute!"

print(len(my_function())) # correct spelling

Output:

C:\Users\Dell\PycharmProjects\pythonProject\venv\Scripts\python.exe C:\Users\Dell\PycharmProjects\pythonProject\main.py
55

Solution 2: Check the object type

You will make sure that you are trying to access the attribute or method on the correct object type. For example:

number = 5
# error because integer doesn't have an upper() method
print(number.upper()) 

Output:

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
print(number.upper())
AttributeError: ‘int’ object has no attribute ‘upper’

In the code example above, we are trying to call the “upper” method on an integer, which does not have that method. Instead, we should be using a string.

Let’s take a look at the correct example below:

word = "This is the correct example of object type"
print(word.upper()) # correct

Output:

C:\Users\Dell\PycharmProjects\pythonProject\venv\Scripts\python.exe C:\Users\Dell\PycharmProjects\pythonProject\main.py
THIS IS THE CORRECT EXAMPLE OF OBJECT TYPE

Solution 3: Check the scope

You will make sure that the attribute or method should define in the correct scope.

For example:

def my_function():
    name = "juan"

print(name.upper()) # error because name is not defined in this scope

Output:

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 4, in
print(name.upper()) # error because name is not defined in this scope
AttributeError: ‘function’ object has no attribute ‘name’

In the code example above, we are trying to access the “name” variable outside of the function where it was defined. Instead, we should be returning the variable from the function and accessing it from there:

For example:

def my_function():
    name = "Juan"
    return name

print(my_function().upper()) # correct

Output:

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

Solution 4: Check the code flow

You can trace the code flow and make sure that the function you are calling is actually being executed and returning the expected object.

For example:

def my_function():
    return "welcome to itsourcecode.com"

print(my_function.upper()) # error because we forgot to call my_function

Output:

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 4, in
print(my_function.upper()) # error because we forgot to call my_function
AttributeError: ‘function’ object has no attribute ‘upper’

In the code example above, we forget to call the “my_function” before we are trying to access the “upper” method. Instead, we should be calling the function:

def my_function():
    return "welcome to itsourcecode.com"

print(my_function().upper()) # correct

Output:

C:\Users\Dell\PycharmProjects\pythonProject\venv\Scripts\python.exe C:\Users\Dell\PycharmProjects\pythonProject\main.py
WELCOME TO ITSOURCECODE.COM

FAQs

Conclusion

To conclude, you should be able to solve the attributeerror: ‘function’ object has no attribute through the following solutions in this article.