In this article, we are going to solve Attributeerror: can’t set attribute. We will discuss why and how this error occurs, a brief discussion about this error. Also, step by step on how to solve this error.
Why this Attributeerror: can’t set attribute occur?
“AttributeError: can’t set attribute” occurs when you try to set an attribute that cannot be set. This can happen in many different situations. Generally, it means that the object you are trying to modify does not allow changes to that particular attribute.
For Example,
In the given example above, we create a named tuple called Shoes using the collections module in Python. This named tuple has two fields – price and color.
Next, a new instance of the Shoes named tuple is created and assigned to the variable Nike. The price and color fields of this instance are initialized with values 1500 and ‘black and white‘, respectively.
However, in the next line of code, Nike.price = 2000, an attempt is made to change the value of the price field of the Nike instance. This operation will fail with an error.
This will be its output:
So now let’s understand why this error occurs.
Why this error occurs?
Attributeerror: can’t set attribute occurs because named tuples are immutable, which means that their values cannot be changed once they are created.
For example, you cannot change a tuple (‘1500’, ‘black and white’) to (‘2000’, ‘green’) without creating a new one.
If you try to modify the value of an attribute in a namedtuple object in Python, you are attempting to change an immutable object. As a result, Python will raise an error with the message “can’t set attribute“, indicating that the object cannot be modified.
How to fix Attributeerror: can’t set attribute?
Here are the solutions of Attributeerror: can’t set attribute you can try.
1. Use the _replace() method.
To avoid Attributeerror: can’t set attribute, you can create a new named tuple with the updated values using the _replace() method, as shown below:
This method returns a new named tuple that has the same values as the original named tuple, except for the modified field(s).
2. Creating a new named tuple.
We can also create a new named tuple with the modified values by unpacking the original named tuple and passing the modified value(s) to the constructor.
3. Converting the named tuple to a dictionary.
We can convert the named tuple to a dictionary, modify the value of the desired field in the dictionary, and then create a new named tuple from the modified dictionary.
Conclusion
In conclusion, the error “AttributeError: can’t set attribute” occurs when you try to set an attribute that cannot be set. It means that the object you are trying to modify does not allow changes to that particular attribute.
By following the given solution above, it is possible you can be able to fix the error.
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