How to debug TypeError str object is not callable python3 when implementing linkedList

Title: Debugging TypeError 'str' object is not callable in Python3 Linked List Implementation
Introduction:
When working with data structures like linked lists in Python3, you may encounter the infamous TypeError: 'str' object is not callable. This error often arises due to a misunderstanding of object types or incorrect usage of parentheses. In this tutorial, we will explore common causes of this error and provide step-by-step guidance on how to debug and fix it.
Let's start by implementing a simple singly linked list in Python. Assume we have a Node class and a LinkedList class.
Incorrect Function Call:
Explanation: In this case, the append function is mistakenly assigned a string value, making it a string object. Later, when trying to call append('new_data'), a TypeError occurs because a string is not callable.
Overwriting Built-in Functions:
Explanation: Overwriting built-in functions like str can lead to unexpected behavior. Here, calling linked_list() triggers the overridden str method, resulting in the TypeError.
Check Function Assignments:
Verify that functions are not being mistakenly assigned values.
Review Variable Names:
Ensure that variable names are not accidentally overwritten with different types.
Avoid Overwriting Built-in Functions:
Be cautious about overriding built-in functions. If needed, choose different names for your methods to prevent conflicts.
Here's a corrected version of the LinkedList class:
Debugging the 'str' object not callable error involves careful examination of your code for incorrect assignments and potential conflicts with built-in functions. By following the steps outlined in this tutorial, you can identify and fix issues in your linked list implementation, ensuring smooth execution of your Python code.
ChatGPT