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Learn how to easily check the name of a `namedtuple` in Python using `isinstance` and other helpful methods.
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How to Check the Name of a namedtuple in Python

When working with Python, namedtuples provide an efficient way to define simple classes for storing related data. However, there can be instances when you might need to check the type of a particular namedtuple while iterating through a list of them. This guide will guide you through the process of determining whether an element in your list is a Student or a Room, and how to retrieve the name of the namedtuple itself.

Understanding namedtuples

namedtuples are a subclass of Python's built-in tuple data type, designed to give tuple-like objects readable field names. For example, you might define Student and Room like this:

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This structure allows you to create instances like Student(ID='1', name='abc'), making your code more intuitive and readable.

The Problem: Identifying Named Tuples

Imagine you have a list of different namedtuples as shown below:

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You might need to loop through this list and determine whether each entry is a Student or a Room.

The Solution: Using isinstance()

Python provides a built-in function called isinstance() that allows you to check if an object is an instance of a class. Here's how you can use it:

Step 1: Loop Through the List

You first need to loop through each element in your list:

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Step 2: Use isinstance() to Identify the Type

Inside the loop, you can use isinstance() to check the class of each object:

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This will output each object's type as you loop through the list.

Step 3: Check the Class Name

If you also want to obtain the name of the class dynamically, you can use the attribute __class__.__name__. This will let you retrieve the class name as a string:

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This will display the name of the class for each object in your list.

Conclusion

By using the isinstance() function in conjunction with the _class__.__name_ attribute, you can efficiently check and retrieve the class names of namedtuples. This is especially useful in applications where you handle multiple data types and need to ensure the correct type is being processed.

Now you can confidently loop through your namedtuple lists and identify their types as needed!