How to fix TypeError: object of type 'NoneType' has no len() when checking i... in Python

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We're excited to share with you our newest video, "How to solve TypeError: object of type 'NoneType' has no len() when checking if a list is empty using len(variable). in Python". 🎥 This series is meticulously designed to arm you with knowledge 🧠 and skills 🛠️ to overcome frequent coding challenges.

Today, we will decipher 🔎 and resolve a common error faced by Python coders: the bit hard to solve TypeError: object of type 'NoneType' has no len() when checking if a list is empty using len(variable).. Here is a snapshot of the code of the video:

Troubling Scenario: ❗️

my_list = None
if len(my_list) == 0:
print("List is empty")

Unwanted Result: 🚫
TypeError: object of type 'NoneType' has no len() when checking if a list is empty using len(variable).

Effective Resolution: ✔️

my_list = []
if len(my_list) == 0:
print("List is empty")

Desired Output: 🏁
List is empty

In this detailed walkthrough, we will illuminate 💡 the underlying cause of this error, and offer a comprehensive explanation: Code1 triggers a TypeError because `len()` cannot be used on a `None` type. Code2 checks the length properly since `my_list` is an initialized empty list. 🎯

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