How to fix 'TypeError: 'NoneType' object is not iterable' when trying to ite... in Python

Hello, Dedicated Coders! 🖥️💡

We're excited to share with you our newest video, "How to solve 'TypeError: 'NoneType' object is not iterable' when trying to iterate over the result not returned by function. 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: 'NoneType' object is not iterable' when trying to iterate over the result not returned by function.. Here is a snapshot of the code of the video:

Troubling Scenario: ❗️

def func():
return None

for i in func():
print(i)

Unwanted Result: 🚫
'TypeError: 'NoneType' object is not iterable' when trying to iterate over the result not returned by function.

Effective Resolution: ✔️

def func():
return []

for i in func():
print(i)

Desired Output: 🏁

In this detailed walkthrough, we will illuminate 💡 the underlying cause of this error, and offer a comprehensive explanation: Code1 fails because `func()` returns `None`, which isn't iterable. To fix, return an iterable like an empty list `[]`. Code2 works correctly as it returns an empty list, which is iterable. 🎯

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