Lambda Function in Python — What It Is, When to Use It & When to Avoid It
In this video, we break down lambda functions in Python — what they are, how to write them, and most importantly, when NOT to use them.
Lambda functions let you write small, anonymous, one-line functions without a full def block. They're powerful when used right — and a maintenance headache when used wrong.
✅ What you'll learn
• What a lambda function is and how it differs from def
• How to write a lambda function in Python
• Using lambda with map(), filter(), and sorted()
• Using lambda in pandas with apply() and map()
• 3 clear scenarios where you should avoid lambda
🔑 Key rule to remember:
If you can't read a lambda in one go — replace it with a regular function.
👨💻 Who this is for: Python developers who want to write cleaner, more Pythonic code.
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