A lambda function in Python is a small, anonymous function defined using the lambda keyword. It's useful for writing quick, throwaway functions without formally defining a function using the def keyword. Lambda functions can take any number of arguments but can only have one expression. They are often used as arguments to higher-order functions like map(), filter(), and reduce().

For example, a simple lambda function that adds two numbers together looks like this:

add = lambda x, y: x + y
print(add(5, 3))  # Output: 8

Lambda functions are commonly used in Python for tasks that require a short, simple function definition. However, they are limited in their complexity and are not suitable for more complex functions. Understanding lambda functions is a useful skill for beginners learning Python, as they are a common feature used in many Python libraries and frameworks. If you're a beginner looking to learn Python, consider taking a Python course for beginners by The IoT Academy to get started.

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