What are the differences between Python functions and lambda expressions?

What are the differences between Python functions and lambda expressions?

Python functions are defined using the 'def' keyword and can have multiple expressions, while lambda expressions are anonymous functions defined with 'lambda' and can only contain a single expression.

Can you give me an example of both?

Sure! A function example:

def add(x, y): return x + y

A lambda example:

add_lambda = lambda x, y: x + y.

When should I use a lambda instead of a regular function?

Use a lambda when you need a small function for a short period and don't want to formally define it. It's often used in functions like 'map' or 'filter'.

Are there any limitations to using lambda functions?

Yes, lambda functions can only contain a single expression and cannot include statements or annotations, which limits their complexity.