What is the purpose of the lambda keyword in Python?

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Answer:

The lambda keyword in Python is used to create anonymous functions, also known as lambda functions. Anonymous functions are small, one-time use functions that do not have a name. They are often used when a function is required only once in a specific context and it is not necessary to give it a name.

The syntax of a lambda function is as follows:

lambda arguments: expression

where:

• arguments are the input parameters to the lambda function.
• expression is a single expression that is evaluated and returned when the lambda function is called.

Lambda functions can be assigned to a variable or passed as an argument to another function, just like regular functions.

For example:

add = lambda x, y: x + y
print(add(3, 4)) # Output: 7

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