Final answer:
The keyword 'lambda' is used in Python to create anonymous functions efficiently.
Explanation:
The keyword used in Python language is lambda.
The lambda keyword in Python is used to create anonymous functions, also known as lambda functions. These functions are small and can have any number of arguments but only one expression. An example of using lambda in Python could be: add = lambda x, y: x + y, defining a function that adds two numbers.
Using the lambda keyword allows for a more concise way of writing functions in Python, especially when functions are needed for a short period of time or as arguments to higher-order functions.
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