You can use a lambda function with the reduce() function in Python to apply a function to the elements of a sequence in a cumulative way, reducing the sequence to a single value. The reduce() function is not built-in function in Python 3, so you need to import it from the functools module.
Here is an example:
from functools import reduce
numbers = [1, 2, 3, 4, 5]
product = reduce(lambda x, y: x*y, numbers)
print(product)
In this example, we have a list of numbers from 1 to 5. We want to calculate the product of all the numbers in the list using the reduce() function and a lambda function.
The lambda function takes two arguments x and y, which represent two elements from the numbers list. The lambda function returns the product of x and y. The reduce() function applies this lambda function to the first two elements of the numbers list, and then applies the lambda function to the result and the next element of the list, and so on, until all elements of the list have been processed. The final result is the product of all the elements of the list.
We assign this result to the variable product, and then print it to the console using the print() function. The output of this code will be 120, which is the product of all the numbers in the original list.
