Lambda Expressions in Python

In this lesson, you will learn about lambda expressions in python, syntax along and how to use Lambda expressions with some example.

Lambda Expressions in Python

The lambda function is denoted by the lambda keyword and it is an anonymous function in Python. A lambda function can take an infinite number of arguments, but it is restricted to one expression.

Syntax:

lambda arguments : expression

Now let’s use the lambda functions in programs to understand more about them.

Sample program using lambda function in python,

Input:

[gamipress_button label=”Try It” onclick=”window.open(‘https://coderseditor.com/?id=1382′,’_blank’)”]

x ="Developer Publish Academy"
 (lambda x : print(x))(x)

Output:

Developer Publish Academy

Sample program using lambda function in Python

Input

[gamipress_button label=”Try It” onclick=”window.open(‘https://coderseditor.com/?id=1381′,’_blank’)”]

value = [lambda x=x: x*5 for x in range(57, 67)]
for i in value:
    print(i())

Output:

285
290
295
300
305
310
315
320
325
330

Sample program using lambda function with multiple statements in python

Input:

[gamipress_button label=”Try It” onclick=”window.open(‘https://coderseditor.com/?id=1380′,’_blank’)”]

List = [[1,5,7],[7, 5, 9, 14],[57, 75, 67, 76]]
sortList = lambda x: (sorted(i) for i in x)
highest = lambda x, f : [y[len(y)-1] for y in f(x)]
result = highest(List, sortList)
print("Highest values in the list:",result)

Output:

Highest values in the list: [7, 14, 76]

Sample program using the lambda function with def function in python

Input:

[gamipress_button label=”Try It” onclick=”window.open(‘https://coderseditor.com/?id=1376′,’_blank’)”]

def lmabdafunction(x):
  return lambda a : a * x
result = lmabdafunction(57)
print(result(75))

Output:

4275