# lambda keyword with example in Python

Python lambda keyword: Here, we are going to learn about the lambda keyword with example.
Submitted by IncludeHelp, on April 15, 2019

## Python lambda keyword

lambda is a keyword (case-sensitive) in python, it is used to create an anonymous function that can accept any number of arguments but a single expression/statement.

Syntax of lambda keyword

```    function_name = lambda parameters_list : expression
```

Example:

```    Input:
# lambda function to find power
power = lambda x,y : x**y

# calling function
result = power(10, 3)
print(result)

Output:
1000
```

### Python examples of lambda keyword

Example 1: Create a lambda function to find sum of 4 numbers.

```# python code to demonstrate example of
# lambda keyword

# Create a lambda function to find sum of 4 numbers

# lambda function to add 4 numbers
addnumbers = lambda n1,n2,n3,n4 : n1+n2+n3+n4

# numbers
a = 10
b = 20
c = 30
d = 40

# printing the sum by calling lambda function
```

Output

```sum =  100
```

Example 2: Create a lambda function to find a to the power b, where, a and b are the parameters.

```# python code to demonstrate example of
# lambda keyword

# Create a lambda function to find a to the power b,
# where a and b are the parameters

# lambda function to find power
power = lambda x,y : x**y

a = 10  # base
b = 3   # power

# calling function
result = power(a,b)

# printing the result
print("power of ", a, " and ", b, " is = ", result)
```

Output

```power of  10  and  3  is =  1000
```

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