How to Return Nothing in Python from Function

You can return nothing in Python from a function in three ways. The first way is by omitting a return statement.

def someFunction(x):
    x = x * 2

print(someFunction(2))

#Output:
None

The second way is by including a blank return statement.

def someFunction(x):
    x = x * 2
    return

print(someFunction(2))

#Output:
None

The third way is by returning None explicitly.

def someFunction(x):
    x = x * 2
    return None

print(someFunction(2))

#Output:
None

When working with functions in Python, sometimes you don’t want a function to return anything.

In this case, you might be asking, how do I return nothing from a function in Python?

Well, to return nothing, you have three options.

The first way is by omitting a return statement. In this case, you are not returning anything and this returns None.

def someFunction(x):
    x = x * 2

print(someFunction(2))

#Output:
None

The second way is by including a blank return statement. A blank return statement implicitly returns None.

def someFunction(x):
    x = x * 2
    return

print(someFunction(2))

#Output:
None

The third way is by returning None explicitly. By returning None, you can see explicitly that you are getting back None when you call the function.

def someFunction(x):
    x = x * 2
    return None

print(someFunction(2))

#Output:
None

Pick any of these three options and you will succeed with returning nothing from a function in Python.

Hopefully this article has been useful for you to learn how to return nothing in Python.