Is it mandatory to return value in Python?

A Python function will always have a return value. There is no notion of procedure or routine in Python. So, if you don’t explicitly use a return value in a return statement, or if you totally omit the return statement, then Python will implicitly return a default value for you.

Is it mandatory for a function to return a value?

Yes, it must return a value. Flowing off the end of a function is equivalent to a return with no value; this results in undefined behavior in a value-returning function.

Can a function return a function Python?

Python may return functions from functions, store functions in collections such as lists and generally treat them as you would any variable or object. Defining functions in other functions and returning functions are all possible.

Is return statement optional in Python?

RETURN clause is optional and must be included into a FUNCTION program block only if a function returns some values to the calling routine.

Which function should not return any value?

Void functions are created and used just like value-returning functions except they do not return a value after the function executes. In lieu of a data type, void functions use the keyword “void.” A void function performs a task, and then control returns back to the caller–but, it does not return a value.

Can a function return a function?

Functions are the same data as numbers or strings, so functions can be passed to other functions as arguments, as well as returned from functions. We can even define a function inside another function and return it outside. And this is not surprising.

How do you return a value from a class in Python?

The classmethod() is an inbuilt function in Python, which returns a class method for a given function.;

1. Syntax: classmethod(function)
2. Parameter :This function accepts the function name as a parameter.
3. Return Type:This function returns the converted class method.

Which function does not return any value in Python?

All Python functions return the value None unless there is an explicit return statement with a value other than None.

How do you return a value in Python?

A return statement is used to end the execution of the function call and “returns” the result (value of the expression following the return keyword) to the caller. The statements after the return statements are not executed. If the return statement is without any expression, then the special value None is returned.

How do you return a function from a function in Python?

If you define a function inside your outer function, you can use the parameters passed to the outer function in the definition of the inner function and return that inner function as the result of the outer function.

When a function does not return any value what is the by default return value for that function?

The default return value from a function is int. Unless explicitly specified the default return value by compiler would be integer value from function.

Do all functions in Python have to return?

Quick answer: No Long answer: The return statement is not required in Python, and reaching the end of the function’s code without a return will make the function automatically return None Additional question: What does a function return? It returns the objects provided to the return statement if found one.

How do I return none from a function?

If you specify: or no return at all (but you reach the end of the function), None will be returned. Long answer: The return statement is not required in Python, and reaching the end of the function’s code without a return will make the function automatically return None

How do you return multiple values in a Python statement?

In describe(), you take advantage of Python’s ability to return multiple values in a single return statement by returning the mean, median, and mode of the sample at the same time. Note that, to return multiple values, you just need to write them in a comma-separated list in the order you want them returned.

How do I get the result of a function in Python?

1 def add (a, b): 2 result = a + b 3 return result 4 5 print (add (2, 2)) Now, when you run adding.py , you’ll see the number 4 on your screen. So, if you’re working in an interactive session, then Python will show the result of any function call directly to your screen.