The python return statement is used to return values from the function. We can use the return statement in a function only. It can’t be used outside of a Python function. Show
Python Function without return statementEvery function in Python returns something. If the function doesn’t have any return statement, then it returns
Output: Python Function Without Return StatementPython Return Statement ExampleWe can perform some operation in a function and return the result to the caller using the return statement.
Output: Python Return ExamplePython return statement with expressionWe can have expressions also in the return statement. In that case, the expression is evaluated and the result is returned.
Output: Python Return Statement With ExpressionPython return booleanLet’s look at an example where we will return the boolean value of the argument of a function. We will use bool() function to get the boolean value of the object.
Output: Python Return BooleanPython return stringLet’s look at an example where our function will return the string representation of the argument. We can use the str() function to get the string representation of an object.
Output: Python Return StringPython return tupleSometimes we want to convert a number of variables into a tuple. Let’s see how to write a function to return a tuple from a variable number of arguments.
Output: Python Function Return TupleFurther Reading: Python *args and **kwargs Python function returning another functionWe can return a function also from the return statement. This is similar to Currying, which is the technique of translating the evaluation of a function that takes multiple arguments into evaluating a sequence of functions, each with a single argument.
Output: Python Return FunctionPython function returning outer functionWe can also return a function that is defined outside of the function with return statement.
Output: Python Function Return Outer FunctionPython return multiple valuesIf you want to return multiple values from a function, you can return tuple, list, or dictionary object as per your requirement. However, if you have to return a huge number of values then using sequence is too much resource hogging operation. We can use yield, in this case, to return multiple values one by one.
Output: Python Return vs YieldSummaryThe python return statement is used to return the output from a function. We learned that we can also return a function from another function. Also, expressions are evaluated and then the result is returned from the function. You can checkout complete python script and more Python examples from our GitHub Repository. What does a function return without return?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.
What happens if a method does not have a return statement?You declare a method's return type in its method declaration. Within the body of the method, you use the return statement to return the value. Any method declared void doesn't return a value. It does not need to contain a return statement, but it may do so.
Can you have a function without a return?A function without a return statement will return a default value. In the case of a constructor called with the new keyword, the default value is the value of its this parameter. For all other functions, the default return value is undefined .
What does it mean for a function to return None?00:19 There are basically three ways to cause a value of None to be returned from a function: if the function doesn't have a return statement at all, if you have a return statement with no return value, or you can explicitly return None .
|