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Can a function print output and return a value?
The computer cannot make use of that printing. return is how a function gives back a value. This value is often unseen by the human user, but it can be used by the computer in further functions. On a more expansive note, print will not in any way affect a function.
What is the return value of print ()?
The print() function writes, i.e., “prints”, a string or a number on the console. The return statement does not print out the value it returns when the function is called. It however causes the function to exit or terminate immediately, even if it is not the last statement of the function.
How do I return instead of print?
print just shows the human user a string representing what is going on inside the computer. The computer cannot make use of that printing. return is how a function gives back a value. This value is often unseen by the human user, but it can be used by the computer in further functions.
Does function need return value?
First, if a function has a non-void return type, it must return a value of that type (using a return statement). Failure to do so will result in undefined behavior. The only exception to this rule is for function main(), which will assume a return value of 0 if one is not explicitly provided.
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 you return a print statement?
You can put one or more print statements inside the function definition and not bother to return anything from the function (the value None will be returned). In that case, invoke the function without a print statement. For example, you can have an entire line of code that reads f(3) .
Is return necessary in Python?
A Python function will always have a return value. There is no notion of procedure or routine in Python. Since this is the purpose of print() , the function doesn’t need to return anything useful, so you get None as a return value. Note: The Python interpreter doesn’t display None .