What are required arguments of a function in python?

Python Server Side Programming Programming

I have this python code.

def fooArg(str, num):
            print str, num
fooArg('Hi', 15)
fooArg('Hello')

When this code is run, I get an error for the second function call with a single argument. In this context, what are required arguments of a function in python?

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1 Answer

Rajendra Dharmkar

Answered on 7th Dec, 2017

Required arguments are the mandatory arguments of a function. These argument values must be passed in correct number and order during function call.

If you run the given code you get the following output

Hi 15
Traceback (most recent call last):
  File "requiredarg1.py", line 4, in <module>
    requiredArg('Hello')
TypeError: requiredArg() takes exactly 2 arguments (1 given)

EXPLANATION

In the output above for the first function call with two required arguments we get the output as Hi 15. But for the second function call with only one argument, we get a TypeError saying the function takes exactly 2 arguments. This shows the importance of required arguments and their mandatory nature

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What are required arguments of a function in python?

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