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*args in Python allows you to pass multiple, varying arguments or keyword arguments to a function. args is just a name. You’re not required to use the name args. You can choose any name that you prefer. "*" is the unpacking operator.

Simple function: code:
         
Output:         
         

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Sum a list of numbers in any length: code:
         
Output:         
         
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Check if all the characters in the text are numeric or not: code:
         
Output:         
          True

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Calculate the arbitrary number of variables: code:
         
Output:         
         

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Variable number of input arguments: code:
         
Output:         
         

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Sum the numbers of a defined list: code:
         
Output:         
         23

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Sum the numbers of a varying list: code:
         
Output:         
         23

Use decorators: code:
         
Output:         
         

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Access a function variable from outside with a function decorator (but makes the code hard to maintain): Code:
         
Output: