Programming in Python/

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Arguments

Arguments

Learn about the usage of different types of arguments in functions.

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Types of arguments

Arguments in a Python function can be of four types:

  • Positional arguments
  • Keyword arguments
  • Variable-length positional arguments
  • Variable-length keyword arguments

Positional and keyword arguments are often called required arguments, whereas variable-length arguments are called optional arguments.

Positional arguments

Positional arguments must be passed in the correct positional order. For example, if a function expects an int, float, and str to be passed to it, then while calling this function, the arguments must be passed in the same order.

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def fun(i, j, k) :
  print(i + j)
  print(k.upper( ))
fun(10, 3.14, 'Rigmarole') # correct call
fun('Rigmarole', 3.14, 10) # error, incorrect order

When passing positional arguments, the number of arguments ...