2.1.13

Casting

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Casting

Casting is the process of converting data from one type to another.

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Reasons for casting

  • One of the most common reasons for casting is output.
  • Output must be formatted as a string, and so we may need to convert a certain piece of data to a string.
  • All input also comes as a string, and must then be converted to other data types.
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Casting functions

  • Casting to a string can be done using the str function. E.g:
    • str(3) gives "3".
  • Casting to an integer can be done using the int function. E.g:
    • int(3.4) gives 3.
  • Casting to a float can be done using the float function. E.g:
    • float("3.4") gives 3.4.

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