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Python 101: Interactively learn how to program with Python 3

Replacing Setters and Getters with a Python property

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Let’s pretend that we have some legacy code that someone wrote who didn’t understand Python very well. If you’re like me, you’ve already seen this kind of code before:

Python
from decimal import Decimal
class Fees(object):
    """"""
    def __init__(self):
        """Constructor"""
        self._fee = None
    def get_fee(self):
        """
        Return the current fee
        """
        return self._fee
    def set_fee(self, value):
        """
        Set the fee
        """
        if isinstance(value, str):
            self._fee = Decimal(value)
        elif isinstance(value, Decimal):
            self._fee = value

To use this class, we have to use the setters and getters that are defined:

Python
f = Fees()
f.set_fee("1")
value = f.get_fee()
print(value)

If you want to add the normal dot notation access of attributes to this code without ...