call a setter on an instance of a class in python

To call a setter on an instance of a class in Python, you can use the dot notation to access the setter method and pass in the value you want to set. Here's an example:

main.py
class MyClass:
    def __init__(self, value):
        self._value = value

    def set_value(self, new_value):
        self._value = new_value

    def get_value(self):
        return self._value

# create an instance of MyClass
obj = MyClass("Hello World")

# call the setter method on the instance
obj.set_value("New Value")

# print the instance's value
print(obj.get_value())  # output: New Value
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In this example, we define a class MyClass with a private variable _value and a setter method set_value() that sets _value to the passed-in value. We create an instance of MyClass with the value "Hello World", and then call the set_value() method with the argument "New Value". Finally, we print the value of the instance using the get_value() method, which should output "New Value".