Python __init__ method
The __init__ method, if defined in a class, is called by Python whenever a class is instantiated. This method allows the class to be initialised and setup with whatever initial state is needed.
Python
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class MyClass: def __init__(self): self.myValue = 42;
Here we are initialising the instance variable myValue
with the value 42
The method allows you to define parameters, with the first parameter always being the
self
parameter, meaning the instance of
the class being initialised. The __init__
method is never called directly by
you, so to pass values to the parameters you defined, you pass the values to the class
constructor like this:
Python
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class MyClass: def __init__(self, value): self.myValue = value; myObject = MyClass(42)
The value 42 will be passed to the __init__
function as the second
parameter.