
- Python 3 Basic Tutorial
- Python 3 - Home
- What is New in Python 3
- Python 3 - Overview
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- Python 3 - Basic Syntax
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How to create instance Objects using __init__ in Python?
- The instantiation or calling-a-class-object operation creates an empty object. Many classes like to create objects with instances with a specific initial state. Therefore a class may define a special method named __init__(), as follows −
- def __init__(self) −
- self.data = [ ]
- When a class defines an __init__() method, class instantiation automatically invokes the newly-created class instance which is obtained by −
- x = MyClass()
- The __init__() method may have arguments. In such a case, arguments given to the class instantiation operator are passed on to __init__(). For example,
>>> class Complex: ... def __init__(self, realpart, imagpart): ... self.r = realpart ... self.i = imagpart ... >>> x = Complex(4.0, -6.5) >>> x.r, x.i (4.0, -6.5)
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