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POWhat is the difference between init__ and __init__ in python class?
 

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  1. POWhat is the difference between init__ and __init__ in python class?
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    <p><a href="https://stackoverflow.com/q/11899959/1329187">Some things</a> do not work if I use <code>__init__</code> instead of <code>init__</code> in a class. I am just curious what the difference between these two is.</p> <p>Here is a piece of the class. But it really does not matter because it works with <code>init__</code> and it doesn't with <code>__init__</code>. I understand that it was a typing error, then it means that I can actually call it any way.</p> <pre><code>class Point(namedtuple('Point', 'x, y, z')): 'class of a point as a tuple array' __slots__ = () # prevent creation of instance dictionaries to save memory def init__(self, x, y, z): self.x = x self.y = y self.z = z def __del__(self): 'delete the Point' def __repr__(self): 'Return a nicely formatted representation string' return '[%r, %r, %r]' % (self) def __str__(self): 'printing format' return '%s[%r, %r, %r]' % (self.__class__.__name__, self.x, self.y, self.z) def __add__(self, other): return Point(self.x + other.x, self.y + other.y, self.z + other.z) def __sub__(self, other): return Point(self.x - other.x, self.y - other.y, self.z - other.z) def __mul__(self, scal): 'multiplication ny scalar' return Point(self.x * scal, self.y * scal, self.z * scal) def __div__(self, scal): 'division ny scalar' if scal != 0.0: return Point(self.x / scal, self.y / scal, self.z / scal) else: sys.exit('Division by zero!') </code></pre> <p>My question there was "How to instantiate an object in two different ways?" and this way it works perfectly.</p> <p>How to explain this?</p>
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    1. COShow us your class.
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      1. POWhat is the difference between init__ and __init__ in python class?
      1. USalexvassel
    2. COpossible duplicate of [Python \_\_init\_\_ and self what do they do?](http://stackoverflow.com/questions/625083/python-init-and-self-what-do-they-do)
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      1. POWhat is the difference between init__ and __init__ in python class?
      1. USMartijn Pieters
    3. CO@Martijn No, that's not a possible duplicate, as defined in the close dialog. It does not cover *exactly* the same content. Your own answer to this question, if merged in as an answer to the linked question, would not answer it in any satisfactory way, it would just look out of place and confuse readers.
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      1. POWhat is the difference between init__ and __init__ in python class?
      1. USLauritz V. Thaulow
 

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