Simple Inherit from class in Python throws error

Hi I just started with Python, I'm currently developing a UI testing application for mobile devices and I have to work on a custom rendered Softkeyboard.

Button.py

class Button():
    def __init__(self, name, x, y, x2=None, y2=None):
        self.name = name
        self.x = x
        self.y = y
        self.x2 = x2
        self.y2 = y2

KeyboardKey.py

import Button
class KeyboardKey(Button):
    def __init__(self, name, x, y):
        super(self.__class__, self).__init__(name, x, y)

That's my error:

Traceback (most recent call last):
  File "/home/thomas/.../KeyboardKey.py", line 2, in 
    class KeyboardKey(Button):
TypeError: Error when calling the metaclass bases
    module.__init__() takes at most 2 arguments (3 given)

---

The way you do in your code, you inherit from module Button , not a class. You should inherit class Button.Button instead.

In order to avoid this in future, I strongly suggest to name modules with lowercase, and capitalize classes. So, better naming would be:

import button
class KeyboardKey(button.Button):
    def __init__(self, name, x, y):
        super(self.__class__, self).__init__(name, x, y)

Modules in python are normal objects (of type types.ModuleType ), can be inherited, and have __init__ method:

>>> import base64
>>> base64.__init__
<method-wrapper '__init__' of module object at 0x00AB5630>

See usage:

>>> base64.__init__('modname', 'docs here')
>>> base64.__doc__
'docs here'
>>> base64.__name__
'modname'

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