Python inheritance add new init on child












-1















https://pastebin.com/GyPzN8Yz



I want to initiate and calculate volume from TwoDim class without repeat to define length and wide, and without to make instance of TwoDim but direct create ThreeDim.



class TwoDim():
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, height):
self.height = height
self.volume = self.square * self.height



I try someting like this, but still not work..



class TwoDim(): 
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super().__init__(self, length, width, height)
self.height = height
self.volume = self.square * self.height

block = ThreeDim(length = 10, width = 5, height = 4)










share|improve this question

























  • Probably helpful: docs.python.org/3.7/library/functions.html#super

    – colidyre
    Nov 19 '18 at 13:20











  • I try someting like this, but still not work.. <code> class TwoDim(): def __init__(self, length, width): self.length = length self.width = width self.square = self.length * self.width class ThreeDim(TwoDim): def __init__(self, length, width, height): super().__init__(self, length, width, height) self.height = height self.volume = self.square * self.height block = ThreeDim(length = 10, width = 5, height = 4) </code>

    – Riska Kurnianto
    Nov 19 '18 at 13:33











  • super().__init__(self, length, width, height) -> super().__init__(self, length, width)

    – Corentin Limier
    Nov 19 '18 at 13:51


















-1















https://pastebin.com/GyPzN8Yz



I want to initiate and calculate volume from TwoDim class without repeat to define length and wide, and without to make instance of TwoDim but direct create ThreeDim.



class TwoDim():
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, height):
self.height = height
self.volume = self.square * self.height



I try someting like this, but still not work..



class TwoDim(): 
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super().__init__(self, length, width, height)
self.height = height
self.volume = self.square * self.height

block = ThreeDim(length = 10, width = 5, height = 4)










share|improve this question

























  • Probably helpful: docs.python.org/3.7/library/functions.html#super

    – colidyre
    Nov 19 '18 at 13:20











  • I try someting like this, but still not work.. <code> class TwoDim(): def __init__(self, length, width): self.length = length self.width = width self.square = self.length * self.width class ThreeDim(TwoDim): def __init__(self, length, width, height): super().__init__(self, length, width, height) self.height = height self.volume = self.square * self.height block = ThreeDim(length = 10, width = 5, height = 4) </code>

    – Riska Kurnianto
    Nov 19 '18 at 13:33











  • super().__init__(self, length, width, height) -> super().__init__(self, length, width)

    – Corentin Limier
    Nov 19 '18 at 13:51
















-1












-1








-1








https://pastebin.com/GyPzN8Yz



I want to initiate and calculate volume from TwoDim class without repeat to define length and wide, and without to make instance of TwoDim but direct create ThreeDim.



class TwoDim():
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, height):
self.height = height
self.volume = self.square * self.height



I try someting like this, but still not work..



class TwoDim(): 
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super().__init__(self, length, width, height)
self.height = height
self.volume = self.square * self.height

block = ThreeDim(length = 10, width = 5, height = 4)










share|improve this question
















https://pastebin.com/GyPzN8Yz



I want to initiate and calculate volume from TwoDim class without repeat to define length and wide, and without to make instance of TwoDim but direct create ThreeDim.



class TwoDim():
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, height):
self.height = height
self.volume = self.square * self.height



I try someting like this, but still not work..



class TwoDim(): 
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super().__init__(self, length, width, height)
self.height = height
self.volume = self.square * self.height

block = ThreeDim(length = 10, width = 5, height = 4)







python inheritance






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 19 '18 at 13:43









stovfl

7,79631031




7,79631031










asked Nov 19 '18 at 13:17









Riska KurniantoRiska Kurnianto

215




215













  • Probably helpful: docs.python.org/3.7/library/functions.html#super

    – colidyre
    Nov 19 '18 at 13:20











  • I try someting like this, but still not work.. <code> class TwoDim(): def __init__(self, length, width): self.length = length self.width = width self.square = self.length * self.width class ThreeDim(TwoDim): def __init__(self, length, width, height): super().__init__(self, length, width, height) self.height = height self.volume = self.square * self.height block = ThreeDim(length = 10, width = 5, height = 4) </code>

    – Riska Kurnianto
    Nov 19 '18 at 13:33











  • super().__init__(self, length, width, height) -> super().__init__(self, length, width)

    – Corentin Limier
    Nov 19 '18 at 13:51





















  • Probably helpful: docs.python.org/3.7/library/functions.html#super

    – colidyre
    Nov 19 '18 at 13:20











  • I try someting like this, but still not work.. <code> class TwoDim(): def __init__(self, length, width): self.length = length self.width = width self.square = self.length * self.width class ThreeDim(TwoDim): def __init__(self, length, width, height): super().__init__(self, length, width, height) self.height = height self.volume = self.square * self.height block = ThreeDim(length = 10, width = 5, height = 4) </code>

    – Riska Kurnianto
    Nov 19 '18 at 13:33











  • super().__init__(self, length, width, height) -> super().__init__(self, length, width)

    – Corentin Limier
    Nov 19 '18 at 13:51



















Probably helpful: docs.python.org/3.7/library/functions.html#super

– colidyre
Nov 19 '18 at 13:20





Probably helpful: docs.python.org/3.7/library/functions.html#super

– colidyre
Nov 19 '18 at 13:20













I try someting like this, but still not work.. <code> class TwoDim(): def __init__(self, length, width): self.length = length self.width = width self.square = self.length * self.width class ThreeDim(TwoDim): def __init__(self, length, width, height): super().__init__(self, length, width, height) self.height = height self.volume = self.square * self.height block = ThreeDim(length = 10, width = 5, height = 4) </code>

– Riska Kurnianto
Nov 19 '18 at 13:33





I try someting like this, but still not work.. <code> class TwoDim(): def __init__(self, length, width): self.length = length self.width = width self.square = self.length * self.width class ThreeDim(TwoDim): def __init__(self, length, width, height): super().__init__(self, length, width, height) self.height = height self.volume = self.square * self.height block = ThreeDim(length = 10, width = 5, height = 4) </code>

– Riska Kurnianto
Nov 19 '18 at 13:33













super().__init__(self, length, width, height) -> super().__init__(self, length, width)

– Corentin Limier
Nov 19 '18 at 13:51







super().__init__(self, length, width, height) -> super().__init__(self, length, width)

– Corentin Limier
Nov 19 '18 at 13:51














1 Answer
1






active

oldest

votes


















1














Python 3 :



class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super().__init__(length, width)
self.height = height
self.volume = self.square * self.height


Python 2 :



class ThreeDim(TwoDim, object):
def __init__(self, length, width, height):
super(ThreeDim, self).__init__(length, width)
self.height = height
self.volume = self.square * self.height


Or :



class TwoDim(object):
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super(ThreeDim, self).__init__(length, width)
self.height = height
self.volume = self.square * self.height


(classes need to inherit from object to use super() and that's one of the reason why python3 syntax is easier.)



Don't forget the self parameter on TwoDim :



class TwoDim():
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width





share|improve this answer


























  • Thank you so much, now i learn great from this. big thanks..

    – Riska Kurnianto
    Nov 19 '18 at 13:37











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1 Answer
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active

oldest

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1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









1














Python 3 :



class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super().__init__(length, width)
self.height = height
self.volume = self.square * self.height


Python 2 :



class ThreeDim(TwoDim, object):
def __init__(self, length, width, height):
super(ThreeDim, self).__init__(length, width)
self.height = height
self.volume = self.square * self.height


Or :



class TwoDim(object):
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super(ThreeDim, self).__init__(length, width)
self.height = height
self.volume = self.square * self.height


(classes need to inherit from object to use super() and that's one of the reason why python3 syntax is easier.)



Don't forget the self parameter on TwoDim :



class TwoDim():
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width





share|improve this answer


























  • Thank you so much, now i learn great from this. big thanks..

    – Riska Kurnianto
    Nov 19 '18 at 13:37
















1














Python 3 :



class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super().__init__(length, width)
self.height = height
self.volume = self.square * self.height


Python 2 :



class ThreeDim(TwoDim, object):
def __init__(self, length, width, height):
super(ThreeDim, self).__init__(length, width)
self.height = height
self.volume = self.square * self.height


Or :



class TwoDim(object):
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super(ThreeDim, self).__init__(length, width)
self.height = height
self.volume = self.square * self.height


(classes need to inherit from object to use super() and that's one of the reason why python3 syntax is easier.)



Don't forget the self parameter on TwoDim :



class TwoDim():
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width





share|improve this answer


























  • Thank you so much, now i learn great from this. big thanks..

    – Riska Kurnianto
    Nov 19 '18 at 13:37














1












1








1







Python 3 :



class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super().__init__(length, width)
self.height = height
self.volume = self.square * self.height


Python 2 :



class ThreeDim(TwoDim, object):
def __init__(self, length, width, height):
super(ThreeDim, self).__init__(length, width)
self.height = height
self.volume = self.square * self.height


Or :



class TwoDim(object):
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super(ThreeDim, self).__init__(length, width)
self.height = height
self.volume = self.square * self.height


(classes need to inherit from object to use super() and that's one of the reason why python3 syntax is easier.)



Don't forget the self parameter on TwoDim :



class TwoDim():
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width





share|improve this answer















Python 3 :



class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super().__init__(length, width)
self.height = height
self.volume = self.square * self.height


Python 2 :



class ThreeDim(TwoDim, object):
def __init__(self, length, width, height):
super(ThreeDim, self).__init__(length, width)
self.height = height
self.volume = self.square * self.height


Or :



class TwoDim(object):
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width

class ThreeDim(TwoDim):
def __init__(self, length, width, height):
super(ThreeDim, self).__init__(length, width)
self.height = height
self.volume = self.square * self.height


(classes need to inherit from object to use super() and that's one of the reason why python3 syntax is easier.)



Don't forget the self parameter on TwoDim :



class TwoDim():
def __init__(self, length, width):
self.length = length
self.width = width
self.square = self.length * self.width






share|improve this answer














share|improve this answer



share|improve this answer








edited Nov 19 '18 at 13:37

























answered Nov 19 '18 at 13:24









Corentin LimierCorentin Limier

2,054159




2,054159













  • Thank you so much, now i learn great from this. big thanks..

    – Riska Kurnianto
    Nov 19 '18 at 13:37



















  • Thank you so much, now i learn great from this. big thanks..

    – Riska Kurnianto
    Nov 19 '18 at 13:37

















Thank you so much, now i learn great from this. big thanks..

– Riska Kurnianto
Nov 19 '18 at 13:37





Thank you so much, now i learn great from this. big thanks..

– Riska Kurnianto
Nov 19 '18 at 13:37




















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