Python inheritance add new init on child











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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 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 at 13:33










  • super().__init__(self, length, width, height) -> super().__init__(self, length, width)
    – Corentin Limier
    Nov 19 at 13:51

















up vote
-1
down vote

favorite












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 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 at 13:33










  • super().__init__(self, length, width, height) -> super().__init__(self, length, width)
    – Corentin Limier
    Nov 19 at 13:51















up vote
-1
down vote

favorite









up vote
-1
down vote

favorite











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 at 13:43









stovfl

7,2583931




7,2583931










asked Nov 19 at 13:17









Riska Kurnianto

63




63












  • Probably helpful: docs.python.org/3.7/library/functions.html#super
    – colidyre
    Nov 19 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 at 13:33










  • super().__init__(self, length, width, height) -> super().__init__(self, length, width)
    – Corentin Limier
    Nov 19 at 13:51




















  • Probably helpful: docs.python.org/3.7/library/functions.html#super
    – colidyre
    Nov 19 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 at 13:33










  • super().__init__(self, length, width, height) -> super().__init__(self, length, width)
    – Corentin Limier
    Nov 19 at 13:51


















Probably helpful: docs.python.org/3.7/library/functions.html#super
– colidyre
Nov 19 at 13:20




Probably helpful: docs.python.org/3.7/library/functions.html#super
– colidyre
Nov 19 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 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 at 13:33












super().__init__(self, length, width, height) -> super().__init__(self, length, width)
– Corentin Limier
Nov 19 at 13:51






super().__init__(self, length, width, height) -> super().__init__(self, length, width)
– Corentin Limier
Nov 19 at 13:51














1 Answer
1






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oldest

votes

















up vote
1
down vote













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 at 13:37











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1 Answer
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1 Answer
1






active

oldest

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oldest

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up vote
1
down vote













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 at 13:37















up vote
1
down vote













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 at 13:37













up vote
1
down vote










up vote
1
down vote









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 at 13:37

























answered Nov 19 at 13:24









Corentin Limier

1,871159




1,871159












  • Thank you so much, now i learn great from this. big thanks..
    – Riska Kurnianto
    Nov 19 at 13:37


















  • Thank you so much, now i learn great from this. big thanks..
    – Riska Kurnianto
    Nov 19 at 13:37
















Thank you so much, now i learn great from this. big thanks..
– Riska Kurnianto
Nov 19 at 13:37




Thank you so much, now i learn great from this. big thanks..
– Riska Kurnianto
Nov 19 at 13:37


















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