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python3/en cleanup for single inheritance merge

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This commit is contained in:
Keith Miyake 2017-10-23 15:11:13 -07:00
parent 9b6d84309c
commit 55efb934b8
1 changed files with 5 additions and 15 deletions
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python3.html.markdown
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@ -785,7 +785,7 @@ class Superhero(Human):
self.superpowers = superpowers self.superpowers = superpowers
# The "super" function lets you access the parent class's methods # The "super" function lets you access the parent class's methods
# that are overwritten by the child, in this case, the __init__ method. # that are overridden by the child, in this case, the __init__ method.
# This calls the parent class constructor: # This calls the parent class constructor:
super().__init__(name) super().__init__(name)
@ -814,7 +814,7 @@ if __name__ == '__main__':
# => <class 'human.Human'>, <class 'object'>) # => <class 'human.Human'>, <class 'object'>)
# Calls parent method but uses its own class attribute # Calls parent method but uses its own class attribute
print(sup.get_species()) # => Superhero print(sup.get_species()) # => Superhuman
# Calls overloaded method # Calls overloaded method
print(sup.sing()) # => Dun, dun, DUN! print(sup.sing()) # => Dun, dun, DUN!
@ -838,6 +838,7 @@ if __name__ == '__main__':
#################################################### ####################################################
# Another class definition # Another class definition
# bat.py
class Bat: class Bat:
species = 'Baty' species = 'Baty'
@ -859,16 +860,13 @@ if __name__ == '__main__':
print(b.say('hello')) print(b.say('hello'))
print(b.fly) print(b.fly)
# To take advantage of modularization by file you could place the classes above in their own files,
# say, superhero.py and bat.py
# To import functions from other files use the following format # And yet another class definition that inherits from Superhero and Bat
# from "filename-without-extension" import "function-or-class"
# superhero.py # superhero.py
from superhero import Superhero from superhero import Superhero
from bat import Bat from bat import Bat
# Batman inherits from both Superhero and Bat # Define Batman as a child that inherits from both Superhero and Bat
class Batman(Superhero, Bat): class Batman(Superhero, Bat):
def __init__(self, *args, **kwargs): def __init__(self, *args, **kwargs):
@ -892,14 +890,6 @@ class Batman(Superhero, Bat):
if __name__ == '__main__': if __name__ == '__main__':
sup = Batman() sup = Batman()
# Instance type checks
if isinstance(sup, Superhero):
print('I am a superhero)
if isinstance(sup, Bat):
print('I am bat')
if type(sup) is Batman:
print('I am Batman')
# Get the Method Resolution search Order used by both getattr() and super(). # Get the Method Resolution search Order used by both getattr() and super().
# This attribute is dynamic and can be updated # This attribute is dynamic and can be updated
print(Batman.__mro__) # => (<class '__main__.Batman'>, print(Batman.__mro__) # => (<class '__main__.Batman'>,