Extend a class python

# there is no extend keyword used in Python
# line #7 below is equivalent to "class Circle extends Shape" (in JAVA)

class Shape(object):
   pass

class Circle(Shape):   # in python we use superclass as arg to EXTEND Shape
   pass 

s = Shape()
c = Circle()
print(isinstance(s, Shape))
print(isinstance(c, Circle))
print(isinstance(c, Shape))
print(isinstance(s, Circle))
#  
# output
# True (s is an instance of Shape )
# True (c is an instance of Circle )
# True (c is also an instance of Shape )
# False (s is NOT an instance of Circle because Shape is a subclass )

Similar codes

89 votes151 views6 answers
Python csv reader
Python
-4 votes125 views10 answers
Cheat sheet python
Python
1 vote99 views1 answer
How to open dialog box to select files in python
Python
1 vote121 views1 answer
Python file.write is not writing whole line
Python
0 vote138 views1 answer
Python remove item from a list
Python
1 vote106 views1 answer
Python iterate over multidimensional dictionary
Python
0 vote98 views1 answer
Python multidimensional dictionary
Python
0 vote131 views1 answer
Smtp django
Python Django
9 votes102 views2 answers
How to loop through lines python
Python
0 vote99 views1 answer
Line plot python only years datetime index
Python