An example of class in python.
class Triangle():
h=0.
w=0.
def __init__(self,h=0.0,w=0.0):
self.h=h
self.w=w
def setHeight(self,h):
self.h=h
def getHeight(self):
return self.h
def setWidth(self,w):
self.w=w
def getWidth(self):
return self.w
def Area(self):
return self.w*self.h/2.
triangle=Triangle(2.,3.)
print triangle.Area()