1. first let's check SVG output in jupyter



In [34]:

    
%matplotlib inline
%config InlineBackend.figure_format = 'svg'
url_svg = 'http://clipartist.net/social/clipartist.net/B/base_tux_g_v_linux.svg'
import matplotlib.pyplot as plt
from IPython.display import SVG, display
# testing svg inside jupyter next one does not support 
#display(SVG(url=url_svg))
from IPython.core.display import HTML
HTML('<img src="' + url_svg + '" width=100 height=20/>')









    Out[34]:



In [5]:

    
float(i)









    Out[5]:





5.0



In [4]:

    
type(x)









    Out[4]:





__main__.Sample



In [6]:

    
class Point(object):
    """
    A simple 2D cartesian Point with x and y coordinates
    """
    
    def __init__(self,x=0.0,y=0.0):
        self.x = float(x)
        self.y = float(y)
        
    def __repr__(self):
        return ("x,y = {x},{y}".format(x=self.x,y=self.y))
    
    def move(self,newx,newy):
        """
        This method moves the point to newx,newy position
        """
        self.x = float(newx)
        self.y = float(newy)
        
    def moverel(self,dx,dy):
        """
        This method moves the point ny dx,dy relative to its current position
        """
        self.x += float(dx)
        self.y += float(dy)



In [21]:

    
P0 = Point()
P1 = Point(1,2)
P2 = Point(3,5)
print("P0 {p0}, P1 {p1} and P2 {p2}".format(p0=P0,p1=P1,p2=P2))









    



P0 x,y = 0.0,0.0, P1 x,y = 1.0,2.0 and P2 x,y = 3.0,5.0



In [22]:

    
P1.move(4,4)
P2.moverel(1,-1)
print("P1 {p1} and P2 {p2}".format(p1=P1,p2=P2))
P1==P2









    



P1 x,y = 4.0,4.0 and P2 x,y = 4.0,4.0






    Out[22]:





False

Point inheritance

let's add a name attribute to our Point class



In [9]:

    
class NamedPoint(Point):
    
    def __init__(self,name,x,y):
        Point.__init__(self,x,y)
        self.name = name
        
    def __repr__(self):
        return ("{name} : ".format(name=self.name) + Point.__repr__(self))



In [10]:

    
P3 = NamedPoint('P3',3,3)
print P3









    



P3 : x,y = 3.0,3.0



In [55]:

    
P3.move(1,1)
print P3









    



P3 : x,y = 1,1



In [56]:

    
type(P3)









    Out[56]:





__main__.NamedPoint



In [16]:

    
P2==P1









    Out[16]:





False



In [12]:

    
P4









    Out[12]:





P3 : x,y = 3.0,3.0



In [13]:

    
type(P4)









    Out[13]:





__main__.NamedPoint



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