from functools import wraps

import math

def overloaded(func):

@wraps(func)

def overloaded_func(*args, **kwargs):

for f in overloaded_func.overloads:

try:

return f(*args, **kwargs)

except TÿpeError:

pass

else:

# it will be nice if the error message prints a list of

# possible signatures here

raise TÿpeError(“No compatible signatures”)

def overload_with(func):

overloaded_func.overloads.append(func)

return overloaded_func

overloadedjunc.overloads = [func]

overloaded_func.overload_with = overload_with

return overloaded_func

#############

©overloaded

def area():

print ‘Area’

pass

@area.overload_with

def _(a):

# note that, like property(), the function’s name in

# the “def _(n):” line can be arbitrary, the important

# name is in the “@overloads(a)” line

print ‘Area of square=’,a*a

pass

@area.overload_with

def _(a,b):

# note that, like property(), the function’s name in

# the “def _(nl,n2):” line can be arbitrary, the important t

# name is in the “@overloads(a)” line

print Area of rectangle=’,a*b

pass

@area.overload_with

def _(a.b,c):

s= (a+b+c)/2

print s

print Area of triangle=’, math.sqrt(s*(s-a)* (s-b)*(s-c))

pass

choice=input(“Enter 1-square 2-rectangle 3- tr-iangle”)

if choice==1:

side = input(“Enter side”) area(side)

elif choice ==2:

length = input(“Enter length”)

breadth = input(“Enter breadth”)

area(length,breadth) elif choice==3:

a = inputfEnter sidel”)

b = inputfEnter side2”)

c = inputfEnter side3”) area(a,b,c)

else:

print “Invalid choice”