bridge$-$demo.py

Rectangle Class $($with comparison code$)$

In class, we created a very small product class with UPC code, description, and price. This code creates two products, then prints which has the smaller price.

The code illustrates the usage of $\_\_$init$\_\_,\_\_$str$\_\_,$ and the comparison functions $\_\_$eq$\_\_$ and $\_\_$gt$\_\_.$ There are six total comparison functions, but you only need to implement three $(\_\_$eq$\_\_,$ either $\_\_$gt$\_\_$ or $\_\_$lt$\_\_,$ either $\_\_$ge$\_\_$ or $\_\_$le$\_\_).$

class Product$($object$)$:

# UPC,Description,Price

def $\_\_$init$\_\_($self$,$UPC,desc,price$)$:

self.UPC $=$ UPC

self.description $=$ desc

self.price $=$ price

def $\_\_$str$\_\_($self$)$:

s $=$ self.UPC $+","+$ self.description $+","$

s $+=$ str$($self$.$price$)$

return s

def $\_\_$gt$\_\_($self$,$other$)$:

return self.price $>$ other.price

def $\_\_$eq$\_\_($self$,$other$)$:

return self.price $==$ other.price

p$1=$ Product$("0000012345",$"Green Beans",$1\mathrm{.}49)$

p$2=$ Product$("0000023456","1/2$ Gallon Milk",$3\mathrm{.}79)$

print$($p$1)$

print$($p$2)$

print$($p$1==$ p$1)$

print$($p$1==$ p$2)$

if $($p$1<$ p$2)$:

print$($p$1.$description,"is less expensive"$)$

else:

print$($p$2.$description,"is less expensive"$)$