I am working on problem 13-11 from Core Python Programming (2nd Edition). For
the problem, I am supposed to create the foundations of an e-commerce engine
for a B2C business-to-consumer) retailer. I need to create a class that
represents the customer called User, a class for items in inventory called
Item, and a shopping cart class called Cart. I call my Item class Widget
because I like the word. Multiple widgets can go in carts, and a User can have
multiple Carts. Here is what I have written so far:
#!/usr/bin/python
class Widget(object):
pass
class Cart(object):
def __init__(self,name):
self.name = name
print "Created " + self.name
class User(object):
def __init__(self,name="John Doe"):
self.name = name
print "Hello " + self.name + "!"
self.cart_number = 0
self.cart_list = []
def make_cart(self,cart_name):
cart = Cart(cart_name)
self.cart_number = self.cart_number + 1
self.cart_list.append(cart.name)
def carts_info(self):
print "You have %d carts!" % self.cart_number
for i, c in enumerate(self.cart_list):
print "%d %s" % (i+1, c)
if __name__ == '__main__':
user_name = raw_input("Enter your name: ")
user = User(user_name)
print "You can "
print "1) Create a cart"
print "2) Buy a widget"
print "3) List your carts"
print "4) Quit"
while True:
while True:
choice = raw_input("Pick an option: ")
try:
choice_int = int(choice)
break
except ValueError:
print "Invalid choice!"
print "Try again!"
if choice_int == 1:
cart_name = raw_input("Enter the name of your cart: ")
user.make_cart(cart_name)
elif choice_int == 2:
print "I bought a widget."
elif choice_int == 3:
user.carts_info()
elif choice_int == 4:
print "Goodbye!"
break
else:
print "Invalid Choice!"
print "Try Again!"
I am not sure how to handle putting Widgets into a Cart. Somehow, I need the
user to be able to select the Cart he or she wants and then put Widgets in it.
Any hints?
Thanks!
_______________________________________________
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
