1 #Inventory Management System 2
2 #SaurontheMighty
3
4
5 #Dictionaries
6 unit_price={}
7 description={}
8 stock={}
9
10 #Open file with stock
11 details = open("stock.txt","r")
12
13 #First line of the file is the number of items
14 no_items = int((details.readline()).rstrip("\n"))
15
16 #Add items to dictionaries
17 for i in range(0,no_items):
18 line = (details.readline()).rstrip("\n")
19 x1,x2 = line.split("#")
20 x1=int(x1)
21 x2=float(x2)
22 unit_price.update({x1: x2})
23
24 for i in range(0,no_items):
25 line = (details.readline()).rstrip("\n")
26 x1,x2 = line.split("#")
27 x1=int(x1)
28 description.update({x1: x2})
29
30 for i in range(0,no_items):
31 line = (details.readline()).rstrip("\n")
32 x1,x2 = line.split("#")
33 x1=int(x1)
34 x2=int(x2)
35 stock.update({x1: x2})
36
37 details.close()
38
39 #List to store the items purchased
40 cart=[]
41
42 c="y" #Runs the while loop as long as user wants
43
44
45 #Instructions
46 print("Welcome to IMS")
47 print()
48 print("A-Add an item")
49 print("R-Remove an item")
50 print("E-Edit specifics of an item")
51 print("L-List all items")
52 print("I-Inquire about a part")
53 print("P-Purchase")
54 print("C-Checkout")
55 print("S-Show all parts purchased")
56 print("Q-Quit")
57 print("remove-Remove an item from the cart")
58 print("help-See all commands again")
59 print()
60
61
62 total_cost=0
63 flag=0 #To check if they have checked out
64
65
66 while(c!= "q" or c!= "Q"):
67 c= input("What would you like to do? ")
68
69 if(c=="q" or c=="Q"):
70 break
71
72 elif(c=="A" or c=="a"):#Add a part
73 p_no = int(input("Enter part number: "))
74 p_pr = float(input("Enter part price: "))
75 p_desc = input("Enter part description: ")
76 p_stock = int(input("Enter part stock: "))
77
78 m=0
79 for i in range(0,len(unit_price)):
80 if(p_no in unit_price):
81 p_no+=1
82 m=1
83 if(m==1):
84 print()
85 print("That part number already exists :(, changing value to ",p_no)
86
87 unit_price.update({p_no: p_pr})
88 description.update({p_no: p_desc})
89 if(p_stock > -1):
90 stock.update({p_no: p_stock})
91 else:
92 p_stock = 0
93 stock.update({p_no: p_stock})
94 print("The stock of an item cannot be negative, the stock has been set to 0.")
95 print()
96 print("Part number: ",p_no," Description: ",description.get(p_no)," Price: ",unit_price.get(p_no)," Stock: ",stock.get(p_no))
97 print("Part was added successfully!")
98 print()
99
100 elif(c=="E" or c=="e"):#Edit a part
101 print()
102 p_no = int(input("Enter part number: "))
103 if(p_no in unit_price):
104 p_pr = float(input("Enter part price: "))
105 p_desc = input("Enter part description: ")
106 p_stock = int(input("Enter part stock: "))
107
108 unit_price.update({p_no: p_pr})
109 description.update({p_no: p_desc})
110 stock.update({p_no: p_stock})
111
112 else:
113 print("That item does not exist, to add an item use a")
114 print()
115
116
117 elif(c=="R" or c=="r"):#Remove a part
118 print()
119 p_no = int(input("Enter part number: "))
120 if(p_no in unit_price):
121 are_you_sure = input("Are you sure you want to remove that item(y/n)? ")
122 if(are_you_sure=="y" or are_you_sure=="Y"):
123 unit_price.pop(p_no)
124 description.pop(p_no)
125 stock.pop(p_no)
126 print("Item successfully removed!")
127 print()
128 else:
129 print("Sorry, we don't have such an item!")
130 print()
131
132 elif(c=="L" or c=="l"):#List all the parts
133 print()
134 print("Parts and their prices: ",unit_price)
135 print("Descriptions: ",description)
136 print("Stock left of Item: ",stock)
137 print()
138
139 elif(c=="I" or c=="i"):#Inquire about a part
140 print()
141 p_no=int(input("Enter Part Number: "))
142 if(p_no in unit_price):
143 print()
144 print("Part number: ",p_no," Description: ",description.get(p_no)," Price: ",unit_price.get(p_no)," Stock: ",stock.get(p_no))
145 if(stock.get(p_no)<3 and stock.get(p_no)!=0):
146 print("Only ",stock.get(p_no)," remaining! Hurry!")
147 print()
148 else:
149 print("Sorry we don't have such an item!")
150 print()
151
152 elif(c=="P" or c=="p"):#Purchase a part
153 print()
154 p_no = int(input("Enter Part number: "))
155 if(p_no in unit_price):
156 if(flag==1):
157 flag=0
158 stock_current = stock.get(p_no)
159 if(stock_current>0):
160 stock_current = stock.get(p_no)
161 stock[p_no] = stock_current-1
162 item_price = unit_price.get(p_no)
163 total_cost = total_cost+item_price
164 print(description.get(p_no),"added to cart: ","$",item_price)
165 cart.append(p_no)#Stores item in cart
166 else:
167 print("Sorry! We don't have that item in stock!")
168 else:
169 print("Sorry! We don't have such an item!")
170 print()
171
172 elif(c=="C" or c=="c"):#Check out
173 print()
174 print("You bought the following parts: ",cart)
175 print("Total: ","$",round(total_cost,2))
176 tax= round(0.13*total_cost,2)
177 print("Tax is 13%: ","$",tax)
178 total = round(total_cost+tax,2)
179 print("After Tax: ","$",total)
180 total_cost=0
181 flag=1
182 print()
183 print("You can still purchase items after check out, your cart has been reset. To quit press q")
184 print()
185
186 elif(c=="help"):#Display all commands
187 print()
188 print("Help Centre")
189 print("A-Add an item")
190 print("R-Remove an item")
191 print("E-Edit specifics of an item")
192 print("L-List all items")
193 print("I-Inquire about a part")
194 print("P-Purchase")
195 print("C-Checkout")
196 print("S-Show all parts purchased")
197 print("remove-Remove an item from the cart")
198 print("help-See all commands again")
199 print("If you have any other questions or concerns please contact the manager.")
200 print()
201
202 elif(c=="remove" or c=="Remove"):#To remove an item from the cart
203 print()
204 are_you_sure = input("Are you sure you want to remove an item from the cart(y/n)? ")
205 if(are_you_sure=="y"):
206 p_no = int(input("Enter part number to remove from cart: "))
207 if(p_no in cart):
208 stock_current = stock.get(p_no)
209 stock[p_no] = stock_current+1
210 item_price = unit_price.get(p_no)
211 total_cost = total_cost-item_price
212 j=0
213 for i in range(0,len(cart)):#To find the index of the part in the list cart
214 if(i==p_no):
215 j=i
216
217 cart.pop(j)
218 print(description.get(p_no),"removed from cart: ")
219 print()
220 else:
221 print()
222 print("That item is not in your cart!")
223 print()
224
225 elif(c=="s" or c=="S"):#prints list cart
226 print()
227 print(cart)
228 print()
229
230 else:
231 print()
232 print("ERROR! Contact manager for help!")
233 print()
234
235
236 #Outputs total if the user quits without checking out
237 if(total_cost>0 and flag==0):
238 print()
239 print("You bought: ",cart)
240 print("Total: ","$",round(total_cost,2))
241 tax= round(0.13*total_cost,2)
242 print("Tax is 13%: ","$",tax)
243 total = round(total_cost+tax,2)
244 print("After Tax: ","$",total)
245
246 print()
247 print("Thank you for using IMS")
248
249 #Write the updated inventory to the file
250 details = open("stock.txt","w")
251 no_items=len(unit_price)
252 details.write(str(no_items)+"\n")
253 for i in range(0,no_items):
254 details.write(str(i+1)+"#"+str(unit_price[i+1])+"\n")
255
256 for i in range(0,no_items):
257 details.write(str(i+1)+"#"+description[i+1]+"\n")
258
259 for i in range(0,no_items):
260 details.write(str(i+1)+"#"+str(stock[i+1])+"\n")
261
262 details.close()
