Write a program to enter the following records in a binary file: Item No Item_Name Qty Price

Q. Write a program to enter the following records in a binary file:

Item No        integer

Item_Name     string

Qty            integer

Price          float

Number of records to be entered should be accepted from the user. 
Read the file to display the records in the following format:

Item No:

Item Name :        

Quantity:

Price per item:

Amount:        ( to be calculated as Price * Qty)

You can understand by Watching video :-

Answer :-

import pickle

file = open("Pathwalla.dat","wb")

while True :
	dic = { }
	Item_No = int(input("Enter Item no.")) 
	Item_Name = input("Enter Item name :-")
	Qty = int(input("Enter Quantity :- "))
	Price = float(input("Enter price :-"))
	
	dic[ "Item_No" ] =  Item_No
	dic[ "Item_Name" ] =  Item_Name 
	dic[ "Qty" ] =  Qty 
	dic[ "Price" ] = Price 
	pickle.dump( dic , file )
	print()
	ans = input("Do you want to quit Enter [ Y/N ] :-")
	if ans == "y" or ans == "Y" :
		break
	print()

file.close()
print()
file = open("Pathwalla.dat","rb")

try :
        while True :
                dic = pickle.load(file)
                print( "Item No. :","\t", dic[ "Item_No" ] )
                print( "Item Name :","\t", dic[ "Item_Name" ] )
                print( "Quantity :","\t", dic[ "Qty" ] )
                print( "Price of one :","\t",dic[ "Price" ] )
                print( "Amount :", "\t" , dic[ "Qty" ] * dic[ "Price" ] )
                print()
except :
	file.close()

Output :-

Enter Item no.3544
Enter Item name :-Path
Enter Quantity :- 74
Enter price :-48.23

Do you want to quit Enter [ Y/N ] :-n

Enter Item no.49978

Enter Item name :-Walla
Enter Quantity :- 74
Enter price :-12.65

Do you want to quit Enter [ Y/N ] :-n

Enter Item no.5432
Enter Item name :-Portal
Enter Quantity :- 98
Enter price :-18.46

Do you want to quit Enter [ Y/N ] :-n

Enter Item no.65654
Enter Item name :-Express
Enter Quantity :- 65496
Enter price :-0.59

Do you want to quit Enter [ Y/N ] :-y

Item No. : 3544
Item Name : Path
Quantity : 74
Price of one : 48.23
Amount : 3569.02

Item No. : 49978
Item Name : Walla
Quantity : 74
Price of one : 12.65
Amount : 936.1

Item No. : 5432
Item Name : Portal
Quantity : 98
Price of one : 18.46
Amount : 1809.0800000000002

Item No. : 65654
Item Name : Express
Quantity : 65496
Price of one : 0.59
Amount : 38642.64

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