Write a Python program for department library which has N books, write functions for following:
a) Delete the duplicate entries. b) Display books in ascending order based on cost of books. c) Count number of books with cost more than 500. d) Copy books in a new list which has cost less than 500.
Programming Language: Python. IDE: Visual Studio Code ( VSC ). Present: go2collage.Download hole Program / Project code, by clicking following link:
Programming Code:
def DeleteDuplicates(Books):
# Deleting duplicate Entrise
Final_Books_List = []
for num in Books:
if num not in Final_Books_List:
Final_Books_List.append(num)
print("On removing Duplicates")
print(Final_Books_List)
def Sorting(Books, N):
# Sorting in Ascending order
for i in range(N):
for j in range(i+1, N):
if (Books[i][1] > Books[j][1]):
temp1 = Books[i][0]
Books [i][0] = Books[j][0]
Books [j][0] = temp1
temp2 = Books[i][1]
Books[i][1] = Books[j][1]
Books[j][1] = temp2
print("The Books are: ")
print(Books)
def MoreCost(Books, N):
# Counting number of books having > 500 cost
cnt = 0 # set count to zero (0)
for isbn in range(N):
if (Books[isbn][1] > 500):
cnt = cnt + 1
print("Number of Books having cost > 500 are: ", cnt)
def LessCost(Books, N):
# Count number of books having < 500 cost
cnt = 0
for isbn in range(N):
if(Books[isbn][1] < 500):
cnt = cnt + 1
new_List = [[0 for cost in range(2)] for isbn in range(cnt)]
for isbn in range(N):
if(Books[isbn][1] < 500):
new_List[isbn][0] = Books[isbn][0]
new_List[isbn][1] = Books[isbn][1]
print("\n Books having the cost less than 500 are follow: ")
print("\n ISBN \t COST")
for isbn in range(cnt):
print(" ",new_List[isbn][0],"\t",new_List[isbn][1])
N = int(input("Enter number of books: "))
Books = [[0 for cost in range(2)] for isbn in range(N)]
for isbn in range(N):
ISBN = int(input("Enter the ISBN: "))
Books [isbn][0] = ISBN
COST = int(input("Enter the cost: "))
Books [isbn][1] = COST
print("The Books are: ")
print(Books)
while(True):
print("\n ********** Department Library Books Demo **********")
print("\n 1. Delete Duplicate Entries")
print("2. Display Books in Ascending Order based on Cost books")
print("3. Display total Number of Books with cost more than 500")
print("4. Display new list which has cost less than 500")
print("5. Exit.")
print()
choice = int(input("Enter your choice: "))
if(choice == 1):
DeleteDuplicates(Books)
elif(choice == 2):
Sorting(Books, N)
elif(choice == 3):
MoreCost(Books, N)
elif(choice == 4):
LessCost(Books, N)
else:
print("Exit.")
break
Output:
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