Question

Write a program in Python that defines and calls the following user-defined functions:

1. Add_Book(): Takes the details of the books and adds them to a CSV file ‘Book. csv'. Each record consists of a list with field elements such as book_ID, B_name and pub to store book ID, book name and publisher, respectively.
2. Search_Book(): Takes publisher name as input and counts and displays the number of books published by them. 

Answer 1

import csv
def Add_Book():
         bid=""
         bname=""
         pub=""
         f=open(“Book.csv”,"w” newline=")
         bookwriter=csv.writer(f)
         ans="y’
         bookrec=[]
           while ans=='y':
                   bid=input(“Enter book id :")
                   bname=input(“Enter book name :")
                   pub= input(“Enter publisher :")
                   rec=( bid,bname,pub)
                   bookrec.append(rec)
                   ans=input(“Continue(y/n)”)
         bookwriter.writerows(bookrec)
         f.close()
def Search_Book():
          count=0
           pub=""
           p=""
           pub=input(“Enter publisher name to search :")
           with open(“Book.csv”,"r”, newline =")
as fh:
                 breader=csv.reader(fh)
                    for rec in breader:
                     p=str(rec[2])
                        if p==pub:
                  count+=1
print(“No. of books published by “, pub,”=" count)
fh.close()