Function: Load Book
Function: Load Book
FUNCTION READFROMFILE (FNAME)
STRING BKLIST[]
INTEGER I
WHILE .NOT. EOF()
Read From File
Store into BKLIST[I]
I=I+1
END WHILE
END FUNCTION
FUNCTION COMPLETEDBOOKS (BKLIST)
INTEGER NUM=0, NUMCBOOKS=0, TOTALPAGES=0
PRINT “Completed Books : ”
FOR I = 0 TO LEN(BKLIST)
ROWS=SPLIT(BKLIST[i],”,”)
STRTYPE= LOWER(ROWS[3])
IF STRTYPE==”r” THEN
Print book details
TOTALPAGES= TOTALPAGES+ ROWS[2]
NUMCBOOKS+=1
END IF
NUM +=1
NEXT I
IF NUMCBOOKS==0 THEN
PRINT “No Completed Successfully”
ELSE
PRINT “Total Pages for “, NUM, “ books is “, TOTALPAGES
END
END FUNCTION
# Name : Your Name
# Date : 25-03-2017
# Description : This project is used to track books, change the status of the book and update the file
# This menu function is used to display the menu and get the user choice and return back to main
def menu():
print(“Menu :”)
print(“R – List required books”)
print(“C – List completed books”)
print(“A – Add new book”)
print(“M – Mark a book as completed”)
print(“Q – Quit”)
return (input(“>>>”)).strip()
# This readFromFile function is used to load the book details from the input file
def readFromFile(fName):
bkList=[]
try:
rows=open(fName,”r”)
for row in rows:
row=row.strip()
if(len(row)!=0): # check the record is empty or not
bkList.append(row) # add the book details into list
rows.close() # close the file
return bkList
except :
print(“nInvalid file name, please recheck the file name with pathn”)
return bkList
# This function is ised to display the required status of the books
def requiredBooks(bkList):
num=0
numRBooks=0
totalPages=0
for i in range(0,len(bkList)):
if i==0:
print(“Required books : “)
rows=bkList[i].split(“,”)
strType=rows[3].lower()
if strType==’r’:
print(num,”. “,rows[0].ljust(40),” by “,rows[1],”t”,rows[2],” pages”)
totalPages+=int(rows[2])
numRBooks+=1
num+=1
if numRBooks==0 :
print(“nNo required booksn“)
else:
print(“Total pages for “,numRBooks,” books : “,totalPages)
# This function is used to display the completed status of the books
def completedBooks(bkList):
num=0
numCBooks=0
totalPages=0
for i in range(0,len(bkList)):
if i==0:
print(“Completed books : “)
rows=bkList[i].split(“,”)
strType=rows[3].lower()
if strType==’c’:
print(num,”. “,rows[0].ljust(40),” by “,rows[1],”t”,rows[2],” pages”)
totalPages+=int(rows[2])
numCBooks+=1
num+=1
if numCBooks==0 :
print(“nNo completed books foundn”)
else:
print(“Total pages for “,numCBooks,” books : “,totalPages)
# This function is used to sort the book list which is ordered by book title
def sortingBkList(bkList):
for i in range(0,len(bkList)):
rowLineI=bkList[i].split(“,”)
for j in range (i+1,len(bkList)):
rowLineJ=bkList[j].split(“,”)
if rowLineI[0] > rowLineJ[0] :
tRow=bkList[i]
bkList[i]=bkList[j]
bkList[j]=tRow
return bkList
# This function is used to read the book title from user
def getTitle():
title=””
while True:
try:
title=input(“Title : “)
Function: Complete Book
title=title.strip()
if len(title) == 0:
print(“Input can not be blank”) #If user enter empty string, it displays an error message
else:
break
except:
print(“Invalid data type”)
return title
# This function is used to read the book author from user
def getAuthor():
author=””
while True:
try:
author=input(“Author : “)
author=author.strip()
if len(author) == 0:
print(“Input can not be blank”)
else:
break
except:
print(“Invalid data type”)
return author
# This function is used to read the page number
def getNumOfPages():
pages=0
while True:
try:
pages=int(input(“Pages : “))
if pages<0: # check the input is greater than zero or not
print(“Number must be >=0”) # if user input is less than zero, it displays an error message
else:
break
except:
print(“Invalid input; enter a valid number”)
return pages
#This function is used to get the number of required books from the book list
def getNumOfRequiredBooks(bkList):
numRBooks=0
for i in range(0,len(bkList)):
rows=bkList[i].split(“,”)
strType=rows[3].lower()
if strType==’r’:
numRBooks+=1
return numRBooks
#This function is used to mark the required books to completed
def markAsCompleted(bkList):
try:
numRBooks=getNumOfRequiredBooks(bkList)
if numRBooks != 0:
requiredBooks(bkList)
print(“Enter the number of a book to mark as completed”)
pos=int(input(“>>>”))
num=0
flag=0
if (pos>=0 and pos<len(bkList)) :
print(pos)
for i in range(0,len(bkList)):
rows=bkList[i].split(“,”)
strType=rows[3].lower()
if strType==’r’ and num==pos:
flag=1
num+=1
if flag==0:
print(“That book is already completed”)
else:
rows=bkList[pos].split(“,”)
tBook=rows[0] +”,”+rows[1]+”,”+str(rows[2])+”,c”
bkList[pos]=tBook
print(rows[0],” by “,rows[1],” marked as completed”)
else:
print(“Invalid book number”)
else:
print(“No required books”)
return bkList
except:
print(“Invalid input; enter a valid number”)
#This is the main program
def main():
fileName=”books.csv”
bookList=[]
print(“Reading List 1.0 – by Lindsay Ward”) # display the welcome message
bookList=readFromFile(fileName)
print(len(bookList),” books loaded from “, fileName)
userChoice=”
while True:
try:
userChoice=menu()
userChoice=userChoice.lower()
bookList=sortingBkList(bookList)
if(userChoice==”q”): # if user enters q, the control exits from this loop
break
elif (userChoice==”r”): # if user enters r, display the required books
requiredBooks(bookList)
elif (userChoice==”c”): # if user enters c, display the completed books
completedBooks(bookList)
elif (userChoice==”a”): # if user enters a, add the new books
bkTitle=getTitle()
bkAuthor=getAuthor()
bkPages=getNumOfPages()
tBook=bkTitle +”,”+bkAuthor+”,”+str(bkPages)+”,r”
bookList.append(tBook) #add the new books details into book list
print(bkTitle+” by “+ bkAuthor+”, (“+str(bkPages)+”) added to readling list”)
elif (userChoice==”m”):
bookList=markAsCompleted(bookList) # mark as completed
else:
print(“Invalid menu choice”) # if user enter except the above choice, displays an error message
except :
print(“Invalid entry, please retry it”);
sFile=open(fileName,”w”) # open a file as write mode (overwriting)
for i in range(0,len(bookList)):
sFile.write(bookList[i]+”n”) #write the book details into books.csv file
sFile.close()
print(len(bookList),” books saved to “,fileName)
print(“nHave a nice day :)”); # display the greeting message.
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