import os
ClearScreen = os.system('clear')
class library:
def __init__(self):
LibCode = Title = Price =''
FileName = ''
def lib_method(self):
LibCode = raw_input('Enter the library code: ')
Title = raw_input('Enter the title: ')
Price = raw_input('Enter the price( in $): ')
return LibCode,Title,Price
def empty_file_method(self, FileName):
File = open(FileName,'a')
File.seek(0,2)
FileLen = File.tell()
if FileLen == 0L:
print
print
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxx FILE ALREADY EMPTY xxxxxxx'
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print
print
else:
File.truncate(0)
if FileName == 'BookDetails':
print
print
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxx ALL BOOK RECORDS DELETED xxxxxxx'
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print
print
else:
print
print
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxx ALL SOFTAWARE RECORDS DELETED xxxxxxx'
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print
print
File.close()
def clear_screen_method(self):
KeyInput = 0
while not KeyInput:
print
ch = raw_input('Press Enter to continue ')
if ch != '':
print
print
print "Wrong key pressed. You can only press Enter"
else:
ClearScreen = os.system('clear')
KeyInput = 1
class books(library):
def __init__(self):
Author = Publisher = pageCount = ISBN = ''
def bks_method(self):
BkFile = open('BookDetails', 'a')
libM = self.lib_method()
BkFile.write(libM[0] + ',')
BkFile.write(libM[1] + ', ')
Author = raw_input("Enter the name of the author: ")
BkFile.write(Author + ',')
Publisher = raw_input("Enter the name of the publisher: ")
BkFile.write(Publisher + ',')
ISBN = raw_input("Enter the ISBN: ")
BkFile.write(ISBN + ',')
PageCount = raw_input("Enter the page count: ")
BkFile.write(PageCount + ',')
BkFile.write(libM[2] + '\n')
BkFile.close()
print '''
Library Code: %s
Title: %s
Author: %s
Publisher: %s
ISBN: %s
Page count: %s
price: %s''' % (libM[0],libM[1], Author, Publisher, ISBN, PageCount, libM[2])
def bks_display(self):
BkFile = open('BookDetails','a')
BkFile.seek(0,2)
BkFileLen = BkFile.tell()
if BkFileLen == 0L:
print
print
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxx NO RECORDS AVAILABLE xxxxxxxxxxxxxxxx'
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print
print
BkFile.close()
else:
BkFile = open('BookDetails','r')
print
print
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxx BOOK DETAILS xxxxxxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print
print
end = 0
record = 1
while not end:
BkDet = BkFile.readline()
if BkDet != '':
print
print "Record number: %s" % (record)
print "================="
print BkDet
record = record + 1
else:
print
print
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxx END OF FILE xxxxxxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print
print
BkFile.close()
class software(library):
def __init__(self):
ProductOf = Size = ''
def sws_method(self):
SwFile = open("SoftwareDetails",'a')
libM = self.lib_method()
SwFile.write(libM[0] + ',')
SwFile.write(libM[1] + ',')
ProductOf = raw_input("Enter the name of the software vendor")
SwFile.write(ProductOf + ',')
Size = raw_input("Enter the size of the software (in MB): ")
SwFile.write(Size + ',')
SwFile.write(libM[2] + '\n')
SwFile.close()
print '''
You have entered the following details for a book:
=================================================
Library code: %s
Title: %s
Vendor: %s
Size: %sMB
Price: $%s''' % (libM[0],libM[1],ProductOf,Size,libM[2])
def sws_display(self):
SwFile = open("SoftwareDetails",'a')
SwFile.seek(0,2)
SwFileLen = SwFile.tell()
if SwFileLen == 0L:
print
print
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxx NO RECORDS AVAILABLE xxxxxxxxxxxxxxxxx'
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print
print
SwFile.close()
else:
SwFile = open('SoftwareDetails','r')
print
print
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxx SOFTWARE DETAILS xxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print
print
SwFile = open("SoftwareDetails",'r')
end = 0
record = 1
while not end:
SwDet = SwFile.readline()
if SwDet != '':
print
print "Record number: %s " % (record)
print "==================="
print SwDet
record = record + 1
else:
print
print
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxx END OF FILE xxxxxxxxxxxxxxxxxxxxxxxxx'
print 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
print
print
end = 1
SwFile.close()
def MainMenu():
MenuItems = '''
<#><#><#><#><#><#><#><#><#>
<#><#><#><#><#><#><#><#><#>
<#> <#>
<#> Techsity university <#>
<#> <#>
<#><#><#><#><#><#><#><#><#>
<#><#><#><#><#><#><#><#><#>
MAIN MENU
===========
1 Enter details for books
2 Enter details for software
3 View details of books
4 View details of software
5 Delete all book records
6 Delete all software records
7 Quit
Enter choice (1-7): '''
done = 0
while not done:
MenuChoice = raw_input(MenuItems)
ClearScreen = os.system('clear')
print 'You entered: %s ' % MenuChoice
if MenuChoice not in '1234567':
print
print 'Wrong choice. Enter 1,2,3,4,5,6 or 7'
print
else:
if MenuChoice == '7':
done = 1
if MenuChoice == '1':
print
print
print ' Enter Book Details'
print ' ==================='
print
bk.bks_method()
bk.clear_screen_method()
if MenuChoice == '2':
print
print
print ' Enter SOFTWARE Details'
print ' ======================='
print
sw.sws_method()
sw.clear_screen_method()
if MenuChoice == '3':
bk.bks_display()
bk.clear_screen_method
if MenuChoice == '4':
sw.sws_display()
sw.clear_screen_method()
if MenuChoice == '5':
bk.empty_file_method('BookDetails')
if MenuChoice == '6':
sw.empty_file_method('SoftwareDetails')
sw.clear_screen_method()
bk = books()
sw = software()
MainMenu()Error Code isAttributeError: books instance has no attribute 'bks_method'But i have define the class on line 76 def bks_method(self):
The problem is while calling the class function on def MainMenu()
