python - Trying to get a return statement to be formatted as list and then used by a class and then run through if statements - 


while true:     n=float(raw_input('please enter id '))     if n in range (1000,10000):          break     print 'id incorrect, please try again'  open("txt.txt") searchfile: #searching book     found = false     while not found:         b=str(raw_input('please enter book '))         if b == '':             break  # allow search-loop quit on no input         line in searchfile:             if b in line:                 print line                found = true               break       else:           print 'please try again'           searchfile.seek(0)  # reset file beginning next search class books:     '''class supplys books need them most'''   def __init__(self,id_number,book_title, author,avaliable):       self.id_number=id_number       self.book_title=book_title       self.author=author       self.avaliable=avaliable    def description(self):       print '%s %s %s %s'%         (self.id_number,self.book_title,self.author,self.avaliable)   def __getitem__(self,i):       return self.availiable[i]     print searchfile[3]   def is_avaliable(self):       if self.avaliable==0:           print 'taken'       else:           print 'you can have me'  lis = searchfile #using result searching book book_1 = books(lis[0], lis[1], lis[2], lis[3]) book_1.description() book_1.is_avaliable()

i have code, first section working fine, trying result of first section, regarding searching book section, printed output list.i trying access list in later code , use in class section. far reads through , returns this:

typeerror: 'file' object has no attribute 'getitem'

your lis = searchfile line assigns (now closed) file descriptor searchfile lis try access indices it. i'm assuming want instead is:

def search():     open('txt.txt') searchfile:         while true:             b = str(raw_input('please enter book '))             if b == '':                 break  # allow search-loop quit on no input             line in searchfile:                 if b in line:                     return line  # return line here!!             else:                 print 'please try again'                 searchfile.seek(0)  # reset file beginning next search         return none  lis = search()  # lis line book found @ # rest of code written ...

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