Hello J
When you have time I would like some advice on where to go. I have created a
program that reads charge account numbers from a file. The user is to enter
a charge account number from the list presented and the program should then
tell them whether they have entered a valid or invalid number. My problem at
this stage (and yes there a probably more than this one), is when I run the
program it tells me the charge account number is always invalid even when I
put a correct number in. Below is my code because I am thinking that perhaps
it is an indent issue maybe.
"""This program reads the contents of a file into a list. Asks the user
to enter a charge account number and will determine the validity of the
number entered to return a message of either valid or invalid.
Written by: Leonie Parker 11428070
Subject: ITC Principles of programming
Assignment: 2b"""
def main():
try:
# Open file for reading
infile = open('charge_accounts.txt', 'r')
# Read the contents of the file inot a lsit
account_number = infile.readlines()
#Convert each element into an int
index = 0
while index != len(account_number):
account_number[index] = int(account_number[index])
index += 1
# Print the contents of the list
print account_number
#Get an account number to search for
search = raw_input('Enter a charge account number: ')
#Determine whether the product number is in thelist
if search in account_number:
print search, 'charge account number is VALID'
else:
print search, 'charge account number is INVALID'
infile.close()
except ValueError:
print 'file open error message'
#Call the main function
main()
Thanks in advance
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