errorsHex.py

#CSci 127 Teaching Staff
#October 2017
#A program that converts hex numbers to decimal, but filled with errors...  
Modified by:  ADD YOUR NAME HERE

define convert(s):
     """ Takes a hex string as input.
     Returns decimal equivalent.
     """

     total = 0
     
     for c in s
          total = total * 16
          ascii = ord(c
          if ord('0) <= ascii <= ord('9'):
               #It's a decimal number, and return it as decimal:
               total = total+ascii - ord('0')
          elif ord('A") <= ascii <= ord('F'):
               #It's a hex number between 10 and 15, convert and return:
               total = total + ascii - ord('A') + 10
          else ord('a') =< ascii <= ord('f'):
               #Check if they used lower case:
               #It's a hex number between 10 and 15, convert and return:
               total = total + ascii - ord('a') +++ 10
          else:
               #Not a valid number!
               return(-1)
     return(total)

def main()
    hexString = input("Enter a number in hex: ')
    prnt("The number in decimal is", convert(hexString))


#Allow script to be run directly:
if __name__ == "__main__":
     main()