My python program is giving unexpected results within the regular expressions functions, when I enter a number plate for recognition, it tells me it's invalid, although it is valid and I don't know why?
I would be grateful if you could tell me what's wrong and give a possible solution, as this is a very important homework assignment.
#Start
#04/02/2016
bad=[]#initialise bad list
data="Y"#initialise value to prevent infinite loop
standardNumberPlateObj=""
NumPlate=""
import re#import re functions
import pickle#import pickle function
print ("Welcome to the number plate recognition program.\n\n")
choice=input("Press 1 to input number plates and save\nPress 2 to read binary number plate file: ")
if choice == "1":
while data=="Y":# while loop
NumPlate = input("Input Registration number in format (XX01 XXX) *With a space at the end!*:\n\n") #user input for numberplate
standardNumberPlateObj=re.match(r'\w\w\d\d\s\w\w\w\s', NumPlate, re.M|re.I)#validate that numberplate is valid
if standardNumberPlateObj:
print("Verification Success")
data=input(str("Would you like to continue? (Y/N):"))
else:
print("Verification Failed")
bad.append(NumPlate)#add numberplate to bad list
data=input(str("Would you like to continue? (Y/N):"))#ask user to continue
while data=="N":#saving number plates to file if user enters N
f = open("reg.dat", "wb")
pickle.dump(bad, f)
f.close()
print ("\nRestart the program to read binary file!")#ending message
break
elif choice == "2":
print ("\nBad number plates:\n\n")
f=open("reg.dat", "rb")
Registrations = pickle.load(f)
print(Registrations)
f.close()
else:
print ("Please enter a valid choice!")
print ("\n END of program!")
