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import re #this stands for import regular expressions
#TASK 8
#validation is very important in programs - it is to ensure that the data entered into your program is VALID - not rubbish!
#In the creation of a password #at least 6 digits (no less)
#at least one number
#at least one character
#TASK: ANALYSE THE WAY THE WHILE LOOP WORKS. Add messages to warn the user
#when they are getting it wrong for uppercase, character, and blank space....
def main():
password= input("Create a password : ")
x = True #random variable x which is set to TRUE
while x: #while x is TRUE,then run the following which is in the loop
if (len(password)<6 or len(password)>12): #if password not between 6 and 12 exit loop
print("Password length between 6 and 12 please")
break #exit the WHILE LOOP
elif not re.search("[a-z]",password): #if password doesn't contain one lowercase letter
print("You need at least one lower case letter")
break
elif not re.search("[0-9]",password): #if pasword doesn't contain numbers
print("You need at least one number")
break
elif not re.search("[A-Z]",password): #if password doesn't contain upper case letter
print("You need at least one upper case character")
break
elif not re.search("[$#@]",password): #if password doesn't contain character
print("You need at least one special character please")
break
elif re.search("\s",password): #if contains blank space
print("You cannot have blank spaces in your password...")
break
else:
print("Valid Password")
x=False #Valid password has been created, so set x to False and exit the loop
break
if x: #note this is outside the while loop (so the code jumps to it, if BREAK is typed inside the loop
print("Not a Valid Password")
main()
main()