# Write a function to return true if the password is valid.
import re


def pass_validity(p):
    x = True
    while x:
        if len(p) < 6 or len(p) > 12:
            break
        elif not re.search("[a-z]", p):
            break
        elif not re.search("[0-9]", p):
            break
        elif not re.search("[A-Z]", p):
            break
        elif not re.search("[$#@]", p):
            break
        elif re.search("\s", p):
            break
        else:
            return True
            x = False
            break

    if x:
        return False
