Exercise Acceptable Password IV in my opinion has bas asserts.
conditions:
the length should be bigger than 6;
should contain at least one digit, but it cannot consist of just digits;
having numbers or containing just numbers does not apply to the password longer than 9.
for example we have assert = True for password which has none digits.
Created at: 2020/10/09 18:43; Updated at: 2020/10/10 20:25
