Restricting input to everything but float range from 0.0 to 1.0 in Line Edit - Python/PyQt4?

Question

PyQt

Good afternoon, please tell me how to limit the input in Line Edit to everything except the range of real numbers from 0.0 to 1.0
Initially, Line Edit is empty, only with a holder.
Purpose:only real numbers from 0.0 to 1.0 are entered in the program interface in Line Edit
I know that you can use QIntValidator for integers, but for floating point numbers?
Thank you. PyQt4, python 3.4.3

Answer 1

QDoubleValidator