Given the mean and standard deviation of a normal distribution, how in Python can I determine the quartile of a given point?

E.g.:

• mu = 0.7
• sigma = 0.1

Which quartile is the value 0.75 in, with Python?

I’m after the quartile itself, not the quartile bounds – i.e. a function should take m, s, and val, and return quartile in the range 0 to 3.