ValueError in pow()

[namelessperson0]

In

BitClout-Sign-Transaction/Sign_Transaction.py

Line 46 in a27a08f

m = (3 * x1 * x1) * pow(2 * y1, -1, p)

below error occurs
ValueError: pow() 2nd argument cannot be negative when 3rd argument specified

[MiniGlome]

Negative exponents in pow() are supported since Python 3.8