I am using Google Colab with this code:
from sklearn.linear_model import RidgeCV
import numpy as np
r_cv = RidgeCV(alphas=[round(float(x),1) for x in np.linspace(0,1,10)])

model = r_cv.fit(x_train, y_train)
model.alpha_

But the error coming is inappropriate:
ValueError: alphas must be positive. Got [0. 0.1 0.2 0.3 0.4 0.6 0.7 0.8 0.9 1. ] containing some negative or null value instead.