more than 9 subplots in matplotlib

You can also do it like this with pyplot:

import matplotlib.pyplot as plt
oFig1 = plt.figure(1)

oFig1.add_subplot(4,4,11)      #(m,n,x) -> x starts with 1
...

You could also do

import matplotlib.pyplot as plt

N = 10 # number of subplots you want
fig, axes = plt.subplots(nrows = N)

Then len(axes) = N, meaning you’ll have an axis for each subplot to work with.