Activate a figure in matplotlib

Question

It seems easy but I could not find any solution for opening multiple figures and save them by their name. I look for something like this:

fig1, ax1 = pl.subplots(1)
fig2, ax2 = pl.subplots(1)
...
pl.savefig('f1.png', fig1)
pl.savefig('f2.png', fig2)

usually pl.savefig acts on the last active figure. So how one can activate a figure and save it, then repeat the process for the rest of the figures?

Answer 1

You can save an image using the figure object itself:

fig1.savefig(...)

Alternatively, you can change the current figure by calling plt.figure(1) to select the first figure that was create and then use plt.savefig(). Or, you can use plt.figure(fig1.number) to switch focus to fig1

import matplotlib.pyplot as plt

fig1, ax1 = plt.subplots(1)
fig2, ax2 = plt.subplots(1)

# Can choose one of the below to change the current figure
plt.figure(1)
# plt.figure(fig1.number)

plt.savefig(...) # will save fig1