matplotlib savefig before show code example

Example 1: savefig matplotlib python

import matplotlib.pyplot as plt
plt.figure()
plt.plot([1,2,3],[1,2,3])
plt.savefig("out.png")

Example 2: matplotlib savefig not working

# Call plt.show() after plt.savefig("filename.png")
# (Because plt.show() clears the plot from memory)