Insert an image into html img tag

Image to b64 string

from io import BytesIO
import matplotlib.pyplot as plt
import base64
b = BytesIO()
plt.plot([1,2,3])
plt.savefig(b)
b64_img_str = base64.encodebytes(b.getvalue()).decode()
# In js
# $("#graph1").attr("src", "data:image/png;base64, ".concat(b64_img_str));