import base64 encoded = base64.b64encode(open("../example_figures_modisco/metaclusters_heatmap.png", "rb").read()) image_tag='

' from yattag import Doc doc,tag,text=Doc().tagtext() doc.asis('') with tag('html'): with tag('body'): doc.asis(image_tag) html_string=doc.getvalue() outf=open('example.from.string.html','w') outf.write(html_string)