(Chilkat2-Python) Extract data:image/png;base64 from HTML

Demonstrates how to extract base64 image data from HTMl and save to files..

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import chilkat2

sb = chilkat2.StringBuilder()
bd = chilkat2.BinData()
sbFilename = chilkat2.StringBuilder()
index = 1

success = sb.LoadFile("qa_data/html/oresp body.txt","utf-8")
# Assume success.
print("length = " + str(sb.Length))

mayHaveMore = True
while mayHaveMore == True :

    # Get the base64 between the 1st occurrence "data:image/png;base64," and "'"
    sBase64 = sb.GetBetween("data:image/png;base64,","'")

    # If nothing is found, then we'll exit the loop because there are no more.
    mayHaveMore = sb.LastMethodSuccess

    if (sb.LastMethodSuccess == True):
        # Found something.
        # Load into bd and save.
        success = bd.LoadEncoded(sBase64,"base64")

        sbFilename.SetString("qa_output/png_")
        sbFilename.AppendInt(index)
        sbFilename.Append(".png")

        bd.WriteFile(sbFilename.GetAsString())

        # Replace "data:image/png;base64" with "data:image-png;base64" so the next iteration finds the next occurrence.
        sb.ReplaceFirst("data:image/png;base64","data:image-png;base64")

    index = index + 1

# Restore our replacements..
count = sb.Replace("data:image-png;base64","data:image/png;base64")

print("All done.")