How to download image from Python CGI

Question

I want to download image from Python CGI.

For example, I post img's base64 to CGI, and CGI output image.

I write this code.

Please advise me.

Python cgi side code

import cgi
import base64

query = cgi.FieldStorage()
img_list = query.getvalue("image").split(',')
contentType = img_list[0] #data:image/jpeg;base64 
base_64 = img_list[1]

print("Content-type: image/jpeg")
print(base64.b64decode(base_64))

Answer 1

Have a try:

print("Content-Type: application/octet-stream")

This means that it is raw bytes and can not be interpreted as anything useful by the browser. The browser should then open a download dialog.