This is not the first time that I created a Python3 application that spat out some output and required access to it via an HTTP server.
While there are numerous ways to achieve this, a really simple way is to embed an HTTP server directly in your Python3 application, and have it serve your output directly when called.
A sample web server in Python
from http.server import HTTPServer, BaseHTTPRequestHandler
class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
def do_GET(self):
self.send_response(200)
self.end_headers()
# Add additional output here
self.wfile.write(b'Hello, world!')
httpd = HTTPServer(('', 8000), SimpleHTTPRequestHandler)
httpd.serve_forever()