Python Server

Category: Mega-Polis → Visualisation → Visualisation Supporting Tools
Node ID: SvMegapolisPythonServer
Tooltip: Python Server
Dependencies: multiprocessing, subprocess, sys, os, webbrowser, psutil

Functionality

Starts a simple static file server (Python’s built-in http.server) to serve the contents of a chosen folder over HTTP.

When run is enabled, the node:

  • Reads the Folder input (directory to serve)

  • Spawns a separate process that runs:

    python -m http.server <port> --directory <folder>

  • Opens the browser to localhost:<port>

When close is enabled, the node attempts to kill the current process tree using psutil (including all child processes).

Inputs

Socket Type Description
Folder SvStringsSocket Folder path to be served by the HTTP server (--directory). Must be linked.

Parameters

Name Type Default Description
port Int 8800 Port to run the server on.
run Bool False When enabled, spawns the http.server process and opens a browser tab.
close Bool False When enabled, kills the current process tree via psutil (may terminate Blender if running inside Blender).

Outputs

Socket Type Description
Output Message SvStringsSocket Status message. When run starts, outputs ['Runnning'] (note the spelling). Otherwise ''.

Example

Serve a folder on localhost

  1. Connect:
    • Folder → "/tmp/megapolis_export"
  2. Set:
    • port = 8800
    • run = True
  3. The node starts a server equivalent to:
    • python -m http.server 8800 --directory /tmp/megapolis_export
  4. Your browser opens at:
    • localhost:8800