Simple python script to print the weather/day state of a minecraft world for https://github.com/schoentoon/Minecraft-Overviewer

gistfile1.py

#!/usr/bin/python
print "Content-Type: application/json"
print

from nbt import * # https://github.com/twoolie/NBT
import json

nbtfile = nbt.NBTFile("/complete/path/to/world/data/scoreboard.dat", 'rb')

day = (int(str(nbtfile["Data"]["DayTime"])) % 24000) < 12000
rain = int(str(nbtfile["Data"]["raining"])) == 1
thunder = int(str(nbtfile["Data"]["thundering"])) == 1

if (thunder):
  weather_url = "weather/weather_thunder_day.png" if day else "weather/weather_thunder_night.png"
elif (rain):
  weather_url = "weather/weather_stormy_day.png" if day else "weather/weather_stormy_night.png"
else:
  weather_url = "weather/weather_sunny_day.png" if day else "weather/weather_sunny_night.png"

print json.dumps({"src":weather_url})