Empty chests

from pymclevel import MCSchematic
from pymclevel import TileEntity
from pymclevel import TAG_Compound
from pymclevel import TAG_Short
from pymclevel import TAG_Byte
from pymclevel import TAG_String
from pymclevel import TAG_Int
from pymclevel import TAG_List
from numpy import zeros

displayName = "Empty chests"

def perform(level, box, options):
    minx = int(box.minx/16)*16
    minz = int(box.minz/16)*16

    for x in xrange(minx, box.maxx, 16):
        for z in xrange(minz, box.maxz, 16):
            chunk = level.getChunk(x / 16, z / 16)

            for te in chunk.TileEntities:
                px = te["x"].value
                py = te["y"].value
                pz = te["z"].value

                if px < box.minx or px >= box.maxx:
                    continue
                if py < box.miny or py >= box.maxy:
                    continue
                if pz < box.minz or pz >= box.maxz:
                    continue


                if te["id"].value == "Chest":
                    te["Items"] = []

                    chunk.dirty = True