import os
import scipy.io
mat = scipy.io.loadmat('meta.mat')

classes = os.listdir("./train")
classes = sorted(classes)

classname2idx = {}
idx = 0
for classname in classes:
    classname2idx[classname] = idx
    idx += 1

with open("id2wnid&class.txt", "a+") as fp:
    for meta in mat["synsets"][:1000]:
        meta = meta[0]
        id, wnid = meta[0], meta[1]
        fp.write(f"{id[0,0]},{wnid[0]},{classname2idx[wnid[0]]}\n")