TextGrid to lab

from praatio import textgrid

from pathlib import Path

def tg_to_lab(filename, target="phones"):
    tg = textgrid.openTextgrid(filename, False)
    if not tg.tierNameList or target not in tg.tierNameList:
        return []
    phones = tg.tierDict[target]

    out = []

    def it_to_dict(it):
        ret = {}
        ret['start'] = it.start
        ret['end'] = it.end
        ret['label'] = it.label
        return ret

    for phone in phones.entryList:
        tmp_phone = it_to_dict(phone)
        start = int(tmp_phone['start'] * 10000000)
        end = int(tmp_phone['end'] * 10000000)
        label = tmp_phone['label']
        out.append(f"{start} {end} {label}")

    return out

inpath = Path("/PATH/TO/FILES/INPUT")
outpath = Path("/PATH/TO/FILES/OUTPUT")

for filename in inpath.glob("*.TextGrid"):
    out = outpath / f"{filename.stem}.lab"
    lab = tg_to_lab(filename)

    with open(out, "w") as outf:
        for line in lab:
            outf.write(line + "\n")