Get exif data for all files in a folder

import json
from exif import get_location
from pathlib import Path
import exifread

base = Path("images")
for folder in sorted(base.glob("201*")):
    if folder.is_dir():
        gps_data = {}
        json_fn = folder / "gps.json"
        if json_fn.exists():
            continue
        for fn in sorted(folder.glob("*.JPG"):
            with open(folder / fn, "rb") as f:
               gps_data[fn.name] = get_location(exifread.process_file(f))
        if gps_data:
           json.dump(gps_data, open(json_fn, "w"))