get_and_group_photos.py

#!/usr/bin/env python3

import os
import os.path
import re
import subprocess

currdir = os.path.dirname(os.path.realpath(__file__))
picpattern = re.compile(r'(jpg|cr2)$', flags=re.IGNORECASE)
datepattern = re.compile(r'(\d{4}):(\d{2}):(\d{2})')

subprocess.call(['gphoto2', '--get-all-files'])

for f in os.listdir(currdir):
    if picpattern.search(f):
        m = datepattern.search(subprocess.check_output(['exiftool', '-ModifyDate', f]).decode('utf-8'))
        if m:
            year, month, day = m.groups()
            path = os.path.join(currdir, ''.join((year[2:], month, day)))
            os.makedirs(path, exist_ok=True)
            os.rename(os.path.join(currdir, f), os.path.join(path, f))