for migrating screenshots

utime.py

import os
import glob
import datetime
import shutil

datetime_formats = [
    '%Y_%m_%d_%H_%M_%S',
    '%Y_%m_%d_%H'
]


def getor(list, i, default=0):
    try:
        v = list[i]
        if v.isdigit():
            return int(v)
        return default
    except IndexError:
        return default


def move_to_cannot_parse(f):
    dir = os.path.dirname(f)
    to_dir = os.path.join('./cannot_parse', dir)
    os.makedirs('./cannot_parse/' + dir, exist_ok=True)
    to_path = os.path.join(to_dir, os.path.basename(f))
    shutil.move(f, to_path)
    print('{} -> {}'.format(f, to_path))


for f in glob.glob("./**/*.*", recursive=True):
    ext = os.path.splitext(os.path.basename(f))[1]
    if ext.lower() not in [".png", ".jpg", ".bmp"]:
        continue
    fname = os.path.splitext(os.path.basename(f))[0]
    parts = fname.split("_")
    year = getor(parts, 0)
    month = getor(parts, 1, 1)
    day = getor(parts, 2, 1)
    hour = getor(parts, 3)
    minute = getor(parts, 4)
    second = getor(parts, 5)

    if year == 0:
        print("cannot parse (year: 0): ", f)
        move_to_cannot_parse(f)
        continue
    try:
        dt = datetime.datetime(year, month, day, hour, minute, second)
        os.utime(f, (dt.timestamp(), dt.timestamp()))
    except ValueError:
        print("cannot parse (value error): ", f)
        move_to_cannot_parse(f)