Created
December 5, 2020 16:08
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いつしかにやったファイル名一括変更プログラムのハッカソン
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| import json | |
| import os | |
| from datetime import datetime | |
| from PIL import Image, UnidentifiedImageError | |
| def main(): | |
| if not os.path.isfile("settings.json"): | |
| create_new_setting() | |
| json_data = {} | |
| with open("settings.json", mode="r") as f: | |
| json_data = json.load(f) | |
| while True: | |
| print("give me a path for directory which has images of assignment.") | |
| dir_path = input() | |
| if os.path.isdir(dir_path): | |
| break | |
| print("Seems there is not such directory. Give a try again!") | |
| print("What is the assignment name? (such as number)") | |
| assign_name = input() | |
| asc = yes_or_no("Ascend?") | |
| print("[1] Listing up file's pathes...") | |
| pathes = os.listdir(dir_path) | |
| pathes = [dir_path + "/" + x for x in pathes] | |
| print("[2] Fetching EXIF tags for page number...") | |
| timestamps = {} | |
| for path in pathes: | |
| print(path) | |
| if os.path.isdir(path): | |
| print(" This was directory, skipping.") | |
| continue | |
| exif = get_exif(path) | |
| if exif is None: | |
| print("cannot get exif, skipping!") | |
| continue | |
| if 306 not in exif: | |
| print(" This picture has no timestamp! Using file's modified time instead.") | |
| timestamps[path] = datetime.fromtimestamp(os.path.getmtime(path)) | |
| else: | |
| timestamps[path] = datetime.strptime(exif[306], '%Y:%m:%d %H:%M:%S') | |
| print(" " + timestamps[path].strftime("%Y/%m/%d %H:%M:%S")) | |
| print("%d file(s) will be renamed!" % len(timestamps)) | |
| print("[3] sorting") | |
| sorted_filename = [k for k, v in sorted(timestamps.items(), key= lambda k: k[1].timestamp(), reverse=not asc)] | |
| print("[4] renaming") | |
| for index, path in enumerate(sorted_filename): | |
| filename = "%s-%s-%s-%s-%s-P.%d.%s" % \ | |
| (json_data["grade"], json_data["class"], json_data["number"], json_data["name"], | |
| assign_name, index + 1, path[path.rindex(".") + 1:]) | |
| print(path) | |
| print(" ->" + dir_path + filename) | |
| os.rename(path, dir_path + "/" + filename) | |
| print("Work done!") | |
| def create_new_setting(): | |
| print("The settings file does not appear exist.") | |
| print("Please create the file before use this file!") | |
| print("") | |
| grade = input_int("What is your grade?: ") | |
| clsnum = input_int("What is your class number?: ") | |
| number = input_int("What is your number?: ") | |
| print("Please input your name:") | |
| name = input() | |
| print("Nice information, I'll save this!") | |
| with open("settings.json", mode="w") as f: | |
| json.dump( | |
| {"grade": grade, "class": clsnum, "number": number, "name": name}, | |
| f | |
| ) | |
| print("Saved!") | |
| def get_exif(path: str): | |
| try: | |
| with open(path, mode="br") as f: | |
| im = Image.open(f) | |
| return im._getexif() | |
| except UnidentifiedImageError: | |
| return None | |
| def input_int(modal): | |
| print(modal) | |
| while True: | |
| ret = input() | |
| try: | |
| return int(ret) | |
| except Exception: | |
| print("Integer please!") | |
| def yes_or_no(modal): | |
| print(modal + " (Y or other)") | |
| ans = input() | |
| return ans in ["y", "\n"] | |
| if __name__ == '__main__': | |
| main() |
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