Python 기반으로 파일 분류기를 구현하는 방법

# It imports the os module.
import os

# Shutil is a module that provides a number of high-level operations on files and collections of files.
import shutil

# The glob module finds all the pathnames matching a specified pattern according to the rules used by the Unix shell,
# although results are returned in arbitrary order. No tilde expansion is done, but *, ?, and character ranges expressed
# with [] will be correctly matched.
import glob
import sys

# Asking the user to input the path of the directory that contains the files to be sorted.
uncatched_dir = input('请输入待分类的文件路径：\n')

# It checks if the uncatched_dir is empty.
if uncatched_dir.strip() == '':
    print('待分类的文件夹路径不能为空！')
    sys.exit()

# Asking the user to input the path of the directory that contains the files to be sorted.
target_dir = input('请输入分类后文件存放的目标路径：\n')

# It checks if the target_dir is empty.
if target_dir.strip() == '':
    print('分类后的文件存放路径不能为空！')
    sys.exit()

# It checks if the target_dir exists. If it does not exist, it creates a new directory in the current working directory.
if not os.path.exists(target_dir):
    # It creates a new directory in the current working directory.
    os.mkdir(target_dir)

# A variable that is used to count the number of files that have been moved.
file_move_num = 0

# A variable that is used to count the number of new directories that have been created.
dir_new_num = 0

# A for loop that iterates through all the files in the uncatched_dir directory.
for file_ in glob.glob(f'{uncatched_dir}/**/*', recursive=True):

    # It checks if the file is a file.
    if os.path.isfile(file_):

        # It gets the file name of the file.
        file_name = os.path.basename(file_)

        # Checking if the file name contains a period.
        if '.' in file_name:

            # Getting the suffix of the file.
            suffix_name = file_name.split('.')[-1]

        else:

            # Used to classify files that do not have a suffix.
            suffix_name = 'others'

        # It checks if the directory exists. If it does not exist, it creates a new directory in the current working
        # directory.
        if not os.path.exists(f'{target_dir}/{suffix_name}'):

            # It creates a new directory in the current working directory.
            os.mkdir(f'{target_dir}/{suffix_name}')

            # Adding 1 to the variable dir_new_num.
            dir_new_num += 1

        # It copies the file to the target directory.
        shutil.copy(file_, f'{target_dir}/{suffix_name}')

        # Adding 1 to the variable file_move_num.
        file_move_num += 1

print(f'整理完成，有{file_move_num}个文件分类到了{dir_new_num}个文件夹中！\n')

input('输入任意键关闭窗口...')