文件替换：保留原始路径

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文件替换：保留原始路径

问题描述：将特定类型文件的文件挑出来，放入一个文件夹，批量处理之后再替换原文件。

1. 文件迁移

  • 将文件路径经过md5加密后，作为文件名前缀。
  • 复制文件到一个新文件夹
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# xyz_a.py
# %%
import os
import shutil

from hashlib import md5


# 创建 md5 对象
def encrypt_md5(s):
    new_md5 = md5()
    new_md5.update(s.encode(encoding='utf-8'))
    return new_md5.hexdigest()


# old_root = os.getcwd()    # 待处理文件的根目录
old_root = "E:\\"
new_root = "D:\\0\\"
exts = ['.xyz']


for parent, dirnames, filenames in os.walk(old_root):
    for filename in filenames:
        extension = os.path.splitext(filename)[1]
        
        if extension.lower() in ext:

            old_dir = os.path.join(parent, filename)
            new_name = encrypt_md5(old_dir) + '_' + filename   # 修改文件名
            new_dir = os.path.join(new_root, new_name)
            
            print(f'{old_dir};; {new_name};; {new_dir}')
            
            # shutil.copyfile(old_dir, new_dir)    # 复制到新文件夹


  • 用命令行运行：
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    python xyz_a.py > zzz.csv

2. 文件处理

略

3. 替换原始文件

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# xyz_b.py
# %%
import os
import pandas as pd

import shutil


# ------
df = pd.read_csv('zzz.csv', encoding='utf16', sep=';;', )
df.columns = ['old_dir', 'new_name', 'new_dir']
df['new_name'] = df['new_name'].str.strip()

print(df.head())


# ------
new_root = "D:\\0\\"

for parent, dirnames, filenames in os.walk(new_root):
    for filename in filenames:
        # print(filename)
        new_dir = os.path.join(parent, filename)

        rst = df[df['new_name'] == filename]
        
        try:
            old_dir = rst['old_dir'].values[0]
            print(new_dir, '->', old_dir)

            # f1, f2 = os.path.split(old_dir)[0], os.path.split(old_dir)[1]
            # print(f1, f2)
            
            # shutil.copyfile(new_dir, old_dir)
        
        except Exception as result:
            print(result)