python 中用到的文件操作

python 中用到的文件操作

删除文件夹中特定后缀名的文件

import os
def delete_files(folder_path,file_extension):
   try:
       if not os.path.exists(folder_path):
              print(f"错误，文件夹{folder_path} 不存在")
              return
       for filename in os.listdir(folder_path):
              file_path = os.path.join(folder_path,filename)
              if os.path.isfile(file_path):
                 if filename.endswith(ex) for ex in file_extension
                 os.remove(file_path)
                 print(f"已删除文件：{file_path}")
                 except PermissionError；
                         print(f"没有权限删除{folder_path}中的文件")
                 except Exception as e:
                        print(f"发生了未知的错误{e}")

用Python修改文件夹中文件的名字

import os

def add_name(folder_path,prefix):
    try:
        if not os.path.exists(folder_path):
           print(f"文件夹{folder_path}不存在"
        return
   for filename in os.listdir(folder_path):
       file_path = os.path.join(folder_path,filename)
       if os.path.isfile(file_path):
          file_extension = os.path.splitext(filename)[1] 
          new_filename = prefix + os.path.splitext(filename)[0] + file_extension
          new_file_path = os.path.join(folder_path,new_filename)
          os.rename(file_path,new_file_path)
          print(f"{file_path} 被重命名为 {new_file_path}")
          except PermissionError；
                print(f"你没有权限修改{folder_path})
          except Exception as e:
                print(f"发生了某些错误{e}")