import os
#1获取重命名的文件夹
folder_name = '/Users/caner/Desktop/相册备份/iCloud 照片 7'
id = 590

#2获取文件夹中的文件名
file_names = os.listdir(folder_name)              
os.chdir(folder_name)                             
print(len(file_names))
#3对获取的名字重命名
for name in file_names:             
    if('.DS_Store' not in name):
        id += 1 
        util = name[name.rfind('.'):]   
        newName = str(id)+util
        print(name,newName)
        os.rename(name,newName)