Python脚本之批量复制文件并同时支持重命名

import os
import shutil
import time

start_time = time.time()
# 需要被复制的文件夹

old_path = r'C:\old_dir'
new_path = r'C:\new_dir'
all_list = os.listdir(old_path)
for i in all_list:
    # print(os.path.join(old_path,i))
    for j in os.listdir(os.path.join(old_path,i)):
        print(j)
        if j=='label.png':
            name= i.split('_json')[0]
            # name = name.replace('.','')
            old_name = old_path + '\\' + i + '\\' + j
            new_name = new_path + '\\' + name + ".png"
            print(new_name)
            shutil.copyfile(old_name, new_name)

# print(len(all_list))
# print(all_list)
end_time = time.time()
print(end_time-start_time,'秒')