python 文件太多打不开文件夹，取样少量的文件

python 文件太多打不开文件夹，取样少量的文件，
建立同样的文件目录结构

import os
import shutil

root_file = "/media/algo/data_1/everyday/20230203/snowy"
basename_ = os.path.basename(root_file)
dirname_ = os.path.dirname(root_file)
T_nums_sample = 500
# print("basename_=", basename_)
# print("dirname_=", dirname_)

basename_new = basename_ + "_sample"
new_path = os.path.join(dirname_, basename_ + "_sample")
print(new_path)

if not os.path.exists(new_path):
    os.makedirs(new_path)
    
path_files = []
cnt_2 = 0
g = os.walk(root_file)
for path, d, filelist in g:
    for filename in filelist:
        if filename.endswith('.jpg'):
            if "raw" in filename:
                continue
            print("cnt=", cnt_2, "filename=", filename)
            cnt_2 += 1
            path_file = os.path.join(path, filename)
            path_new = path_file.replace(basename_, basename_new)
            path_new_dir = os.path.dirname(path_new)
            if not os.path.exists(path_new_dir):
                os.makedirs(path_new_dir)
            else:
                num_ = len(os.listdir(path_new_dir))
                if num_ < T_nums_sample:
                    shutil.copy(path_file, path_new_dir)
                    print(os.path.basename(path_new_dir), ":num=", num_)