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

目录

• 1. 在文件夹旁边新建文件夹
• 2. 可以指定存储路径

1. 在文件夹旁边新建文件夹

import os
import shutil
import random
 
root_file = "/media/algo/data_1/everyday/20230203-有大文件/snowy_sample"
basename_ = os.path.basename(root_file)
dirname_ = os.path.dirname(root_file)
T_nums_sample = 10
# 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:
    if 0 == len(d) and 0 != len(filelist):
        random.shuffle(filelist)
    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_)

2. 可以指定存储路径

import os
import shutil
import random
 
root_file = "/media/algo/data_1/everyday/data11"
basename_ = os.path.basename(root_file)
dirname_ = os.path.dirname(root_file)
T_nums_sample = 25
# print("basename_=", basename_)
# print("dirname_=", dirname_)
 
basename_new = basename_ + "_sample"
dirname_ = "/media/algo/data_1/everyday/20230209/rain-test-show-data"
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:
    if 0 == len(d) and 0 != len(filelist):
        random.shuffle(filelist)
    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)
            path_new_dir = path_new_dir.replace(root_file, new_path)
            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_)