Group a large number of files in the same folder into multiple groups according to settings

Group a large number of files in the same folder into multiple groups according to the settings

1. Demand analysis
   stay recon There are a lot of files under the folder , Observe the file name , We designed the document according to recon_ Group by the first number after , Then the resulting folder should be 0,1,…,11.
   
2. Programming
   Based on the above illusion , We have written the following program , Copy it to recon Just run under the folder .

   #!/usr/bin/env python
   import subprocess, threading, time, shutil, os, sys
   import re
   
   
   file_list = os.listdir()
   
   file_set = {
         }
   pattern = 'recon_(\d*)_'
   
   for file in file_list:
       result = re.match(pattern, file)
       if result == None:
           continue
   
       if result.group(1) not in file_set.keys():
           file_set[result.group(1)] = []
   
       file_set[result.group(1)].append(file)
   
   for key in file_set.keys():
       os.path.exists(key) or os.mkdir(key)
   
       for item in file_set[key]:
           mv_cmd = ['mv', item, key]
           subprocess.call(mv_cmd)
   
   print(file_set.keys())
   

   The experimental results are as follows ：
   
3. Expand
   If divided according to quantity , For example, a fixed number of files per folder , I think it's the same logic , Get all file names first , To eliminate split.py, Create a new folder , Partition file .