Python removes unnecessary large files from the system

There were too many files and they were randomly placed. Suddenly one day I found that the hard disk space was not enough, so I wrote a python script to search for all files larger than 10MB to see if there are duplicate copies of these large files. If so, list them all so that they can be deleted manually.

Usage method: add a parameter specifying the directory

For example, python redundant_remover.py /tmp

Mainly use the stat module, os, sys system module

import os, sys
#引入统计模块
from stat import *
BIG_FILE_THRESHOLD = 10000000L
dict1 = {}    # filesize 做 key, filename 做 value
dict2 = {}     # filename 做 key, filesize 做 value
def treewalk(path):
    try:
        for i in os.listdir(path):
            mode = os.stat(path+"/"+i).st_mode
            if S_ISDIR(mode) <> True:
                filename = path+"/"+i
                filesize = os.stat(filename).st_size
                if filesize > BIG_FILE_THRESHOLD:
                    if filesize in dict1:                      
                        dict2[filename] = filesize
                        dict2[dict1[filesize]]=filesize
                    else:
                        dict1[filesize] = filename                 
            else:
                treewalk(path+"/"+i)
    except WindowsError:
        pass
def printdict(finaldict):
    for i_size in finaldict.values():
        print i_size
        for j_name in finaldict.keys():
            if finaldict[j_name] == i_size:
                print j_name
        print "\n"
if __name__=="__main__":
    treewalk(sys.argv[1])
    printdict(dict2)