This Python program uses functions provided by the os module recursively navigate through a directory tree while listing the directories, subdirectories and files. In case of files, the program also show its size and modification time.
The three main functions used in the program are:
os.walk(): This function traverses the directory tree and for each directory in the tree, it returns a 3-tuple (directorypath, directoryname, filename)os.stat(): This functios returns the file attributes such as size and modified time.os.path.join(): To join the paths and filenames intelligently.
Additionally the program uses math functions to convert file size to Kilo bytes, Megabytes etc., and Time functions to display file modification date and time.
Program Source
#Import os module import os #Import math and time module import math,time #Set listing start location start_path = "C:\Samples" dir_count = 0 file_count = 0 #Traverse directory tree for (path,dirs,files) in os.walk(start_path): print('Directory: {:s}'.format(path)) dir_count += 1 #Repeat for each file in directory for file in files: fstat = os.stat(os.path.join(path,file)) # Convert file size to MB, KB or Bytes if (fstat.st_size > 1024 * 1024): fsize = math.ceil(fstat.st_size / (1024 * 1024)) unit = "MB" elif (fstat.st_size > 1024): fsize = math.ceil(fstat.st_size / 1024) unit = "KB" else: fsize = fstat.st_size unit = "B" mtime = time.strftime("%X %x", time.gmtime(fstat.st_mtime)) # Print file attributes print('\t{:15.15s}{:8d} {:2s} {:18s}'.format(file,fsize,unit,mtime)) file_count += 1 # Print total files and directory count print('\nFound {} files in {} directories.'.format(file_count,dir_count))
Sample Output
Directory: C:\Samples Directory: C:\Samples\Logs LogFile-2015092 121 B 15:38:27 01/12/16 LogFile-2015092 83 B 07:57:03 09/23/15 LogFile-2015092 4 KB 15:38:37 01/12/16 Directory: C:\Samples\Pictures Hydrangeas.jpg 582 KB 05:32:31 07/14/09 Jellyfish.jpg 758 KB 05:32:31 07/14/09 Directory: C:\Samples\Pictures\text textfile1.txt 81 B 07:57:29 09/23/15 Found 6 files in 4 directories.
