How do you get a directory listing sorted by creation date in python?

Question

What is the best way to get a list of all files in a directory, sorted by date [created | modified], using python, on a windows machine?

Answer 1

Here is a simple couple lines that looks for extention as well as provides a sort option

def get_sorted_files(src_dir, regex_ext='*', sort_reverse=False): 
    files_to_evaluate = [os.path.join(src_dir, f) for f in os.listdir(src_dir) if re.search(r'.*\.({})$'.format(regex_ext), f)]
    files_to_evaluate.sort(key=os.path.getmtime, reverse=sort_reverse)
    return files_to_evaluate

Answer 2

Maybe you should use shell commands. In Unix/Linux, find piped with sort will probably be able to do what you want.

Answer 3

this is a basic step for learn:

import os, stat, sys
import time

dirpath = sys.argv[1] if len(sys.argv) == 2 else r'.'

listdir = os.listdir(dirpath)

for i in listdir:
    os.chdir(dirpath)
    data_001 = os.path.realpath(i)
    listdir_stat1 = os.stat(data_001)
    listdir_stat2 = ((os.stat(data_001), data_001))
    print time.ctime(listdir_stat1.st_ctime), data_001

Answer 4

Update: to sort dirpath's entries by modification date in Python 3:

import os
from pathlib import Path

paths = sorted(Path(dirpath).iterdir(), key=os.path.getmtime)

_{(put @Pygirl's answer here for greater visibility)}

If you already have a list of filenames files, then to sort it inplace by creation time on Windows:

files.sort(key=os.path.getctime)

The list of files you could get, for example, using glob as shown in @Jay's answer.

---

^{old answer} Here's a more verbose version of @Greg Hewgill's answer. It is the most conforming to the question requirements. It makes a distinction between creation and modification dates (at least on Windows).

#!/usr/bin/env python
from stat import S_ISREG, ST_CTIME, ST_MODE
import os, sys, time

# path to the directory (relative or absolute)
dirpath = sys.argv[1] if len(sys.argv) == 2 else r'.'

# get all entries in the directory w/ stats
entries = (os.path.join(dirpath, fn) for fn in os.listdir(dirpath))
entries = ((os.stat(path), path) for path in entries)

# leave only regular files, insert creation date
entries = ((stat[ST_CTIME], path)
           for stat, path in entries if S_ISREG(stat[ST_MODE]))
#NOTE: on Windows `ST_CTIME` is a creation date 
#  but on Unix it could be something else
#NOTE: use `ST_MTIME` to sort by a modification date

for cdate, path in sorted(entries):
    print time.ctime(cdate), os.path.basename(path)

Example:

$ python stat_creation_date.py
Thu Feb 11 13:31:07 2009 stat_creation_date.py

Answer 5

Alex Coventry's answer will produce an exception if the file is a symlink to an unexistent file, the following code corrects that answer:

import time
import datetime
sorted(filter(os.path.isfile, os.listdir('.')), 
    key=lambda p: os.path.exists(p) and os.stat(p).st_mtime or time.mktime(datetime.now().timetuple())

When the file doesn't exist, now() is used, and the symlink will go at the very end of the list.

Answer 6

I've done this in the past for a Python script to determine the last updated files in a directory:

import glob
import os

search_dir = "/mydir/"
# remove anything from the list that is not a file (directories, symlinks)
# thanks to J.F. Sebastion for pointing out that the requirement was a list 
# of files (presumably not including directories)  
files = list(filter(os.path.isfile, glob.glob(search_dir + "*")))
files.sort(key=lambda x: os.path.getmtime(x))

That should do what you're looking for based on file mtime.

EDIT: Note that you can also use os.listdir() in place of glob.glob() if desired - the reason I used glob in my original code was that I was wanting to use glob to only search for files with a particular set of file extensions, which glob() was better suited to. To use listdir here's what it would look like:

import os

search_dir = "/mydir/"
os.chdir(search_dir)
files = filter(os.path.isfile, os.listdir(search_dir))
files = [os.path.join(search_dir, f) for f in files] # add path to each file
files.sort(key=lambda x: os.path.getmtime(x))