Sorting alpha-numerical values

Question

I need to sort images based on numbers in the file Name.

For example: [1.jpg, 10.jpg, 3.jpg... ]

I tired natsort library and sorted function the both give the same result

import glob 
from natsort import natsorted
images =[]
for img in glob.glob('E:/train/image/*.jpg'):
    images.append(img)
    natsorted(images)

it Outputs: [1, 10, 11, 12, 2, 22, 3]

but it must be: [1, 2, 3, 10, 11, 12, 22]

You've asked for a naturally-sorted copy of the contents of `images`, and then thrown it in the trash. — user2357112, Apr 03 '19 at 04:27
Possible duplicate of [Does Python have a built in function for string natural sort?](https://stackoverflow.com/questions/4836710/does-python-have-a-built-in-function-for-string-natural-sort) — Nima Mousavi, Apr 03 '19 at 11:08

score 0 · Answer 1 · answered Apr 03 '19 at 04:30

0

I guess you need to do the following:

import glob 
from natsort import natsorted
images = natsorted(glob.glob('E:/train/image/*.jpg'))

answered Apr 03 '19 at 04:30

Jeril

score 0 · Answer 2 · answered Apr 03 '19 at 04:31

natsorted is not an in-place sort. It returns a new sorted list so you must assign it to a variable.
This should work:

import glob 
from natsort import natsorted
images =[]
for img in glob.glob('E:/train/image/*.jpg'):
    images.append(img)
images = natsorted(images)

2 Answers2