How to sort files' names in Python

Asked Jul 24 '20 at 20:22

Active Jul 24 '20 at 21:31

Viewed 62 times

I have 2 directories left and right that contain files: image1.jpg, image4.jpg, image2.jpg ... image131.jpg

I'd like to put those names in sorted lists all, left_files, right_files. The following program makes unordred lists all, left_files, right_files :

all = []
left_files = []
right_files = []
if os.path.exists(dir):
    for path, names, files in os.walk(dir):
        names.sort()

        for f in files:
            if os.path.splitext(f)[1] in ['.bmp', '.png', '.jpg', '.ppm']:
                if 'left' in f or 'left' in path:
                    left_files.append( os.path.join( path, f ) )
                elif 'right' in f or 'right' in path:
                    right_files.append( os.path.join( path, f ) )
                all.append( os.path.join( path, f ) )

When I use sorted(left_files), it gives me files image1.jpg, image10.jpg, image100.jpg, but I want to obtain image1.jpg, image2.jpg, image3.jpg...

edited Jul 24 '20 at 20:55

MattDMo

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asked Jul 24 '20 at 20:22

Younès Raoui

you can use `glob.glob` to get a list of the files in that directory, then use `list.sort` to sort them however you'd like – vlovero Jul 24 '20 at 20:24
Also if there are only two directories left and right , os.listdir("left") should be the choice. – Vishesh Mangla Jul 24 '20 at 20:49
I suggest you look at the NatSort package: https://pypi.org/project/natsort/ – Jack Aidley Jul 24 '20 at 20:58

How to sort files' names in Python

0 Answers0