List files with a specific extension

List files with a specific extension - Printable Version

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List files with a specific extension - pyth0nus3r - Jan-12-2017

Hello
I wanted to know if it is possible to list a particular type of file (let's say .mp4) from a directory recursively.
I can list all files recursively within a particular directory but I don't how to search for files with specific extension.

Thanks

RE: List files with a specific extension - wavic - Jan-12-2017

Hello!

In [5]: cd /media/storage/Audio/Music/
/media/storage/Audio/Music

In [6]: import glob

In [7]: glob.glob('*.mp3')[:10]
Out[7]: 
['Claude VonStroke-Aundy (DJ Marky &amp; S.P.Y. Remix) (www.myfreemp3.cc).mp3',
 'CMA  - The Small Losses (Original Mix)  (Chillstep) 16.09.2012.mp3',
 'CMA - The Small Losses.mp3',
 'Coca & Villa - La Noche.mp3',
 'Credit - Hearts & Minds.mp3',
 'Credit-Hearts And Minds.mp3',
 'Crush.mp3',
 'Cuppy Cake Song.mp3',
 'Daddy Yankee_Pitbull_Lil Jon_Noreaga - GASOLINA w_JON.mp3',
 'Dark0 - Last Transmission (original mix).mp3']

RE: List files with a specific extension - buran - Jan-12-2017

you can use os.path.splitext() or str method .endswith() to check filename ext

RE: List files with a specific extension - wavic - Jan-12-2017

You are asking to list all files in a directory tree?

RE: List files with a specific extension - snippsat - Jan-12-2017

(Jan-12-2017, 06:57 PM)pyth0nus3r Wrote: I can list all files recursively within a particular directory but I don't how to search for files with specific extension.

You can use os.walk() or better os.scandir()(a lot faster) for Python 3.5-->
These do recursively scan whole folder.
Eg.

import os

source = 'path'
for root,dirs,files in os.scandir(source):
    for file_name in files:
        if file_name.endswith(('.jpg', '.jpeg', '.mp4')):
            print(file_name)

RE: List files with a specific extension - wavic - Jan-12-2017

scandir(path) do not scan the sub-directories.

for root, dirs, files in os.walk(path):
    if files:
        for file in files:
            if os.path.splitext(file)[1] == '.mp3':
                print(file)

RE: List files with a specific extension - snippsat - Jan-12-2017

(Jan-12-2017, 09:33 PM)wavic Wrote: scandir(path) do not scan the sub-directories.

Okay thanks for info,look like they build scandir() into os.walk().
I did try it before it went into standard library,
from GitHub and then it did work like os.walk().

os.walk()

Quote:As part of this proposal, os.walk() will also be modified to use scandir() rather than listdir() and os.path.isdir() .
This will increase the speed of os.walk() very significantly (as mentioned above, by 2-20 times, depending on the system)

Look better with endswith():

if os.path.splitext(file)[1] == '.mp3':
# Or
if file.endswith('.mp3')

RE: List files with a specific extension - wavic - Jan-12-2017

And they say that scandir() has significant speed improvement especially on Windows. Since 3.5

RE: List files with a specific extension - snippsat - Jan-12-2017

Yes the speed is better,i did make this in 2014 Picture/Movie-Collector.
So here use scandir before it went into standard library.
I see in my code that is was scandir.walk(path),which now is build into os.walk().

Speed Cool

Quote:about 7-50 times as fast on Windows, and about 3-10 times as fast on Linux and Mac OS X.