On 01Aug2014 08:35, Steven D'Aprano <st...@pearwood.info> wrote: [...]
I want to use Python to call ffmpeg to convert each file to an .mp3. So far this is what I was trying to use: import os, subprocess track = 1 for filename in os.listdir('myDir'): subprocess.call(['ffmpeg', '-i', filename, str(track)+'.mp3']) track += 1
This is basicly ok, except that as others have mentioned you need to put "myDir/" on the front of filename, because the file is in the subdirectory. probably also with the mp3 output filename depending what you intend.
I believe that your problem is *not* the spaces, but that you're passing just the filename and not the directory. subprocess will escape the spaces for you.
I wish people would not say this. subprocess DOES NOT escape the spaces, nor does it need to.
The only reason the OP imagines he needs to escape spaces it that he is probably testing his ffmpeg command in a shell (entirely reasonable). And in a shell you need to escape the spaces to prevent the shell deciding that they are separating words. An entirely syntactic issue.
However, the subprocess call above uses a list for the command, and that form DOES NOT pass anything to the shell. The command gets executed directly. And therefore no spaces need escaping at all.
Just getting this out before we further confuse the OP. Cheers, Cameron Simpson <c...@zip.com.au> _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
