How to run convert this batch script so it can run on command line and be called by python?

Question

SETLOCAL ENABLEDELAYEDEXPANSION
for %%i in (*.exr) do (
    set z=%%i 
    magick %%i !z:exr=pfm!
)

I have this batch script that i need to be able to run in python without having and calling the external batch file. Im trying to figure out how i can run this same script just on command line so i can us subprocess to do something like:

cmd = '''
  SETLOCAL ENABLEDELAYEDEXPANSION
  for %i in (*.exr) do (
      set z=%i
      magick %i !z:exr=pfm!
  )
  ''' 

subprocess.check_output(cmd, shell=True, cwd = convdir)

but cannot get it to work. What is the best method to go about this?

Answer 1

I think you are trying to make PFM versions of EXR files. You can get rid of all that Microsoft BATCH nonsense and just do it with ImageMagick .

So, to convert IMAGE.EXR to IMAGE.PFM, just use:

magick mogrify -format PFM IMAGE.EXR

Or, alternatively, if you have a whole directory of EXR files and you want them all converted to PFM:

magick mogrify -format PFM *.EXR