Closing an image opened by Pillow in Window Photo Viewer

[bigmit37]

What is taskkill, /f and /im? 

Taskkill ends one or more tasks or processes,subprocess call this.

but still not quite sure what your args mean.

args is what to call in this case Taskkill.

I'm assuming my arguments for the last line are incorrect?

It's not path but process name 
Open Task Manager and find the process.
It should probably be:

subprocess.run(['taskkill', '/f', '/im', "i_view64.exe"])

You can not remove os.scandir('.'),
and use a ordinary loop.
We are working with files on OS now.

Got it working with this code

'import webbrowser
import subprocess
import os, time
  
for i in Final_Bioteck[6:11]:
        webbrowser.open( '{}.png'.format(i))
        time.sleep(3)
        subprocess.run(['taskkill', '/f', '/im', "i_view64.exe"]) 

Yeah, my i_view is 64 bit, that's what was causing the malfunction of the code. 
My original loop seems to work fine though.

I'm still not quite sure what ''/f"   and '/im' stand for though.    


Thank you so much.