<jupyter_start><jupyter_text>Large backups and transient isosWhen doing a large backup I will not have enough space to store all the iso image files.  So after each one has been created I will need to destroy it.  This is the code to test that.<jupyter_code>import os
for n in range(2):
    filename = f"new_{n:04}.iso"
    if os.path.isfile(filename):
        print(f'File {filename} exists')
        os.remove(filename)
    else:
        print(f'--- File {filename} missing')<jupyter_output>File new_0000.iso exists
File new_0001.iso exists
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