(un)set with --overwrite can do better than shutil.copyfile

[edswangren]

It seems to me, anyway.

from commands.py:538 tiff_set

if os.path.realpath(source) == os.path.realpath(output) and source != '-':
    with tempfile.TemporaryDirectory('tifftools') as tmpdir:
        output = os.path.join(tmpdir, 'output.tiff')
        _tiff_set(source, output, setlist, unset, setfrom, **kwargs)
        with open(source, 'r+b') as fdest, open(output, 'rb') as fsrc:
           fdest.truncate(0)
            shutil.copyfileobj(fsrc, fdest)

I lost a file just now sending an interrupt during shutil.copyfileobj. os.replace or even shutil.move are safer and more efficient alternatives.