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\path\to\trc-image-titler.py -o \path\to\output
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# Save file as .pyw if you want to
# doubleclick the file and have the script run in background
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# The easiest way is probably to make a .bat file and put that into your desktop folder
# Then in that .bat file, put this in
python your-script-to-run.py
# Write down the specific path to that file if you don't want to pu the .py file in your desktop folder.