Generate GuidedTrack code to invisibly load all a program's images on its first page, so that they load instantly on later pages

preload_guidedtrack_images.py

# NB: you may need to convert tabs to spaces when you copy it into your GT program

gt_program = r"""copy and paste your program here>"""

lines = gt_program.split('\n')

images = []
for command in ["*image: ", "\t\t*picture: "]:
    images.extend([line[len(command):] for line in lines if line.startswith(command)])

print(r"""
*html
	<style>
	.imagesToPreload {
		display:none;
	}
	</style>

*component
	*classes: imagesToPreload
""")

print("\n".join("\t*image: " + image for image in images))