Convert images to XBM; e.g. "python3 convert.py img.png icon.h" or "python3 convert.py img.png icon.h icon_name"

convert.py

import sys
import os
from PIL import Image

if __name__ == "__main__":
	if len(sys.argv) < 3:
		print("Not enough arguments; needs input and output!")
	else:
		image = Image.open(sys.argv[1])
		image = image.convert("L")

		width, height = image.size

		characters = list()
		data = image.getdata()
		for i in range(len(data)):
			if i % 8 == 0:
				characters.append(0x00)
			if data[i] < 128:
				characters[-1] |= 0x01 << (i % 8)

		name = os.path.splitext(os.path.basename(sys.argv[2]))[0]
		if len(sys.argv) > 3:
			name = sys.argv[3]

		with open(sys.argv[2], "w") as file:
			file.write("#define {}_width {}\n".format(name, width))
			file.write("#define {}_height {}\n".format(name, height))
			file.write("static char {}_bits[] = {{{}}};\n".format(name, ", ".join(["0x{:02x}".format(x) for x in characters])))