[tools] Font generation with Python 3

Author: becseya

.github/workflows/linux.yml

@@ -118,6 +118,7 @@ jobs:
         run: |
           python3 tools/scripts/authors.py --handles --count --shoutout --since 2017-01-01
           python3 tools/xpcc_generator/builder/system_layout.py examples/xpcc/xml/communication.xml -o /tmp
+          python3 tools/font_creator/font_export.py tools/font_creator/fonts/all_caps_3x5.font /tmp/all_caps_converted
 
   stm32-examples:
     runs-on: ubuntu-22.04

tools/font_creator/font_export.py

@@ -152,7 +152,7 @@ def read_font_file(filename):
 				if c == " ":
 					pass
 				elif c == "#":
-					y = char_line_index / 8
+					y = int(char_line_index / 8)
 					offset = y * char.width
 					char.data[offset + index] |= 1 << (char_line_index % 8)
 				else: