Read version from game file (thanks to An Anime Game Launcher project)

Basically I copied their method of doing that and their regex pattern.

worthless/patcher.py

@@ -18,7 +18,7 @@ class Patcher:
             self._temp_path = Path(self._appdirs.user_cache_dir)
         else:
             if not isinstance(data_dir, Path):
-                override_data_dir = Path(data_dir)
+                data_dir = Path(data_dir)
             self._patch_path = data_dir.joinpath("Patch")
             self._temp_path = data_dir.joinpath("Temp")