fallback version info form CHANGELOG.md

modules/launch_utils.py

@@ -69,7 +69,8 @@ def git_tag():
         return subprocess.check_output([git, "describe", "--tags"], shell=False, encoding='utf8').strip()
     except Exception:
         try:
-            changelog_md = pathlib.Path(__file__).parent.parent / "CHANGELOG.md"
+            from pathlib import Path
+            changelog_md = Path(__file__).parent.parent / "CHANGELOG.md"
             with changelog_md.open(encoding="utf-8") as file:
                 return next((line.strip() for line in file if line.strip()), "<none>")
         except Exception: