fix: make RPM runtime portable on Tumbleweed

src/fenris/monitor.py

@@ -21,12 +21,17 @@ import sqlite3
 from datetime import datetime, timezone
 from pathlib import Path
 
-# Add the venv to path if running from the installed location
+# Package dependencies are vendored independently of the host Python minor
+# version.  Keep the venv fallback for the legacy development install.
 VENV_DIR = Path("/opt/fenris")
 if VENV_DIR.exists():
-    site_packages = next((VENV_DIR / "lib").glob("python*/site-packages"), None)
-    if site_packages:
-        sys.path.insert(0, str(site_packages))
+    vendor_dir = VENV_DIR / "vendor"
+    if vendor_dir.is_dir():
+        sys.path.insert(0, str(vendor_dir))
+    else:
+        site_packages = next((VENV_DIR / "lib").glob("python*/site-packages"), None)
+        if site_packages:
+            sys.path.insert(0, str(site_packages))
 
 from fenris.store import init_store, get_store_path
 from fenris.monitoring_periods import (
@@ -53,10 +58,6 @@ def cmd_enable(args: argparse.Namespace) -> None:
     - Resume with no open period: opens a new row
     """
     store_path = getattr(args, 'store_path', DEFAULT_STORE_PATH)
-    if not store_path.exists():
-        print("Error: Observation store not found at", store_path, file=sys.stderr)
-        sys.exit(1)
-
     conn = init_store(store_path)
     now = datetime.now(timezone.utc)