FIX: Drop session from prefix if no session level

nipreps · Oct 14, 2024 · ccc598c · ccc598c
1 parent a4ccc21
commit ccc598c
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/nibabies/utils/bids.py b/nibabies/utils/bids.py
@@ -236,8 +236,8 @@ def parse_bids_for_age_months(
 
     # Play nice with sessions
     subject = f'sub-{subject_id}'
-    session = f'ses-{session_id}' or ''
-    prefix = f'{subject}' + f'_{session}' if session else ''
+    session = f'ses-{session_id}' if session_id else ''
+    prefix = f'{subject}' + (f'_{session}' if session else '')
 
     subject_level = session_level = Path(bids_root) / subject
     if session_id: