Create ecoeval/logging_utils.py

ecoeval/logging_utils.py

@@ -0,0 +1,33 @@
+# ecoeval/logging_utils.py
+import os
+from datetime import datetime
+from typing import Dict, Optional
+
+import pandas as pd
+
+
+def append_run_to_csv(path: str, row: Dict):
+    """
+    Append a single run row to CSV, adding a timestamp.
+    """
+    os.makedirs(os.path.dirname(path) or ".", exist_ok=True)
+    row_with_time = {"timestamp": datetime.utcnow().isoformat() + "Z"}
+    row_with_time.update(row)
+
+    df_new = pd.DataFrame([row_with_time])
+    if os.path.exists(path):
+        df = pd.read_csv(path)
+        df = pd.concat([df, df_new], ignore_index=True)
+    else:
+        df = df_new
+    df.to_csv(path, index=False)
+
+
+def load_leaderboard(path: str) -> Optional[pd.DataFrame]:
+    if not os.path.exists(path):
+        return None
+    try:
+        df = pd.read_csv(path)
+        return df
+    except Exception:
+        return None