Better exchange repairing

Author: mrvisscher

activity_browser/ui/tables/models/activity.py

@@ -4,6 +4,7 @@
 from logging import getLogger
 
 import pandas as pd
+import numpy as np
 from asteval import Interpreter
 from bw2data.parameters import (ActivityParameter, DatabaseParameter, Group,
                                 ProjectParameter)
@@ -62,9 +63,13 @@ def create_row(self, exchange) -> dict:
         """Take the given Exchange object and extract a number of attributes."""
         try:
             # fixing a broken exchange
-            if not isinstance(exchange.get("amount"), float):
+            if not isinstance(exchange.get("amount"), float) or pd.isna(exchange.get("amount")):
                 log.warning(f"Fixing broken exchange amount for {exchange.get('type', '')} exchange from: {exchange.input}")
-                exchange["amount"] = 1.0  # Ensure amount is a float
+                try:
+                    amount = float(exchange.get("amount")) if exchange.get("amount") is not np.nan else 1.0
+                except TypeError:
+                    amount = 1.0
+                exchange["amount"] = amount
                 exchange.save()
 
             row = {