FIX mypy warning

provinzio · Jan 2, 2025 · bcd32f6 · bcd32f6
1 parent 643b2b6
commit bcd32f6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/book.py b/src/book.py
@@ -456,7 +456,7 @@ def _read_coinbase(self, file_path: Path, version: int = 1) -> None:
                 eur_subtotal = misc.xdecimal(_eur_subtotal)
                 if version == 4:
                     change = abs(change)
-                    eur_subtotal = abs(eur_subtotal)
+                    eur_subtotal = abs(eur_subtotal) if eur_subtotal else None
                 if eur_subtotal is None:
                     # Cost without fees from CSV is missing. This can happen for
                     # old transactions (<2018), event though something was bought.