Removed bad type hints.

src/abacus/utils/portfolio.py

@@ -1,5 +1,4 @@
 # -*- coding: utf-8 -*-
-from typing import NoReturn
 
 
 
@@ -11,7 +10,7 @@ def __init__(self, holdings: dict[str:int]=None, weights: dict[str:float]=None,
         self._cash = cash
 
     @property
-    def weights(self) -> dict[str:float] | NoReturn:
+    def weights(self) -> dict[str:float]:
         if not self._weights:
             raise ValueError("No weights are available.")
         return self._weights
@@ -21,7 +20,7 @@ def weights(self, new):
         self._weights = new
 
     @property
-    def holdings(self) -> dict[str:int] | NoReturn:
+    def holdings(self) -> dict[str:int]:
         if not self._weights:
             raise ValueError("No holdings are available.")
         return self._holdings
@@ -31,7 +30,7 @@ def holdings(self, new):
         self._holdings = new
 
     @property
-    def cash(self) -> float | NoReturn:
+    def cash(self) -> float:
         if not self._cash:
             raise ValueError("No cash is available.")
         return self._cash
@@ -48,15 +47,15 @@ def weights_from_holdings(self) -> dict[str:float]:
         return {ticker: holding/total_holdings for ticker, holding in self._holdings.items()}
 
     @property
-    def indices(self) -> list[int] | NoReturn:
+    def indices(self) -> list[int]:
         if self._holdings:
             return [instrument.id for instrument in self._holdings]
         elif self._weights:
             return [instrument.id for instrument in self._weights]
         raise ValueError("Portfolio has no instruments.")
 
     @property
-    def instruments(self) -> list[str] | NoReturn:
+    def instruments(self) -> list[str]:
         if self._holdings:
             return self._holdings.keys()
         elif self._weights: