mypy: unsupported operand type(s) for | in py3.9

Author: philogicae

src/aleph/sdk/client/abstract.py

@@ -247,7 +247,7 @@ def watch_messages(
     @abstractmethod
     def get_estimated_price(
         self,
-        content: ProgramContent | InstanceContent,
+        content: Union[ProgramContent, InstanceContent],
     ) -> Coroutine[Any, Any, PriceResponse]:
         """
         Get Instance/Program content estimated price

src/aleph/sdk/client/http.py

@@ -460,7 +460,7 @@ async def watch_messages(
 
     async def get_estimated_price(
         self,
-        content: ProgramContent | InstanceContent,
+        content: Union[ProgramContent, InstanceContent],
     ) -> PriceResponse:
         item_content: str = json.dumps(
             content, separators=(",", ":"), default=extended_json_encoder

src/aleph/sdk/utils.py

@@ -414,7 +414,7 @@ def safe_getattr(obj, attr, default=None):
 
 
 def displayable_amount(
-    amount: str | int | float | Decimal, decimals: Optional[int] = None
+    amount: Union[str, int, float, Decimal], decimals: Optional[int] = None
 ) -> str:
     """Returns the amount as a string without unnecessary decimals."""