From 1f8ecb0fd3c8abe3650fe9cf414fe549d364d2cc Mon Sep 17 00:00:00 2001
From: Austin Raney <aaraney@protonmail.com>
Date: Fri, 26 Jul 2024 11:02:40 -0400
Subject: [PATCH] chore: improve / modernize type hints

---
 python/hypy/hydrolocation/hydrolocation.py |  2 +-
 python/hypy/hydrolocation/nwis_location.py | 12 +++++++-----
 python/hypy/nexus.py                       | 19 ++++++++++++-------
 3 files changed, 20 insertions(+), 13 deletions(-)

diff --git a/python/hypy/hydrolocation/hydrolocation.py b/python/hypy/hydrolocation/hydrolocation.py
index ee63a8f..5d4066d 100644
--- a/python/hypy/hydrolocation/hydrolocation.py
+++ b/python/hypy/hydrolocation/hydrolocation.py
@@ -74,7 +74,7 @@ def realized_nexus(self) -> str:
         return self._realized_nexus
 
     @property
-    def geometry(self) -> Point | Tuple:
+    def geometry(self) -> Point | tuple[float, float]:
         """
             Geometric coordinates of the location as a `Point` or two-Tuple
         """
diff --git a/python/hypy/hydrolocation/nwis_location.py b/python/hypy/hydrolocation/nwis_location.py
index 8fcb76b..016b427 100644
--- a/python/hypy/hydrolocation/nwis_location.py
+++ b/python/hypy/hydrolocation/nwis_location.py
@@ -1,4 +1,6 @@
-from typing import Union, Tuple, TYPE_CHECKING
+from __future__ import annotations
+
+from typing import Tuple, TYPE_CHECKING
 from hydrotools import nwis_client
 
 from hypy.hydrolocation import HydroLocation, HydroLocationType
@@ -15,7 +17,7 @@ class NWISLocation(HydroLocation):
     def __init__(self,
                 station_id: str,
                 realized_nexus: str,
-                shape: Union['Point', Tuple] = None,
+                shape: Point | Tuple = None,
                 referenced_position = None, #TODO implement indirect position?
                 ):
         """
@@ -42,9 +44,9 @@ def station_id(self) -> str:
         return self._station_id
 
     def get_data(self,
-                 start: Union[ str, 'datetime', 'datetime64', 'Timestamp', None ] = None,
-                 end: Union[ str, 'datetime', 'datetime64', 'Timestamp', None ] = None
-                 ) -> 'DataFrame':
+                 start: str | datetime | datetime64 | Timestamp | None = None,
+                 end: str | datetime | datetime64 | Timestamp | None = None
+                 ) -> DataFrame:
         """
             Get observation data from nwis
         """
diff --git a/python/hypy/nexus.py b/python/hypy/nexus.py
index d79b17a..4df7cd9 100644
--- a/python/hypy/nexus.py
+++ b/python/hypy/nexus.py
@@ -1,7 +1,12 @@
-from typing import List, Optional, Tuple, TYPE_CHECKING, Union
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from .catchment import Catchment
 
 if TYPE_CHECKING:
-    from .catchment import Catchment, Catchments_Collection
+    from .catchment import Catchments_Collection
+    from .hydrolocation.hydrolocation import HydroLocation
 
 class Nexus():
     """
@@ -11,9 +16,9 @@ class Nexus():
 
     def __init__(self, 
                  nexus_id: str, 
-                 hydro_location,
-                 receiving_catchments: 'Catchments_Collection' = tuple(),
-                 contributing_catchments: 'Catchments_Collection' = tuple()):   
+                 hydro_location: HydroLocation,
+                 receiving_catchments: Catchments_Collection = tuple(),
+                 contributing_catchments: Catchments_Collection = tuple()):
         """
         Set the nexus identity and params
         
@@ -44,7 +49,7 @@ def id(self) -> str:
         return self._id
 
     @property
-    def receiving_catchments (self) -> Tuple['Catchment', ...]:
+    def receiving_catchments (self) -> tuple[Catchment, ...]:
         """Tuple of Catchment object(s) receiving water from nexus
 
         Returns
@@ -55,7 +60,7 @@ def receiving_catchments (self) -> Tuple['Catchment', ...]:
         return self._receiving_catchments 
 
     @property
-    def contributing_catchments (self) -> Tuple['Catchment', ...]:
+    def contributing_catchments (self) -> tuple[Catchment, ...]:
         """Tuple of Catchment object(s) contributing water to nexus
 
         Returns