BLD: Remove use of | union operators in singledispatch methods for python 3.10 compatibility

Author: ryder-davidson

pyproject.toml

@@ -11,7 +11,7 @@ requires = ["setuptools >= 77.0.3"]
 # ----------------
 [project]
 name = "psi-pyvisual"
-version = "1.0.1"
+version = "1.0.2"
 description = "3D Visualization Tools for Solar Physics"
 authors = [
   {name = "Predictive Science Inc.", email = "webmaster@predsci.com"},

pyvisual/core/mesh3d.py

@@ -899,9 +899,10 @@ def _dispatch_input(self,
         msg = f"Unsupported input type: {type(uinput)}"
         raise NotImplementedError(msg)
 
-    @_dispatch_input.register
+    @_dispatch_input.register(str)
+    @_dispatch_input.register(Path)
     def _(self,
-          uinput: str | Path,
+          uinput,
           *args,
           data,
           dataid,
@@ -912,9 +913,10 @@ def _(self,
         file_data, *scales = read_hdf_by_index(ifile, *args, dataset_id=dataid, return_scales=True)
         return self._parse_input(iformat, file_data if data is None else data, *scales, **kwargs)
 
-    @_dispatch_input.register
+    @_dispatch_input.register(Iterable)
+    @_dispatch_input.register(Number)
     def _(self,
-          uinput: Iterable | Number,
+          uinput,
           *args,
           data,
           iformat,