use typing for py before 3.10

src/mxdev/config.py

@@ -1,5 +1,5 @@
-from .logging import logger
 from .including import read_with_included
+from .logging import logger
 
 import os
 import pkg_resources

src/mxdev/including.py

@@ -3,12 +3,14 @@
 from urllib import parse
 from urllib import request
 
+import os
 import pathlib
 import tempfile
-import os
+import typing
+
 
 def resolve_dependencies(
-    file_or_url: str | pathlib.Path,
+    file_or_url: typing.Union[str, pathlib.Path],
     tmpdir: tempfile.TemporaryDirectory,
     http_parent=None,
 ) -> list[pathlib.Path]:

src/mxdev/tests/test_including.py

@@ -43,6 +43,7 @@ def test_resolve_dependencies_filenotfound(tmp_path):
     with pytest.raises(FileNotFoundError):
         resolve_dependencies(base / "file__not_found.ini", tmp_path)
 
+
 def test_read_with_included():
     from mxdev.including import read_with_included
 
@@ -53,4 +54,3 @@ def test_read_with_included():
     assert cfg["settings"]["unique_2"] == "2"
     assert cfg["settings"]["unique_3"] == "3"
     assert cfg["settings"]["unique_4"] == "4"
-