fix(pytest_plugin,tests): Import DoctestItem deeper

Author: tony

src/libvcs/conftest.py

@@ -3,14 +3,14 @@
 
 import pytest
 
-from _pytest.doctest import DoctestItem
-
 
 @pytest.fixture(autouse=True)
 def add_doctest_fixtures(
     request: pytest.FixtureRequest,
     doctest_namespace: t.Dict[str, t.Any],
 ) -> None:
+    from _pytest.doctest import DoctestItem
+
     if isinstance(request._pyfuncitem, DoctestItem):
         request.getfixturevalue("add_doctest_fixtures")
         request.getfixturevalue("set_home")

src/libvcs/pytest_plugin.py

@@ -9,8 +9,6 @@
 
 import pytest
 
-from _pytest.doctest import DoctestItem
-
 from libvcs._internal.run import run
 from libvcs.sync.git import GitRemote, GitSync
 from libvcs.sync.hg import HgSync
@@ -419,6 +417,8 @@ def add_doctest_fixtures(
     create_hg_remote_repo: CreateProjectCallbackFixtureProtocol,
     git_repo: pathlib.Path,
 ) -> None:
+    from _pytest.doctest import DoctestItem
+
     if not isinstance(request._pyfuncitem, DoctestItem):  # Only run on doctest items
         return
     doctest_namespace["tmp_path"] = tmp_path