diff --git a/lib/spack/spack/cmd/__init__.py b/lib/spack/spack/cmd/__init__.py
index 9449face85a..11569a34c70 100644
--- a/lib/spack/spack/cmd/__init__.py
+++ b/lib/spack/spack/cmd/__init__.py
@@ -25,6 +25,7 @@
 import spack.extensions
 import spack.parser
 import spack.paths
+import spack.repo
 import spack.spec
 import spack.store
 import spack.traverse as traverse
diff --git a/lib/spack/spack/mirror.py b/lib/spack/spack/mirror.py
index 328a456fc3c..fe38d1f963a 100644
--- a/lib/spack/spack/mirror.py
+++ b/lib/spack/spack/mirror.py
@@ -180,7 +180,7 @@ def ensure_mirror_usable(self, direction: str = "push"):
         if errors:
             msg = f"invalid {direction} configuration for mirror {self.name}: "
             msg += "\n    ".join(errors)
-            raise spack.mirror.MirrorError(msg)
+            raise MirrorError(msg)
 
     def _update_connection_dict(self, current_data: dict, new_data: dict, top_level: bool):
         # Only allow one to exist in the config
diff --git a/lib/spack/spack/test/abi_splicing.py b/lib/spack/spack/test/abi_splicing.py
index 97601c578a0..b36c285b134 100644
--- a/lib/spack/spack/test/abi_splicing.py
+++ b/lib/spack/spack/test/abi_splicing.py
@@ -10,9 +10,6 @@
 
 import spack.config
 import spack.deptypes as dt
-import spack.package_base
-import spack.paths
-import spack.repo
 import spack.solver.asp
 from spack.installer import PackageInstaller
 from spack.spec import Spec
diff --git a/lib/spack/spack/test/cmd/init_py_functions.py b/lib/spack/spack/test/cmd/init_py_functions.py
index deb6222411b..d7245c6ecce 100644
--- a/lib/spack/spack/test/cmd/init_py_functions.py
+++ b/lib/spack/spack/test/cmd/init_py_functions.py
@@ -4,9 +4,11 @@
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 import pytest
 
+import spack.config
 import spack.environment as ev
 import spack.error
 import spack.solver.asp as asp
+import spack.store
 from spack.cmd import (
     CommandNameError,
     PythonNameError,
diff --git a/lib/spack/spack/test/cmd/spec.py b/lib/spack/spack/test/cmd/spec.py
index 1d0d08f494b..dda48de4df0 100644
--- a/lib/spack/spack/test/cmd/spec.py
+++ b/lib/spack/spack/test/cmd/spec.py
@@ -7,6 +7,7 @@
 
 import pytest
 
+import spack.config
 import spack.environment as ev
 import spack.error
 import spack.spec