FIX: Remove dead code paths identified by coverage, add PY310 tag

nibabel/__init__.py

@@ -170,10 +170,7 @@ def bench(label=None, verbose=1, extra_argv=None):
     code : ExitCode
         Returns the result of running the tests as a ``pytest.ExitCode`` enum
     """
-    try:
-        from importlib.resources import as_file, files
-    except ImportError:
-        from importlib_resources import as_file, files
+    from importlib.resources import as_file, files
 
     args = []
     if extra_argv is not None:

nibabel/conftest.py

@@ -10,10 +10,7 @@
 
 @pytest.fixture(scope='session', autouse=True)
 def legacy_printoptions():
-    from packaging.version import Version
-
-    if Version(np.__version__) >= Version('1.22'):
-        np.set_printoptions(legacy='1.21')
+    np.set_printoptions(legacy='1.21')
 
 
 @pytest.fixture
@@ -24,7 +21,7 @@ def max_digits():
         orig_max_str_digits = sys.get_int_max_str_digits()
         yield sys.set_int_max_str_digits
         sys.set_int_max_str_digits(orig_max_str_digits)
-    except AttributeError:  # pragma: no cover
+    except AttributeError:  # PY310 # pragma: no cover
         # Nothing to do for versions of Python that lack these methods
         # They were added as DoS protection in Python 3.11 and backported to
         # some other versions.

nibabel/tests/test_init.py

@@ -1,14 +1,10 @@
 import pathlib
 import unittest
+from importlib.resources import files
 from unittest import mock
 
 import pytest
 
-try:
-    from importlib.resources import files
-except ImportError:
-    from importlib_resources import files
-
 import nibabel as nib