MAINT: Remove implicit inheritance from object class (#15236)

Inheriting from object was necessary for Python 2 compatibility to use
new-style classes. In Python 3, this is unnecessary as there are no
old-style classes.

Dropping the object is more idiomatic Python.

1 files changed, 5 insertions, 5 deletions

diff --git a/numpy/tests/test_ctypeslib.py b/numpy/tests/test_ctypeslib.py
index 5e19f06ce..af3730df1 100644
--- a/numpy/tests/test_ctypeslib.py
+++ b/numpy/tests/test_ctypeslib.py
@@ -35,7 +35,7 @@ else:
                     reason="ctypes not available in this python")
 @pytest.mark.skipif(sys.platform == 'cygwin',
                     reason="Known to fail on cygwin")
-class TestLoadLibrary(object):
+class TestLoadLibrary:
     def test_basic(self):
         try:
             # Should succeed
@@ -61,7 +61,7 @@ class TestLoadLibrary(object):
             print(msg)
 
 
-class TestNdpointer(object):
+class TestNdpointer:
     def test_dtype(self):
         dt = np.intc
         p = ndpointer(dtype=dt)
@@ -128,7 +128,7 @@ class TestNdpointer(object):
 
 @pytest.mark.skipif(ctypes is None,
                     reason="ctypes not available on this python installation")
-class TestNdpointerCFunc(object):
+class TestNdpointerCFunc:
     def test_arguments(self):
         """ Test that arguments are coerced from arrays """
         c_forward_pointer.restype = ctypes.c_void_p
@@ -184,7 +184,7 @@ class TestNdpointerCFunc(object):
 
 @pytest.mark.skipif(ctypes is None,
                     reason="ctypes not available on this python installation")
-class TestAsArray(object):
+class TestAsArray:
     def test_array(self):
         from ctypes import c_int
 
@@ -275,7 +275,7 @@ class TestAsArray(object):
 
 @pytest.mark.skipif(ctypes is None,
                     reason="ctypes not available on this python installation")
-class TestAsCtypesType(object):
+class TestAsCtypesType:
     """ Test conversion from dtypes to ctypes types """
     def test_scalar(self):
         dt = np.dtype('<u2')