diff --git a/src/aspectlib/__init__.py b/src/aspectlib/__init__.py
index b85f1dd..b7d0f70 100644
--- a/src/aspectlib/__init__.py
+++ b/src/aspectlib/__init__.py
@@ -18,6 +18,7 @@ from logging import getLogger
 from .utils import PY2
 from .utils import PY3
 from .utils import PY37plus
+from .utils import PY310
 from .utils import Sentinel
 from .utils import basestring
 from .utils import force_bind
diff --git a/src/aspectlib/utils.py b/src/aspectlib/utils.py
index 9e0837e..b08f2d6 100644
--- a/src/aspectlib/utils.py
+++ b/src/aspectlib/utils.py
@@ -13,6 +13,7 @@ RegexType = type(re.compile(""))
 
 PY3 = sys.version_info[0] == 3
 PY37plus = PY3 and sys.version_info[1] >= 7
+PY310 = PY3 and sys.version_info[1] == 10
 PY2 = sys.version_info[0] == 2
 PY26 = PY2 and sys.version_info[1] == 6
 PYPY = platform.python_implementation() == 'PyPy'
diff --git a/tests/test_aspectlib_test.py b/tests/test_aspectlib_test.py
index 05e2c25..37fe8e8 100644
--- a/tests/test_aspectlib_test.py
+++ b/tests/test_aspectlib_test.py
@@ -4,6 +4,7 @@ from pytest import raises
 from test_pkg1.test_pkg2 import test_mod
 
 from aspectlib import PY2
+from aspectlib import PY310
 from aspectlib.test import OrderedDict
 from aspectlib.test import Story
 from aspectlib.test import StoryResultWrapper
@@ -414,6 +415,7 @@ def test_story_empty_play_proxy_class():
         (('stuff_1', 'mix', "'a', 'b'", ''), _Returns("(1, 2, 'a', 'b')")),
         (('stuff_1', 'meth', "123", ''), _Raises(repr_ex(TypeError(
             'meth() takes exactly 1 argument (2 given)' if PY2 else
+            'Stuff.meth() takes 1 positional argument but 2 were given' if PY310 else
             'meth() takes 1 positional argument but 2 were given'
         )))),
         ((None, 'test_pkg1.test_pkg2.test_mod.Stuff', "0, 1", ''), _Binds('stuff_2')),
@@ -421,6 +423,7 @@ def test_story_empty_play_proxy_class():
         (('stuff_2', 'mix', "3, 4", ''), _Returns("(0, 1, 3, 4)")),
         (('stuff_2', 'meth', "123", ''), _Raises(repr_ex(TypeError(
             'meth() takes exactly 1 argument (2 given)' if PY2 else
+            'Stuff.meth() takes 1 positional argument but 2 were given' if PY310 else
             'meth() takes 1 positional argument but 2 were given'
         ))))
     ]))
@@ -449,6 +452,7 @@ def test_story_half_play_proxy_class():
         (('stuff_1', 'meth', '', ''), _Returns('None')),
         (('stuff_1', 'meth', '123', ''), _Raises(repr_ex(TypeError(
             'meth() takes exactly 1 argument (2 given)' if PY2 else
+            'Stuff.meth() takes 1 positional argument but 2 were given' if PY310 else
             'meth() takes 1 positional argument but 2 were given'
         )))),
         ((None, 'test_pkg1.test_pkg2.test_mod.Stuff', '0, 1', ''), _Binds("stuff_2")),
@@ -456,6 +460,7 @@ def test_story_half_play_proxy_class():
         (('stuff_2', 'mix',  '3, 4', ''), _Returns('(0, 1, 3, 4)')),
         (('stuff_2', 'meth', '123', ''), _Raises(repr_ex(TypeError(
             'meth() takes exactly 1 argument (2 given)' if PY2 else
+            'Stuff.meth() takes 1 positional argument but 2 were given' if PY310 else
             'meth() takes 1 positional argument but 2 were given'
         ))))
     ]))