only take into account positional arguments count in related error messages

3 files changed, 11 insertions, 3 deletions

diff --git a/Lib/inspect.py b/Lib/inspect.py
index d6ac4e0..bfb6d00 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -959,7 +959,7 @@ def getcallargs(func, *positional, **named):
         else:
             arg2value[varargs] = ()
     elif 0 < num_args < num_pos:
-        raise TypeError('%s() takes %s %d %s (%d given)' % (
+        raise TypeError('%s() takes %s %d positional %s (%d given)' % (
             f_name, 'at most' if defaults else 'exactly', num_args,
             'arguments' if num_args > 1 else 'argument', num_total))
     elif num_args == 0 and num_total:
diff --git a/Lib/test/test_extcall.py b/Lib/test/test_extcall.py
index cf882a5..c31e920 100644
--- a/Lib/test/test_extcall.py
+++ b/Lib/test/test_extcall.py
@@ -279,13 +279,13 @@ The number of arguments passed in includes keywords:
     >>> f(6, a=4, *(1, 2, 3))
     Traceback (most recent call last):
       ...
-    TypeError: f() takes exactly 1 argument (5 given)
+    TypeError: f() takes exactly 1 positional argument (5 given)
     >>> def f(a, *, kw):
     ...    pass
     >>> f(6, 4, kw=4)
     Traceback (most recent call last):
       ...
-    TypeError: f() takes exactly 2 arguments (3 given)
+    TypeError: f() takes exactly 1 positional argument (3 given)
 """
 
 import sys
diff --git a/Lib/test/test_keywordonlyarg.py b/Lib/test/test_keywordonlyarg.py
index 6a88b3d..bdcc4c6 100644
--- a/Lib/test/test_keywordonlyarg.py
+++ b/Lib/test/test_keywordonlyarg.py
@@ -73,6 +73,14 @@ class KeywordOnlyArgTestCase(unittest.TestCase):
         fundef3 += "lastarg):\n  pass\n"
         compile(fundef3, "<test>", "single")
 
+    def testTooManyPositionalErrorMessage(self):
+        def f(a, b=None, *, c=None):
+            pass
+        with self.assertRaises(TypeError) as exc:
+            f(1, 2, 3)
+        expected = "f() takes at most 2 positional arguments (3 given)"
+        self.assertEqual(str(exc.exception), expected)
+
     def testSyntaxErrorForFunctionCall(self):
         self.assertRaisesSyntaxError("f(p, k=1, p2)")
         self.assertRaisesSyntaxError("f(p, k1=50, *(1,2), k1=100)")