Check in some documentation tweaks for PEP 3141, add some tests, and implement

the promotion to complex on pow(negative, fraction).

3 files changed, 4 insertions, 13 deletions

diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
index d9633af..b6b45ee 100644
--- a/Lib/test/test_builtin.py
+++ b/Lib/test/test_builtin.py
@@ -1358,11 +1358,13 @@ class BuiltinTest(unittest.TestCase):
                     else:
                         self.assertAlmostEqual(pow(x, y, z), 24.0)
 
+        self.assertAlmostEqual(pow(-1, 0.5), 1j)
+        self.assertAlmostEqual(pow(-1, 1/3), 0.5 + 0.8660254037844386j)
+
         self.assertRaises(TypeError, pow, -1, -2, 3)
         self.assertRaises(ValueError, pow, 1, 2, 0)
         self.assertRaises(TypeError, pow, -1, -2, 3)
         self.assertRaises(ValueError, pow, 1, 2, 0)
-        self.assertRaises(ValueError, pow, -342.43, 0.234)
 
         self.assertRaises(TypeError, pow)
 
diff --git a/Lib/test/test_complex.py b/Lib/test/test_complex.py
index b4082d9..5397ad6 100644
--- a/Lib/test/test_complex.py
+++ b/Lib/test/test_complex.py
@@ -1,13 +1,6 @@
 import unittest, os
 from test import test_support
 
-import warnings
-warnings.filterwarnings(
-    "ignore",
-    category=DeprecationWarning,
-    message=".*complex divmod.*are deprecated"
-)
-
 from random import random
 
 # These tests ensure that complex math does the right thing
@@ -108,6 +101,7 @@ class ComplexTest(unittest.TestCase):
         # % is no longer supported on complex numbers
         self.assertRaises(TypeError, (1+1j).__mod__, 0+0j)
         self.assertRaises(TypeError, lambda: (3.33+4.43j) % 0)
+        self.assertRaises(TypeError, (1+1j).__mod__, 4.3j)
 
     def test_divmod(self):
         self.assertRaises(TypeError, divmod, 1+1j, 1+0j)
diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index 47b647c..bfa6a64 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -3,13 +3,8 @@
 from test.test_support import verify, vereq, verbose, TestFailed, TESTFN
 from test.test_support import get_original_stdout
 from copy import deepcopy
-import warnings
 import types
 
-warnings.filterwarnings("ignore",
-         r'complex divmod\(\), // and % are deprecated$',
-         DeprecationWarning, r'(<string>|%s)$' % __name__)
-
 def veris(a, b):
     if a is not b:
         raise TestFailed("%r is %r" % (a, b))