Issue #21853: Fixed the inspect module in unicode disabled build.

Lib/inspect.py

@@ -969,8 +969,13 @@ def getcallargs(func, *positional, **named):
         assign(varkw, named)
     elif named:
         unexpected = next(iter(named))
-        if isinstance(unexpected, unicode):
-            unexpected = unexpected.encode(sys.getdefaultencoding(), 'replace')
+        try:
+            unicode
+        except NameError:
+            pass
+        else:
+            if isinstance(unexpected, unicode):
+                unexpected = unexpected.encode(sys.getdefaultencoding(), 'replace')
         raise TypeError("%s() got an unexpected keyword argument '%s'" %
                         (f_name, unexpected))
     unassigned = num_args - len([arg for arg in args if is_assigned(arg)])

Lib/test/test_inspect.py

@@ -8,7 +8,7 @@ import datetime
 from UserList import UserList
 from UserDict import UserDict
 
-from test.test_support import run_unittest, check_py3k_warnings
+from test.test_support import run_unittest, check_py3k_warnings, have_unicode
 
 with check_py3k_warnings(
         ("tuple parameter unpacking has been removed", SyntaxWarning),
@@ -17,7 +17,10 @@ with check_py3k_warnings(
     from test import inspect_fodder2 as mod2
 
 # C module for test_findsource_binary
-import unicodedata
+try:
+    import unicodedata
+except ImportError:
+    unicodedata = None
 
 # Functions tested in this suite:
 # ismodule, isclass, ismethod, isfunction, istraceback, isframe, iscode,
@@ -798,7 +801,8 @@ class TestGetcallargsFunctions(unittest.TestCase):
             self.assertEqualException(f, '2, c=3')
             self.assertEqualException(f, '2, 3, c=4')
             self.assertEqualException(f, '2, c=4, b=3')
-            self.assertEqualException(f, '**{u"\u03c0\u03b9": 4}')
+            if have_unicode:
+                self.assertEqualException(f, '**{u"\u03c0\u03b9": 4}')
             # f got multiple values for keyword argument
             self.assertEqualException(f, '1, a=2')
             self.assertEqualException(f, '1, **{"a":2}')