Merge.

19 files changed, 402 insertions, 33 deletions

diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index e124fab..c9e36fb 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -1349,7 +1349,8 @@ def transient_internet(resource_name, *, timeout=30.0, errnos=()):
              500 <= err.code <= 599) or
             (isinstance(err, urllib.error.URLError) and
                  (("ConnectionRefusedError" in err.reason) or
-                  ("TimeoutError" in err.reason))) or
+                  ("TimeoutError" in err.reason) or
+                  ("EOFError" in err.reason))) or
             n in captured_errnos):
             if not verbose:
                 sys.stderr.write(denied.args[0] + "\n")
diff --git a/Lib/test/support/script_helper.py b/Lib/test/support/script_helper.py
index 9c2e9eb..c45d010 100644
--- a/Lib/test/support/script_helper.py
+++ b/Lib/test/support/script_helper.py
@@ -73,6 +73,10 @@ def run_python_until_end(*args, **env_vars):
     # Need to preserve the original environment, for in-place testing of
     # shared library builds.
     env = os.environ.copy()
+    # set TERM='' unless the TERM environment variable is passed explicitly
+    # see issues #11390 and #18300
+    if 'TERM' not in env_vars:
+        env['TERM'] = ''
     # But a special flag that can be set to override -- in this case, the
     # caller is responsible to pass the full environment.
     if env_vars.pop('__cleanenv', None):
diff --git a/Lib/test/test_asyncio/test_base_events.py b/Lib/test/test_asyncio/test_base_events.py
index 0807dfb..206ebc6 100644
--- a/Lib/test/test_asyncio/test_base_events.py
+++ b/Lib/test/test_asyncio/test_base_events.py
@@ -1185,14 +1185,14 @@ class BaseEventLoopWithSelectorTests(test_utils.TestCase):
             test_utils.run_briefly(self.loop)  # allow transport to close
 
         sock.family = socket.AF_INET6
-        coro = self.loop.create_connection(asyncio.Protocol, '::2', 80)
+        coro = self.loop.create_connection(asyncio.Protocol, '::1', 80)
         t, p = self.loop.run_until_complete(coro)
         try:
-            # Without inet_pton we use getaddrinfo, which transforms ('::2', 80)
-            # to ('::0.0.0.2', 80, 0, 0). The last 0s are flow info, scope id.
+            # Without inet_pton we use getaddrinfo, which transforms ('::1', 80)
+            # to ('::1', 80, 0, 0). The last 0s are flow info, scope id.
             [address] = sock.connect.call_args[0]
             host, port = address[:2]
-            self.assertRegex(host, r'::(0\.)*2')
+            self.assertRegex(host, r'::(0\.)*1')
             self.assertEqual(port, 80)
             _, kwargs = m_socket.socket.call_args
             self.assertEqual(kwargs['family'], m_socket.AF_INET6)
diff --git a/Lib/test/test_compile.py b/Lib/test/test_compile.py
index e0fdee3..824e843 100644
--- a/Lib/test/test_compile.py
+++ b/Lib/test/test_compile.py
@@ -472,6 +472,13 @@ if 1:
         d = {f(): f(), f(): f()}
         self.assertEqual(d, {1: 2, 3: 4})
 
+    def test_compile_filename(self):
+        for filename in ('file.py', b'file.py',
+                         bytearray(b'file.py'), memoryview(b'file.py')):
+            code = compile('pass', filename, 'exec')
+            self.assertEqual(code.co_filename, 'file.py')
+        self.assertRaises(TypeError, compile, 'pass', list(b'file.py'), 'exec')
+
     @support.cpython_only
     def test_same_filename_used(self):
         s = """def f(): pass\ndef g(): pass"""
diff --git a/Lib/test/test_contextlib.py b/Lib/test/test_contextlib.py
index 30a6377..516403e 100644
--- a/Lib/test/test_contextlib.py
+++ b/Lib/test/test_contextlib.py
@@ -762,6 +762,40 @@ class TestExitStack(unittest.TestCase):
         stack.push(cm)
         self.assertIs(stack._exit_callbacks[-1], cm)
 
+    def test_dont_reraise_RuntimeError(self):
+        # https://bugs.python.org/issue27122
+        class UniqueException(Exception): pass
+        class UniqueRuntimeError(RuntimeError): pass
+
+        @contextmanager
+        def second():
+            try:
+                yield 1
+            except Exception as exc:
+                raise UniqueException("new exception") from exc
+
+        @contextmanager
+        def first():
+            try:
+                yield 1
+            except Exception as exc:
+                raise exc
+
+        # The UniqueRuntimeError should be caught by second()'s exception
+        # handler which chain raised a new UniqueException.
+        with self.assertRaises(UniqueException) as err_ctx:
+            with ExitStack() as es_ctx:
+                es_ctx.enter_context(second())
+                es_ctx.enter_context(first())
+                raise UniqueRuntimeError("please no infinite loop.")
+
+        exc = err_ctx.exception
+        self.assertIsInstance(exc, UniqueException)
+        self.assertIsInstance(exc.__context__, UniqueRuntimeError)
+        self.assertIsNone(exc.__context__.__context__)
+        self.assertIsNone(exc.__context__.__cause__)
+        self.assertIs(exc.__cause__, exc.__context__)
+
 
 class TestRedirectStream:
 
diff --git a/Lib/test/test_coroutines.py b/Lib/test/test_coroutines.py
index 4f725ae..d0cefb0 100644
--- a/Lib/test/test_coroutines.py
+++ b/Lib/test/test_coroutines.py
@@ -1423,7 +1423,7 @@ class CoroutineTest(unittest.TestCase):
 
         with warnings.catch_warnings():
             warnings.simplefilter("error")
-            # Test that __aiter__ that returns an asyncronous iterator
+            # Test that __aiter__ that returns an asynchronous iterator
             # directly does not throw any warnings.
             run_async(main())
         self.assertEqual(I, 111011)
diff --git a/Lib/test/test_curses.py b/Lib/test/test_curses.py
index 8411cdb..897d738 100644
--- a/Lib/test/test_curses.py
+++ b/Lib/test/test_curses.py
@@ -10,6 +10,7 @@
 #
 
 import os
+import string
 import sys
 import tempfile
 import unittest
@@ -399,6 +400,55 @@ class MiscTests(unittest.TestCase):
 
 class TestAscii(unittest.TestCase):
 
+    def test_controlnames(self):
+        for name in curses.ascii.controlnames:
+            self.assertTrue(hasattr(curses.ascii, name), name)
+
+    def test_ctypes(self):
+        def check(func, expected):
+            with self.subTest(ch=c, func=func):
+                self.assertEqual(func(i), expected)
+                self.assertEqual(func(c), expected)
+
+        for i in range(256):
+            c = chr(i)
+            b = bytes([i])
+            check(curses.ascii.isalnum, b.isalnum())
+            check(curses.ascii.isalpha, b.isalpha())
+            check(curses.ascii.isdigit, b.isdigit())
+            check(curses.ascii.islower, b.islower())
+            check(curses.ascii.isspace, b.isspace())
+            check(curses.ascii.isupper, b.isupper())
+
+            check(curses.ascii.isascii, i < 128)
+            check(curses.ascii.ismeta, i >= 128)
+            check(curses.ascii.isctrl, i < 32)
+            check(curses.ascii.iscntrl, i < 32 or i == 127)
+            check(curses.ascii.isblank, c in ' \t')
+            check(curses.ascii.isgraph, 32 < i <= 126)
+            check(curses.ascii.isprint, 32 <= i <= 126)
+            check(curses.ascii.ispunct, c in string.punctuation)
+            check(curses.ascii.isxdigit, c in string.hexdigits)
+
+    def test_ascii(self):
+        ascii = curses.ascii.ascii
+        self.assertEqual(ascii('\xc1'), 'A')
+        self.assertEqual(ascii('A'), 'A')
+        self.assertEqual(ascii(ord('\xc1')), ord('A'))
+
+    def test_ctrl(self):
+        ctrl = curses.ascii.ctrl
+        self.assertEqual(ctrl('J'), '\n')
+        self.assertEqual(ctrl('\n'), '\n')
+        self.assertEqual(ctrl('@'), '\0')
+        self.assertEqual(ctrl(ord('J')), ord('\n'))
+
+    def test_alt(self):
+        alt = curses.ascii.alt
+        self.assertEqual(alt('\n'), '\x8a')
+        self.assertEqual(alt('A'), '\xc1')
+        self.assertEqual(alt(ord('A')), 0xc1)
+
     def test_unctrl(self):
         unctrl = curses.ascii.unctrl
         self.assertEqual(unctrl('a'), 'a')
@@ -408,9 +458,13 @@ class TestAscii(unittest.TestCase):
         self.assertEqual(unctrl('\x7f'), '^?')
         self.assertEqual(unctrl('\n'), '^J')
         self.assertEqual(unctrl('\0'), '^@')
+        self.assertEqual(unctrl(ord('A')), 'A')
+        self.assertEqual(unctrl(ord('\n')), '^J')
         # Meta-bit characters
         self.assertEqual(unctrl('\x8a'), '!^J')
         self.assertEqual(unctrl('\xc1'), '!A')
+        self.assertEqual(unctrl(ord('\x8a')), '!^J')
+        self.assertEqual(unctrl(ord('\xc1')), '!A')
 
 
 if __name__ == '__main__':
diff --git a/Lib/test/test_decimal.py b/Lib/test/test_decimal.py
index c0d21b1..cde5d78 100644
--- a/Lib/test/test_decimal.py
+++ b/Lib/test/test_decimal.py
@@ -2491,7 +2491,8 @@ class PythonAPItests(unittest.TestCase):
         Decimal = self.decimal.Decimal
 
         class MyDecimal(Decimal):
-            pass
+            def __init__(self, _):
+                self.x = 'y'
 
         self.assertTrue(issubclass(MyDecimal, Decimal))
 
@@ -2499,6 +2500,8 @@ class PythonAPItests(unittest.TestCase):
         self.assertEqual(type(r), MyDecimal)
         self.assertEqual(str(r),
                 '0.1000000000000000055511151231257827021181583404541015625')
+        self.assertEqual(r.x, 'y')
+
         bigint = 12345678901234567890123456789
         self.assertEqual(MyDecimal.from_float(bigint), MyDecimal(bigint))
         self.assertTrue(MyDecimal.from_float(float('nan')).is_qnan())
diff --git a/Lib/test/test_doctest.py b/Lib/test/test_doctest.py
index 29426a3..33163b9 100644
--- a/Lib/test/test_doctest.py
+++ b/Lib/test/test_doctest.py
@@ -2719,12 +2719,6 @@ output into something we can doctest against:
     >>> def normalize(s):
     ...     return '\n'.join(s.decode().splitlines())
 
-Note: we also pass TERM='' to all the assert_python calls to avoid a bug
-in the readline library that is triggered in these tests because we are
-running them in a new python process.  See:
-
-  http://lists.gnu.org/archive/html/bug-readline/2013-06/msg00000.html
-
 With those preliminaries out of the way, we'll start with a file with two
 simple tests and no errors.  We'll run both the unadorned doctest command, and
 the verbose version, and then check the output:
@@ -2741,9 +2735,9 @@ the verbose version, and then check the output:
     ...         _ = f.write('\n')
     ...         _ = f.write('And that is it.\n')
     ...     rc1, out1, err1 = script_helper.assert_python_ok(
-    ...             '-m', 'doctest', fn, TERM='')
+    ...             '-m', 'doctest', fn)
     ...     rc2, out2, err2 = script_helper.assert_python_ok(
-    ...             '-m', 'doctest', '-v', fn, TERM='')
+    ...             '-m', 'doctest', '-v', fn)
 
 With no arguments and passing tests, we should get no output:
 
@@ -2806,17 +2800,17 @@ text files).
     ...         _ = f.write('   \"\"\"\n')
     ...     import shutil
     ...     rc1, out1, err1 = script_helper.assert_python_failure(
-    ...             '-m', 'doctest', fn, fn2, TERM='')
+    ...             '-m', 'doctest', fn, fn2)
     ...     rc2, out2, err2 = script_helper.assert_python_ok(
-    ...             '-m', 'doctest', '-o', 'ELLIPSIS', fn, TERM='')
+    ...             '-m', 'doctest', '-o', 'ELLIPSIS', fn)
     ...     rc3, out3, err3 = script_helper.assert_python_ok(
     ...             '-m', 'doctest', '-o', 'ELLIPSIS',
-    ...             '-o', 'NORMALIZE_WHITESPACE', fn, fn2, TERM='')
+    ...             '-o', 'NORMALIZE_WHITESPACE', fn, fn2)
     ...     rc4, out4, err4 = script_helper.assert_python_failure(
-    ...             '-m', 'doctest', '-f', fn, fn2, TERM='')
+    ...             '-m', 'doctest', '-f', fn, fn2)
     ...     rc5, out5, err5 = script_helper.assert_python_ok(
     ...             '-m', 'doctest', '-v', '-o', 'ELLIPSIS',
-    ...             '-o', 'NORMALIZE_WHITESPACE', fn, fn2, TERM='')
+    ...             '-o', 'NORMALIZE_WHITESPACE', fn, fn2)
 
 Our first test run will show the errors from the first file (doctest stops if a
 file has errors).  Note that doctest test-run error output appears on stdout,
@@ -2922,7 +2916,7 @@ We should also check some typical error cases.
 Invalid file name:
 
     >>> rc, out, err = script_helper.assert_python_failure(
-    ...         '-m', 'doctest', 'nosuchfile', TERM='')
+    ...         '-m', 'doctest', 'nosuchfile')
     >>> rc, out
     (1, b'')
     >>> print(normalize(err))                    # doctest: +ELLIPSIS
@@ -2933,7 +2927,7 @@ Invalid file name:
 Invalid doctest option:
 
     >>> rc, out, err = script_helper.assert_python_failure(
-    ...         '-m', 'doctest', '-o', 'nosuchoption', TERM='')
+    ...         '-m', 'doctest', '-o', 'nosuchoption')
     >>> rc, out
     (2, b'')
     >>> print(normalize(err))                    # doctest: +ELLIPSIS
diff --git a/Lib/test/test_extcall.py b/Lib/test/test_extcall.py
index d526b5f..5eea379 100644
--- a/Lib/test/test_extcall.py
+++ b/Lib/test/test_extcall.py
@@ -57,6 +57,10 @@ Here we add keyword arguments
     Traceback (most recent call last):
         ...
     TypeError: f() got multiple values for keyword argument 'a'
+    >>> f(1, 2, a=3, **{'a': 4}, **{'a': 5})
+    Traceback (most recent call last):
+        ...
+    TypeError: f() got multiple values for keyword argument 'a'
     >>> f(1, 2, 3, *[4, 5], **{'a':6, 'b':7})
     (1, 2, 3, 4, 5) {'a': 6, 'b': 7}
     >>> f(1, 2, 3, x=4, y=5, *(6, 7), **{'a':8, 'b': 9})
diff --git a/Lib/test/test_functools.py b/Lib/test/test_functools.py
index 9abe984..ab51a35 100644
--- a/Lib/test/test_functools.py
+++ b/Lib/test/test_functools.py
@@ -217,6 +217,33 @@ class TestPartialC(TestPartial, unittest.TestCase):
                       ['{}({!r}, {}, {})'.format(name, capture, args_repr, kwargs_repr)
                        for kwargs_repr in kwargs_reprs])
 
+    def test_recursive_repr(self):
+        if self.partial is c_functools.partial:
+            name = 'functools.partial'
+        else:
+            name = self.partial.__name__
+
+        f = self.partial(capture)
+        f.__setstate__((f, (), {}, {}))
+        try:
+            self.assertEqual(repr(f), '%s(%s(...))' % (name, name))
+        finally:
+            f.__setstate__((capture, (), {}, {}))
+
+        f = self.partial(capture)
+        f.__setstate__((capture, (f,), {}, {}))
+        try:
+            self.assertEqual(repr(f), '%s(%r, %s(...))' % (name, capture, name))
+        finally:
+            f.__setstate__((capture, (), {}, {}))
+
+        f = self.partial(capture)
+        f.__setstate__((capture, (), {'a': f}, {}))
+        try:
+            self.assertEqual(repr(f), '%s(%r, a=%s(...))' % (name, capture, name))
+        finally:
+            f.__setstate__((capture, (), {}, {}))
+
     def test_pickle(self):
         f = self.partial(signature, ['asdf'], bar=[True])
         f.attr = []
@@ -297,6 +324,40 @@ class TestPartialC(TestPartial, unittest.TestCase):
         self.assertEqual(r, ((1, 2), {}))
         self.assertIs(type(r[0]), tuple)
 
+    def test_recursive_pickle(self):
+        f = self.partial(capture)
+        f.__setstate__((f, (), {}, {}))
+        try:
+            for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+                with self.assertRaises(RecursionError):
+                    pickle.dumps(f, proto)
+        finally:
+            f.__setstate__((capture, (), {}, {}))
+
+        f = self.partial(capture)
+        f.__setstate__((capture, (f,), {}, {}))
+        try:
+            for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+                f_copy = pickle.loads(pickle.dumps(f, proto))
+                try:
+                    self.assertIs(f_copy.args[0], f_copy)
+                finally:
+                    f_copy.__setstate__((capture, (), {}, {}))
+        finally:
+            f.__setstate__((capture, (), {}, {}))
+
+        f = self.partial(capture)
+        f.__setstate__((capture, (), {'a': f}, {}))
+        try:
+            for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+                f_copy = pickle.loads(pickle.dumps(f, proto))
+                try:
+                    self.assertIs(f_copy.keywords['a'], f_copy)
+                finally:
+                    f_copy.__setstate__((capture, (), {}, {}))
+        finally:
+            f.__setstate__((capture, (), {}, {}))
+
     # Issue 6083: Reference counting bug
     def test_setstate_refcount(self):
         class BadSequence:
diff --git a/Lib/test/test_importlib/test_lazy.py b/Lib/test/test_importlib/test_lazy.py
index 774b7a4..cc383c2 100644
--- a/Lib/test/test_importlib/test_lazy.py
+++ b/Lib/test/test_importlib/test_lazy.py
@@ -1,6 +1,8 @@
 import importlib
 from importlib import abc
 from importlib import util
+import sys
+import types
 import unittest
 
 from . import util as test_util
@@ -122,12 +124,20 @@ class LazyLoaderTests(unittest.TestCase):
         self.assertFalse(hasattr(module, '__name__'))
 
     def test_module_substitution_error(self):
-        source_code = 'import sys; sys.modules[__name__] = 42'
-        module = self.new_module(source_code)
         with test_util.uncache(TestingImporter.module_name):
-            with self.assertRaises(ValueError):
+            fresh_module = types.ModuleType(TestingImporter.module_name)
+            sys.modules[TestingImporter.module_name] = fresh_module
+            module = self.new_module()
+            with self.assertRaisesRegex(ValueError, "substituted"):
                 module.__name__
 
+    def test_module_already_in_sys(self):
+        with test_util.uncache(TestingImporter.module_name):
+            module = self.new_module()
+            sys.modules[TestingImporter.module_name] = module
+            # Force the load; just care that no exception is raised.
+            module.__name__
+
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/Lib/test/test_parser.py b/Lib/test/test_parser.py
index 3d301b4..ab6577f 100644
--- a/Lib/test/test_parser.py
+++ b/Lib/test/test_parser.py
@@ -627,6 +627,22 @@ class CompileTestCase(unittest.TestCase):
         code2 = parser.compilest(st)
         self.assertEqual(eval(code2), -3)
 
+    def test_compile_filename(self):
+        st = parser.expr('a + 5')
+        code = parser.compilest(st)
+        self.assertEqual(code.co_filename, '<syntax-tree>')
+        code = st.compile()
+        self.assertEqual(code.co_filename, '<syntax-tree>')
+        for filename in ('file.py', b'file.py',
+                         bytearray(b'file.py'), memoryview(b'file.py')):
+            code = parser.compilest(st, filename)
+            self.assertEqual(code.co_filename, 'file.py')
+            code = st.compile(filename)
+            self.assertEqual(code.co_filename, 'file.py')
+        self.assertRaises(TypeError, parser.compilest, st, list(b'file.py'))
+        self.assertRaises(TypeError, st.compile, list(b'file.py'))
+
+
 class ParserStackLimitTestCase(unittest.TestCase):
     """try to push the parser to/over its limits.
     see http://bugs.python.org/issue1881 for a discussion
diff --git a/Lib/test/test_pydoc.py b/Lib/test/test_pydoc.py
index 59aa715..aee979b 100644
--- a/Lib/test/test_pydoc.py
+++ b/Lib/test/test_pydoc.py
@@ -356,7 +356,7 @@ def get_pydoc_html(module):
 def get_pydoc_link(module):
     "Returns a documentation web link of a module"
     dirname = os.path.dirname
-    basedir = os.path.join(dirname(dirname(__file__)))
+    basedir = dirname(dirname(__file__))
     doc = pydoc.TextDoc()
     loc = doc.getdocloc(module, basedir=basedir)
     return loc
diff --git a/Lib/test/test_readline.py b/Lib/test/test_readline.py
index 35330ab..8c2ad85 100644
--- a/Lib/test/test_readline.py
+++ b/Lib/test/test_readline.py
@@ -1,15 +1,25 @@
 """
 Very minimal unittests for parts of the readline module.
 """
+from contextlib import ExitStack
+from errno import EIO
 import os
+import selectors
+import subprocess
+import sys
 import tempfile
 import unittest
-from test.support import import_module, unlink
+from test.support import import_module, unlink, TESTFN
 from test.support.script_helper import assert_python_ok
 
 # Skip tests if there is no readline module
 readline = import_module('readline')
 
+is_editline = readline.__doc__ and "libedit" in readline.__doc__
+
+@unittest.skipUnless(hasattr(readline, "clear_history"),
+                     "The history update test cannot be run because the "
+                     "clear_history method is not available.")
 class TestHistoryManipulation (unittest.TestCase):
     """
     These tests were added to check that the libedit emulation on OSX and the
@@ -17,9 +27,6 @@ class TestHistoryManipulation (unittest.TestCase):
     why the tests cover only a small subset of the interface.
     """
 
-    @unittest.skipUnless(hasattr(readline, "clear_history"),
-                         "The history update test cannot be run because the "
-                         "clear_history method is not available.")
     def testHistoryUpdates(self):
         readline.clear_history()
 
@@ -82,11 +89,29 @@ class TestHistoryManipulation (unittest.TestCase):
         # write_history_file can create the target
         readline.write_history_file(hfilename)
 
+    def test_nonascii_history(self):
+        readline.clear_history()
+        try:
+            readline.add_history("entrée 1")
+        except UnicodeEncodeError as err:
+            self.skipTest("Locale cannot encode test data: " + format(err))
+        readline.add_history("entrée 2")
+        readline.replace_history_item(1, "entrée 22")
+        readline.write_history_file(TESTFN)
+        self.addCleanup(os.remove, TESTFN)
+        readline.clear_history()
+        readline.read_history_file(TESTFN)
+        if is_editline:
+            # An add_history() call seems to be required for get_history_
+            # item() to register items from the file
+            readline.add_history("dummy")
+        self.assertEqual(readline.get_history_item(1), "entrée 1")
+        self.assertEqual(readline.get_history_item(2), "entrée 22")
+
 
 class TestReadline(unittest.TestCase):
 
-    @unittest.skipIf(readline._READLINE_VERSION < 0x0600
-                     and "libedit" not in readline.__doc__,
+    @unittest.skipIf(readline._READLINE_VERSION < 0x0600 and not is_editline,
                      "not supported in this library version")
     def test_init(self):
         # Issue #19884: Ensure that the ANSI sequence "\033[1034h" is not
@@ -96,6 +121,130 @@ class TestReadline(unittest.TestCase):
                                               TERM='xterm-256color')
         self.assertEqual(stdout, b'')
 
+    def test_nonascii(self):
+        try:
+            readline.add_history("\xEB\xEF")
+        except UnicodeEncodeError as err:
+            self.skipTest("Locale cannot encode test data: " + format(err))
+
+        script = r"""import readline
+
+is_editline = readline.__doc__ and "libedit" in readline.__doc__
+inserted = "[\xEFnserted]"
+macro = "|t\xEB[after]"
+set_pre_input_hook = getattr(readline, "set_pre_input_hook", None)
+if is_editline or not set_pre_input_hook:
+    # The insert_line() call via pre_input_hook() does nothing with Editline,
+    # so include the extra text that would have been inserted here
+    macro = inserted + macro
+
+if is_editline:
+    readline.parse_and_bind(r'bind ^B ed-prev-char')
+    readline.parse_and_bind(r'bind "\t" rl_complete')
+    readline.parse_and_bind(r'bind -s ^A "{}"'.format(macro))
+else:
+    readline.parse_and_bind(r'Control-b: backward-char')
+    readline.parse_and_bind(r'"\t": complete')
+    readline.parse_and_bind(r'set disable-completion off')
+    readline.parse_and_bind(r'set show-all-if-ambiguous off')
+    readline.parse_and_bind(r'set show-all-if-unmodified off')
+    readline.parse_and_bind(r'Control-a: "{}"'.format(macro))
+
+def pre_input_hook():
+    readline.insert_text(inserted)
+    readline.redisplay()
+if set_pre_input_hook:
+    set_pre_input_hook(pre_input_hook)
+
+def completer(text, state):
+    if text == "t\xEB":
+        if state == 0:
+            print("text", ascii(text))
+            print("line", ascii(readline.get_line_buffer()))
+            print("indexes", readline.get_begidx(), readline.get_endidx())
+            return "t\xEBnt"
+        if state == 1:
+            return "t\xEBxt"
+    if text == "t\xEBx" and state == 0:
+        return "t\xEBxt"
+    return None
+readline.set_completer(completer)
+
+def display(substitution, matches, longest_match_length):
+    print("substitution", ascii(substitution))
+    print("matches", ascii(matches))
+readline.set_completion_display_matches_hook(display)
+
+print("result", ascii(input()))
+print("history", ascii(readline.get_history_item(1)))
+"""
+
+        input = b"\x01"  # Ctrl-A, expands to "|t\xEB[after]"
+        input += b"\x02" * len("[after]")  # Move cursor back
+        input += b"\t\t"  # Display possible completions
+        input += b"x\t"  # Complete "t\xEBx" -> "t\xEBxt"
+        input += b"\r"
+        output = run_pty(script, input)
+        self.assertIn(b"text 't\\xeb'\r\n", output)
+        self.assertIn(b"line '[\\xefnserted]|t\\xeb[after]'\r\n", output)
+        self.assertIn(b"indexes 11 13\r\n", output)
+        if not is_editline and hasattr(readline, "set_pre_input_hook"):
+            self.assertIn(b"substitution 't\\xeb'\r\n", output)
+            self.assertIn(b"matches ['t\\xebnt', 't\\xebxt']\r\n", output)
+        expected = br"'[\xefnserted]|t\xebxt[after]'"
+        self.assertIn(b"result " + expected + b"\r\n", output)
+        self.assertIn(b"history " + expected + b"\r\n", output)
+
+
+def run_pty(script, input=b"dummy input\r"):
+    pty = import_module('pty')
+    output = bytearray()
+    [master, slave] = pty.openpty()
+    args = (sys.executable, '-c', script)
+    proc = subprocess.Popen(args, stdin=slave, stdout=slave, stderr=slave)
+    os.close(slave)
+    with ExitStack() as cleanup:
+        cleanup.enter_context(proc)
+        def terminate(proc):
+            try:
+                proc.terminate()
+            except ProcessLookupError:
+                # Workaround for Open/Net BSD bug (Issue 16762)
+                pass
+        cleanup.callback(terminate, proc)
+        cleanup.callback(os.close, master)
+        # Avoid using DefaultSelector and PollSelector. Kqueue() does not
+        # work with pseudo-terminals on OS X < 10.9 (Issue 20365) and Open
+        # BSD (Issue 20667). Poll() does not work with OS X 10.6 or 10.4
+        # either (Issue 20472). Hopefully the file descriptor is low enough
+        # to use with select().
+        sel = cleanup.enter_context(selectors.SelectSelector())
+        sel.register(master, selectors.EVENT_READ | selectors.EVENT_WRITE)
+        os.set_blocking(master, False)
+        while True:
+            for [_, events] in sel.select():
+                if events & selectors.EVENT_READ:
+                    try:
+                        chunk = os.read(master, 0x10000)
+                    except OSError as err:
+                        # Linux raises EIO when slave is closed (Issue 5380)
+                        if err.errno != EIO:
+                            raise
+                        chunk = b""
+                    if not chunk:
+                        return output
+                    output.extend(chunk)
+                if events & selectors.EVENT_WRITE:
+                    try:
+                        input = input[os.write(master, input):]
+                    except OSError as err:
+                        # Apparently EIO means the slave was closed
+                        if err.errno != EIO:
+                            raise
+                        input = b""  # Stop writing
+                    if not input:
+                        sel.modify(master, selectors.EVENT_READ)
+
 
 if __name__ == "__main__":
     unittest.main()
diff --git a/Lib/test/test_symtable.py b/Lib/test/test_symtable.py
index e5e7b83..c5d7fac 100644
--- a/Lib/test/test_symtable.py
+++ b/Lib/test/test_symtable.py
@@ -157,6 +157,12 @@ class SymtableTest(unittest.TestCase):
                 self.fail("no SyntaxError for %r" % (brokencode,))
         checkfilename("def f(x): foo)(")  # parse-time
         checkfilename("def f(x): global x")  # symtable-build-time
+        symtable.symtable("pass", b"spam", "exec")
+        with self.assertRaises(TypeError):
+            symtable.symtable("pass", bytearray(b"spam"), "exec")
+        symtable.symtable("pass", memoryview(b"spam"), "exec")
+        with self.assertRaises(TypeError):
+            symtable.symtable("pass", list(b"spam"), "exec")
 
     def test_eval(self):
         symbols = symtable.symtable("42", "?", "eval")
diff --git a/Lib/test/test_unpack_ex.py b/Lib/test/test_unpack_ex.py
index d27eef0..74346b4 100644
--- a/Lib/test/test_unpack_ex.py
+++ b/Lib/test/test_unpack_ex.py
@@ -248,6 +248,11 @@ Overridden parameters
       ...
     TypeError: f() got multiple values for keyword argument 'x'
 
+    >>> f(x=5, **{'x': 3}, **{'x': 2})
+    Traceback (most recent call last):
+      ...
+    TypeError: f() got multiple values for keyword argument 'x'
+
     >>> f(**{1: 3}, **{1: 5})
     Traceback (most recent call last):
       ...
diff --git a/Lib/test/test_xml_etree.py b/Lib/test/test_xml_etree.py
index 44e3142..bc1dd14 100644
--- a/Lib/test/test_xml_etree.py
+++ b/Lib/test/test_xml_etree.py
@@ -18,7 +18,7 @@ import weakref
 
 from itertools import product
 from test import support
-from test.support import TESTFN, findfile, import_fresh_module, gc_collect
+from test.support import TESTFN, findfile, import_fresh_module, gc_collect, swap_attr
 
 # pyET is the pure-Python implementation.
 #
@@ -1860,6 +1860,12 @@ class BadElementTest(ElementTestCase, unittest.TestCase):
         e.extend([ET.Element('bar')])
         self.assertRaises(ValueError, e.remove, X('baz'))
 
+    def test_recursive_repr(self):
+        # Issue #25455
+        e = ET.Element('foo')
+        with swap_attr(e, 'tag', e):
+            with self.assertRaises(RuntimeError):
+                repr(e)  # Should not crash
 
 class MutatingElementPath(str):
     def __new__(cls, elem, *args):
diff --git a/Lib/test/test_zipimport.py b/Lib/test/test_zipimport.py
index 0da5906..8e5e12d 100644
--- a/Lib/test/test_zipimport.py
+++ b/Lib/test/test_zipimport.py
@@ -600,6 +600,19 @@ class UncompressedZipImportTestCase(ImportHooksBaseTestCase):
         finally:
             os.remove(filename)
 
+    def testBytesPath(self):
+        filename = support.TESTFN + ".zip"
+        self.addCleanup(support.unlink, filename)
+        with ZipFile(filename, "w") as z:
+            zinfo = ZipInfo(TESTMOD + ".py", time.localtime(NOW))
+            zinfo.compress_type = self.compression
+            z.writestr(zinfo, test_src)
+
+        zipimport.zipimporter(filename)
+        zipimport.zipimporter(os.fsencode(filename))
+        zipimport.zipimporter(bytearray(os.fsencode(filename)))
+        zipimport.zipimporter(memoryview(os.fsencode(filename)))
+
 
 @support.requires_zlib
 class CompressedZipImportTestCase(UncompressedZipImportTestCase):
@@ -620,6 +633,8 @@ class BadFileZipImportTestCase(unittest.TestCase):
     def testBadArgs(self):
         self.assertRaises(TypeError, zipimport.zipimporter, None)
         self.assertRaises(TypeError, zipimport.zipimporter, TESTMOD, kwd=None)
+        self.assertRaises(TypeError, zipimport.zipimporter,
+                          list(os.fsencode(TESTMOD)))
 
     def testFilenameTooLong(self):
         self.assertZipFailure('A' * 33000)