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📁 ..
📄 Sine-1000Hz-300ms.aif(60.25 KB)
📄 __init__.py(47 B)
📄 __main__.py(41 B)
📁 __pycache__
📄 _test_multiprocessing.py(183.09 KB)
📄 allsans.pem(9.87 KB)
📄 ann_module.py(1.08 KB)
📄 ann_module2.py(519 B)
📄 ann_module3.py(448 B)
📁 audiodata
📄 audiotest.au(27.48 KB)
📄 audiotests.py(12.46 KB)
📄 audit-tests.py(8.9 KB)
📄 autotest.py(209 B)
📄 bad_coding.py(24 B)
📄 bad_coding2.py(30 B)
📄 bad_getattr.py(61 B)
📄 bad_getattr2.py(77 B)
📄 bad_getattr3.py(139 B)
📄 badcert.pem(1.88 KB)
📄 badkey.pem(2.11 KB)
📄 badsyntax_3131.py(32 B)
📄 badsyntax_future10.py(95 B)
📄 badsyntax_future3.py(172 B)
📄 badsyntax_future4.py(153 B)
📄 badsyntax_future5.py(184 B)
📄 badsyntax_future6.py(161 B)
📄 badsyntax_future7.py(196 B)
📄 badsyntax_future8.py(122 B)
📄 badsyntax_future9.py(142 B)
📄 badsyntax_pep3120.py(14 B)
📄 bisect_cmd.py(4.85 KB)
📄 bytecode_helper.py(1.56 KB)
📁 capath
📄 cfgparser.1(67 B)
📄 cfgparser.2(19.02 KB)
📄 cfgparser.3(1.55 KB)
📁 cjkencodings
📄 clinic.test(94.65 KB)
📄 cmath_testcases.txt(141.05 KB)
📄 coding20731.py(22 B)
📄 curses_tests.py(1.22 KB)
📁 data
📄 dataclass_module_1.py(837 B)
📄 dataclass_module_1_str.py(835 B)
📄 dataclass_module_2.py(756 B)
📄 dataclass_module_2_str.py(754 B)
📄 dataclass_textanno.py(126 B)
📄 datetimetester.py(239.84 KB)
📁 decimaltestdata
📄 dis_module.py(76 B)
📄 doctest_aliases.py(240 B)
📄 double_const.py(1.18 KB)
📁 dtracedata
📁 eintrdata
📄 empty.vbs(70 B)
📁 encoded_modules
📄 exception_hierarchy.txt(1.78 KB)
📄 ffdh3072.pem(2.16 KB)
📄 final_a.py(411 B)
📄 final_b.py(411 B)
📄 floating_points.txt(15.92 KB)
📄 fork_wait.py(2.53 KB)
📄 formatfloat_testcases.txt(7.45 KB)
📄 future_test1.py(229 B)
📄 future_test2.py(149 B)
📄 gdb_sample.py(153 B)
📄 good_getattr.py(198 B)
📄 idnsans.pem(9.71 KB)
📄 ieee754.txt(3.21 KB)
📁 imghdrdata
📄 imp_dummy.py(63 B)
📄 inspect_fodder.py(1.88 KB)
📄 inspect_fodder2.py(2.06 KB)
📄 keycert.passwd.pem(4.13 KB)
📄 keycert.pem(3.96 KB)
📄 keycert2.pem(3.98 KB)
📄 keycert3.pem(9.23 KB)
📄 keycert4.pem(9.24 KB)
📄 keycertecc.pem(5.5 KB)
📁 libregrtest
📄 list_tests.py(16.54 KB)
📄 lock_tests.py(28.26 KB)
📄 mailcap.txt(1.24 KB)
📄 make_ssl_certs.py(9.25 KB)
📄 mapping_tests.py(21.75 KB)
📄 math_testcases.txt(23.19 KB)
📄 memory_watchdog.py(859 B)
📄 mime.types(47.37 KB)
📄 mock_socket.py(3.53 KB)
📄 mod_generics_cache.py(1.13 KB)
📄 mp_fork_bomb.py(448 B)
📄 mp_preload.py(351 B)
📄 multibytecodec_support.py(14.17 KB)
📄 nokia.pem(1.88 KB)
📄 nosan.pem(7.54 KB)
📄 nullbytecert.pem(5.31 KB)
📄 nullcert.pem(0 B)
📄 outstanding_bugs.py(370 B)
📄 pickletester.py(135.99 KB)
📄 profilee.py(2.97 KB)
📄 pstats.pck(65.05 KB)
📄 pycacert.pem(5.53 KB)
📄 pycakey.pem(2.43 KB)
📄 pyclbr_input.py(648 B)
📄 pydoc_mod.py(713 B)
📄 pydocfodder.py(6.18 KB)
📄 pythoninfo.py(20.34 KB)
📄 randv2_32.pck(7.34 KB)
📄 randv2_64.pck(7.19 KB)
📄 randv3.pck(7.82 KB)
📄 re_tests.py(25.93 KB)
📄 recursion.tar(516 B)
📄 regrtest.py(1.34 KB)
📄 relimport.py(27 B)
📄 reperf.py(538 B)
📄 revocation.crl(800 B)
📄 sample_doctest.py(1.02 KB)
📄 sample_doctest_no_docstrings.py(227 B)
📄 sample_doctest_no_doctests.py(269 B)
📄 secp384r1.pem(256 B)
📄 selfsigned_pythontestdotnet.pem(2.08 KB)
📄 seq_tests.py(14.18 KB)
📄 sgml_input.html(8.1 KB)
📄 signalinterproctester.py(2.7 KB)
📁 sndhdrdata
📄 sortperf.py(4.69 KB)
📄 ssl_cert.pem(1.53 KB)
📄 ssl_key.passwd.pem(2.59 KB)
📄 ssl_key.pem(2.43 KB)
📄 ssl_servers.py(7.04 KB)
📄 ssltests.py(1.03 KB)
📄 string_tests.py(64.65 KB)
📁 subprocessdata
📁 support
📄 talos-2019-0758.pem(1.3 KB)
📄 test___all__.py(4.12 KB)
📄 test___future__.py(2.36 KB)
📄 test__locale.py(7.83 KB)
📄 test__opcode.py(3.03 KB)
📄 test__osx_support.py(13.66 KB)
📄 test__xxsubinterpreters.py(68.7 KB)
📄 test_abc.py(18 KB)
📄 test_abstract_numbers.py(1.49 KB)
📄 test_aifc.py(17.68 KB)
📄 test_argparse.py(172.67 KB)
📄 test_array.py(52.57 KB)
📄 test_asdl_parser.py(4.15 KB)
📄 test_ast.py(88.53 KB)
📄 test_asyncgen.py(31.44 KB)
📄 test_asynchat.py(9.28 KB)
📁 test_asyncio
📄 test_asyncore.py(25.81 KB)
📄 test_atexit.py(5.81 KB)
📄 test_audioop.py(28.24 KB)
📄 test_audit.py(4.05 KB)
📄 test_augassign.py(7.68 KB)
📄 test_base64.py(30.17 KB)
📄 test_baseexception.py(6.86 KB)
📄 test_bdb.py(41.55 KB)
📄 test_bigaddrspace.py(2.92 KB)
📄 test_bigmem.py(44.88 KB)
📄 test_binascii.py(18 KB)
📄 test_binhex.py(1.79 KB)
📄 test_binop.py(14.14 KB)
📄 test_bisect.py(13.63 KB)
📄 test_bool.py(12.48 KB)
📄 test_buffer.py(160.04 KB)
📄 test_bufio.py(2.54 KB)
📄 test_builtin.py(78.38 KB)
📄 test_bytes.py(72.23 KB)
📄 test_bz2.py(36.76 KB)
📄 test_c_locale_coercion.py(18.82 KB)
📄 test_calendar.py(48.71 KB)
📄 test_call.py(20.88 KB)
📄 test_capi.py(30.46 KB)
📄 test_cgi.py(22.15 KB)
📄 test_cgitb.py(2.5 KB)
📄 test_charmapcodec.py(1.68 KB)
📄 test_class.py(17.42 KB)
📄 test_clinic.py(21.71 KB)
📄 test_cmath.py(24.07 KB)
📄 test_cmd.py(6.1 KB)
📄 test_cmd_line.py(33.72 KB)
📄 test_cmd_line_script.py(31.46 KB)
📄 test_code.py(13.66 KB)
📄 test_code_module.py(5.51 KB)
📄 test_codeccallbacks.py(40.97 KB)
📄 test_codecencodings_cn.py(3.86 KB)
📄 test_codecencodings_hk.py(701 B)
📄 test_codecencodings_iso2022.py(1.36 KB)
📄 test_codecencodings_jp.py(4.79 KB)
📄 test_codecencodings_kr.py(2.96 KB)
📄 test_codecencodings_tw.py(681 B)
📄 test_codecmaps_cn.py(746 B)
📄 test_codecmaps_hk.py(386 B)
📄 test_codecmaps_jp.py(1.7 KB)
📄 test_codecmaps_kr.py(1.16 KB)
📄 test_codecmaps_tw.py(705 B)
📄 test_codecs.py(129.38 KB)
📄 test_codeop.py(7.97 KB)
📄 test_collections.py(83.93 KB)
📄 test_colorsys.py(3.83 KB)
📄 test_compare.py(3.82 KB)
📄 test_compile.py(36.48 KB)
📄 test_compileall.py(26.7 KB)
📄 test_complex.py(30.24 KB)
📄 test_concurrent_futures.py(44.93 KB)
📄 test_configparser.py(84.93 KB)
📄 test_contains.py(3.49 KB)
📄 test_context.py(29.33 KB)
📄 test_contextlib.py(32.54 KB)
📄 test_contextlib_async.py(14.82 KB)
📄 test_copy.py(25.81 KB)
📄 test_copyreg.py(4.39 KB)
📄 test_coroutines.py(62.52 KB)
📄 test_cprofile.py(6.33 KB)
📄 test_crashers.py(1.17 KB)
📄 test_crypt.py(3.97 KB)
📄 test_csv.py(47.77 KB)
📄 test_ctypes.py(184 B)
📄 test_curses.py(45.47 KB)
📄 test_dataclasses.py(108.8 KB)
📄 test_datetime.py(2.15 KB)
📄 test_dbm.py(6.45 KB)
📄 test_dbm_dumb.py(10.61 KB)
📄 test_dbm_gnu.py(6.22 KB)
📄 test_dbm_ndbm.py(5.05 KB)
📄 test_decimal.py(206.63 KB)
📄 test_decorators.py(9.48 KB)
📄 test_defaultdict.py(5.88 KB)
📄 test_deque.py(34.46 KB)
📄 test_descr.py(190.58 KB)
📄 test_descrtut.py(11.53 KB)
📄 test_devpoll.py(4.5 KB)
📄 test_dict.py(45 KB)
📄 test_dict_version.py(5.88 KB)
📄 test_dictcomps.py(4.42 KB)
📄 test_dictviews.py(11.68 KB)
📄 test_difflib.py(19.64 KB)
📄 test_difflib_expect.html(100.85 KB)
📄 test_dis.py(48.4 KB)
📄 test_distutils.py(375 B)
📄 test_doctest.py(98.67 KB)
📄 test_doctest.txt(300 B)
📄 test_doctest2.py(2.3 KB)
📄 test_doctest2.txt(392 B)
📄 test_doctest3.txt(82 B)
📄 test_doctest4.txt(244 B)
📄 test_docxmlrpc.py(8.67 KB)
📄 test_dtrace.py(5.23 KB)
📄 test_dummy_thread.py(9.69 KB)
📄 test_dummy_threading.py(1.7 KB)
📄 test_dynamic.py(4.29 KB)
📄 test_dynamicclassattribute.py(9.57 KB)
📄 test_eintr.py(1.32 KB)
📁 test_email
📄 test_embed.py(49.23 KB)
📄 test_ensurepip.py(9.83 KB)
📄 test_enum.py(113.68 KB)
📄 test_enumerate.py(8.46 KB)
📄 test_eof.py(1.94 KB)
📄 test_epoll.py(9.03 KB)
📄 test_errno.py(1.04 KB)
📄 test_exception_hierarchy.py(7.43 KB)
📄 test_exception_variations.py(3.86 KB)
📄 test_exceptions.py(49.81 KB)
📄 test_extcall.py(13.49 KB)
📄 test_faulthandler.py(28.13 KB)
📄 test_fcntl.py(6.21 KB)
📄 test_file.py(11.02 KB)
📄 test_file_eintr.py(10.6 KB)
📄 test_filecmp.py(8.69 KB)
📄 test_fileinput.py(37.33 KB)
📄 test_fileio.py(19.96 KB)
📄 test_finalization.py(14.66 KB)
📄 test_float.py(63.41 KB)
📄 test_flufl.py(1.32 KB)
📄 test_fnmatch.py(5.07 KB)
📄 test_fork1.py(3.67 KB)
📄 test_format.py(22.58 KB)
📄 test_fractions.py(29.83 KB)
📄 test_frame.py(5.67 KB)
📄 test_frozen.py(943 B)
📄 test_fstring.py(46.16 KB)
📄 test_ftplib.py(39.71 KB)
📄 test_funcattrs.py(13.54 KB)
📄 test_functools.py(90.59 KB)
📄 test_future.py(11.9 KB)
📄 test_future3.py(490 B)
📄 test_future4.py(222 B)
📄 test_future5.py(510 B)
📄 test_gc.py(40.49 KB)
📄 test_gdb.py(40.88 KB)
📄 test_generator_stop.py(943 B)
📄 test_generators.py(58.51 KB)
📄 test_genericclass.py(9.28 KB)
📄 test_genericpath.py(21.7 KB)
📄 test_genexps.py(7.12 KB)
📄 test_getargs2.py(50 KB)
📄 test_getopt.py(6.75 KB)
📄 test_getpass.py(6.29 KB)
📄 test_gettext.py(41.38 KB)
📄 test_glob.py(13.03 KB)
📄 test_global.py(1.31 KB)
📄 test_grammar.py(57.5 KB)
📄 test_grp.py(3.54 KB)
📄 test_gzip.py(29.9 KB)
📄 test_hash.py(11.45 KB)
📄 test_hashlib.py(39.43 KB)
📄 test_heapq.py(16.4 KB)
📄 test_hmac.py(22.24 KB)
📄 test_html.py(4.23 KB)
📄 test_htmlparser.py(33.19 KB)
📄 test_http_cookiejar.py(78.36 KB)
📄 test_http_cookies.py(18.71 KB)
📄 test_httplib.py(76.98 KB)
📄 test_httpservers.py(45.24 KB)
📄 test_idle.py(825 B)
📄 test_imaplib.py(38.95 KB)
📄 test_imghdr.py(4.66 KB)
📄 test_imp.py(17.73 KB)
📁 test_import
📁 test_importlib
📄 test_index.py(8.37 KB)
📄 test_inspect.py(151.79 KB)
📄 test_int.py(20.8 KB)
📄 test_int_literal.py(6.89 KB)
📄 test_io.py(163.94 KB)
📄 test_ioctl.py(3.2 KB)
📄 test_ipaddress.py(90.98 KB)
📄 test_isinstance.py(10.25 KB)
📄 test_iter.py(31.81 KB)
📄 test_iterlen.py(7.1 KB)
📄 test_itertools.py(101.41 KB)
📁 test_json
📄 test_keyword.py(1.23 KB)
📄 test_keywordonlyarg.py(6.85 KB)
📄 test_kqueue.py(8.76 KB)
📄 test_largefile.py(6.83 KB)
📄 test_lib2to3.py(101 B)
📄 test_linecache.py(7.79 KB)
📄 test_list.py(7.4 KB)
📄 test_listcomps.py(3.76 KB)
📄 test_lltrace.py(1012 B)
📄 test_locale.py(23.87 KB)
📄 test_logging.py(182.43 KB)
📄 test_long.py(53.21 KB)
📄 test_longexp.py(233 B)
📄 test_lzma.py(87.92 KB)
📄 test_mailbox.py(91.92 KB)
📄 test_mailcap.py(9.88 KB)
📄 test_marshal.py(20.57 KB)
📄 test_math.py(82.18 KB)
📄 test_memoryio.py(31.48 KB)
📄 test_memoryview.py(17.78 KB)
📄 test_metaclass.py(6.2 KB)
📄 test_mimetypes.py(12.14 KB)
📄 test_minidom.py(66.95 KB)
📄 test_mmap.py(29.04 KB)
📄 test_module.py(10.3 KB)
📄 test_modulefinder.py(12.2 KB)
📄 test_msilib.py(5.06 KB)
📄 test_multibytecodec.py(15.04 KB)
📄 test_multiprocessing_fork.py(477 B)
📄 test_multiprocessing_forkserver.py(392 B)
📄 test_multiprocessing_main_handling.py(11.45 KB)
📄 test_multiprocessing_spawn.py(277 B)
📄 test_named_expressions.py(16.51 KB)
📄 test_netrc.py(5.96 KB)
📄 test_nis.py(1.13 KB)
📄 test_nntplib.py(61.7 KB)
📄 test_normalization.py(3.66 KB)
📄 test_ntpath.py(35.08 KB)
📄 test_numeric_tower.py(7.18 KB)
📄 test_opcodes.py(3.61 KB)
📄 test_openpty.py(600 B)
📄 test_operator.py(23.54 KB)
📄 test_optparse.py(60.99 KB)
📄 test_ordered_dict.py(30.22 KB)
📄 test_os.py(150.53 KB)
📄 test_ossaudiodev.py(7.06 KB)
📄 test_osx_env.py(1.3 KB)
📄 test_parser.py(35.72 KB)
📄 test_pathlib.py(97.12 KB)
📄 test_pdb.py(55.36 KB)
📄 test_peepholer.py(19.41 KB)
📄 test_pickle.py(19.16 KB)
📄 test_picklebuffer.py(4.96 KB)
📄 test_pickletools.py(4.33 KB)
📄 test_pipes.py(6.59 KB)
📄 test_pkg.py(9.59 KB)
📄 test_pkgimport.py(2.67 KB)
📄 test_pkgutil.py(19.25 KB)
📄 test_platform.py(14.31 KB)
📄 test_plistlib.py(41.43 KB)
📄 test_poll.py(7.23 KB)
📄 test_popen.py(1.98 KB)
📄 test_poplib.py(16.97 KB)
📄 test_positional_only_arg.py(17.5 KB)
📄 test_posix.py(75.76 KB)
📄 test_posixpath.py(29.19 KB)
📄 test_pow.py(5.44 KB)
📄 test_pprint.py(43.85 KB)
📄 test_print.py(7.37 KB)
📄 test_profile.py(8.72 KB)
📄 test_property.py(8.77 KB)
📄 test_pstats.py(3.04 KB)
📄 test_pty.py(11.97 KB)
📄 test_pulldom.py(12.66 KB)
📄 test_pwd.py(4.17 KB)
📄 test_py_compile.py(10.78 KB)
📄 test_pyclbr.py(10 KB)
📄 test_pydoc.py(56.98 KB)
📄 test_pyexpat.py(26.54 KB)
📄 test_queue.py(20.36 KB)
📄 test_quopri.py(7.78 KB)
📄 test_raise.py(12.86 KB)
📄 test_random.py(45.59 KB)
📄 test_range.py(23.35 KB)
📄 test_re.py(106.41 KB)
📄 test_readline.py(12.95 KB)
📄 test_regrtest.py(46.36 KB)
📄 test_repl.py(3.96 KB)
📄 test_reprlib.py(15.12 KB)
📄 test_resource.py(7.02 KB)
📄 test_richcmp.py(11.91 KB)
📄 test_rlcompleter.py(6.3 KB)
📄 test_robotparser.py(10.69 KB)
📄 test_runpy.py(33.86 KB)
📄 test_sax.py(46.9 KB)
📄 test_sched.py(6.41 KB)
📄 test_scope.py(19.7 KB)
📄 test_script_helper.py(5.78 KB)
📄 test_secrets.py(4.28 KB)
📄 test_select.py(2.69 KB)
📄 test_selectors.py(17.79 KB)
📄 test_set.py(64.41 KB)
📄 test_setcomps.py(3.7 KB)
📄 test_shelve.py(6.24 KB)
📄 test_shlex.py(13.29 KB)
📄 test_shutil.py(101.55 KB)
📄 test_signal.py(46.62 KB)
📄 test_site.py(24.71 KB)
📄 test_slice.py(8.25 KB)
📄 test_smtpd.py(40.14 KB)
📄 test_smtplib.py(56.51 KB)
📄 test_smtpnet.py(2.87 KB)
📄 test_sndhdr.py(1.43 KB)
📄 test_socket.py(232.71 KB)
📄 test_socketserver.py(17.7 KB)
📄 test_sort.py(13.42 KB)
📄 test_source_encoding.py(7.89 KB)
📄 test_spwd.py(2.71 KB)
📄 test_sqlite.py(948 B)
📄 test_ssl.py(203.3 KB)
📄 test_startfile.py(1.29 KB)
📄 test_stat.py(8.3 KB)
📄 test_statistics.py(106.5 KB)
📄 test_strftime.py(7.54 KB)
📄 test_string.py(19.8 KB)
📄 test_string_literals.py(9.88 KB)
📄 test_stringprep.py(3.04 KB)
📄 test_strptime.py(34.42 KB)
📄 test_strtod.py(20.06 KB)
📄 test_struct.py(34.41 KB)
📄 test_structmembers.py(4.7 KB)
📄 test_structseq.py(3.87 KB)
📄 test_subclassinit.py(8.12 KB)
📄 test_subprocess.py(142.64 KB)
📄 test_sunau.py(6.07 KB)
📄 test_sundry.py(2.07 KB)
📄 test_super.py(9.6 KB)
📄 test_support.py(24.12 KB)
📄 test_symbol.py(2.06 KB)
📄 test_symtable.py(9.13 KB)
📄 test_syntax.py(25.75 KB)
📄 test_sys.py(55.24 KB)
📄 test_sys_setprofile.py(12.31 KB)
📄 test_sys_settrace.py(43.08 KB)
📄 test_sysconfig.py(17.01 KB)
📄 test_syslog.py(1.15 KB)
📄 test_tabnanny.py(13.44 KB)
📄 test_tarfile.py(98.31 KB)
📄 test_tcl.py(30.74 KB)
📄 test_telnetlib.py(12.7 KB)
📄 test_tempfile.py(52.57 KB)
📄 test_textwrap.py(38.84 KB)
📄 test_thread.py(8.41 KB)
📄 test_threaded_import.py(8.9 KB)
📄 test_threadedtempfile.py(1.85 KB)
📄 test_threading.py(47.52 KB)
📄 test_threading_local.py(6.09 KB)
📄 test_threadsignals.py(10.09 KB)
📄 test_time.py(38.43 KB)
📄 test_timeit.py(14.8 KB)
📄 test_timeout.py(11.19 KB)
📄 test_tix.py(756 B)
📄 test_tk.py(362 B)
📄 test_tokenize.py(63.18 KB)
📁 test_tools
📄 test_trace.py(19.89 KB)
📄 test_traceback.py(46.97 KB)
📄 test_tracemalloc.py(37.41 KB)
📄 test_ttk_guionly.py(746 B)
📄 test_ttk_textonly.py(299 B)
📄 test_tuple.py(18.85 KB)
📄 test_turtle.py(12.79 KB)
📄 test_type_comments.py(10.13 KB)
📄 test_typechecks.py(2.55 KB)
📄 test_types.py(58 KB)
📄 test_typing.py(122.05 KB)
📄 test_ucn.py(9.35 KB)
📄 test_unary.py(1.63 KB)
📄 test_unicode.py(129.94 KB)
📄 test_unicode_file.py(5.74 KB)
📄 test_unicode_file_functions.py(6.84 KB)
📄 test_unicode_identifiers.py(891 B)
📄 test_unicodedata.py(12.7 KB)
📄 test_unittest.py(286 B)
📄 test_univnewlines.py(3.83 KB)
📄 test_unpack.py(3.01 KB)
📄 test_unpack_ex.py(8.73 KB)
📄 test_urllib.py(71.24 KB)
📄 test_urllib2.py(76.95 KB)
📄 test_urllib2_localnet.py(24.24 KB)
📄 test_urllib2net.py(12.39 KB)
📄 test_urllib_response.py(1.69 KB)
📄 test_urllibnet.py(8.9 KB)
📄 test_urlparse.py(64.87 KB)
📄 test_userdict.py(7.64 KB)
📄 test_userlist.py(1.97 KB)
📄 test_userstring.py(2.4 KB)
📄 test_utf8_mode.py(9.22 KB)
📄 test_utf8source.py(1.15 KB)
📄 test_uu.py(8.02 KB)
📄 test_uuid.py(35.74 KB)
📄 test_venv.py(20.46 KB)
📄 test_wait3.py(1.16 KB)
📄 test_wait4.py(1.15 KB)
📁 test_warnings
📄 test_wave.py(6.57 KB)
📄 test_weakref.py(69.47 KB)
📄 test_weakset.py(15.03 KB)
📄 test_webbrowser.py(10.47 KB)
📄 test_winconsoleio.py(6.14 KB)
📄 test_winreg.py(21.38 KB)
📄 test_winsound.py(4.57 KB)
📄 test_with.py(25.78 KB)
📄 test_wsgiref.py(30.1 KB)
📄 test_xdrlib.py(2.17 KB)
📄 test_xml_dom_minicompat.py(4.18 KB)
📄 test_xml_etree.py(147.87 KB)
📄 test_xml_etree_c.py(8.06 KB)
📄 test_xmlrpc.py(55.96 KB)
📄 test_xmlrpc_net.py(1015 B)
📄 test_xxtestfuzz.py(670 B)
📄 test_yield_from.py(30.01 KB)
📄 test_zipapp.py(15.92 KB)
📄 test_zipfile.py(115.45 KB)
📄 test_zipfile64.py(5.8 KB)
📄 test_zipimport.py(29.28 KB)
📄 test_zipimport_support.py(10.44 KB)
📄 test_zlib.py(34.48 KB)
📄 testcodec.py(1.02 KB)
📄 testtar.tar(425 KB)
📄 tf_inherit_check.py(714 B)
📄 threaded_import_hangers.py(1.45 KB)
📄 time_hashlib.py(2.87 KB)
📄 tokenize_tests-latin1-coding-cookie-and-utf8-bom-sig.txt(443 B)
📄 tokenize_tests-no-coding-cookie-and-utf8-bom-sig-only.txt(302 B)
📄 tokenize_tests-utf8-coding-cookie-and-no-utf8-bom-sig.txt(421 B)
📄 tokenize_tests-utf8-coding-cookie-and-utf8-bom-sig.txt(326 B)
📄 tokenize_tests.txt(2.65 KB)
📁 tracedmodules
📄 win_console_handler.py(1.38 KB)
📁 xmltestdata
📄 xmltests.py(499 B)
📄 zip_cp437_header.zip(270 B)
📄 zipdir.zip(374 B)
📁 ziptestdata

Editing: test_sys.py

from test import support
from test.support.script_helper import assert_python_ok, assert_python_failure
import builtins
import codecs
import gc
import locale
import operator
import os
import struct
import subprocess
import sys
import sysconfig
import test.support
import textwrap
import unittest
import warnings

# count the number of test runs, used to create unique
# strings to intern in test_intern()
INTERN_NUMRUNS = 0

class DisplayHookTest(unittest.TestCase):

def test_original_displayhook(self):
        dh = sys.__displayhook__

with support.captured_stdout() as out:
            dh(42)

self.assertEqual(out.getvalue(), "42\n")
        self.assertEqual(builtins._, 42)

del builtins._

with support.captured_stdout() as out:
            dh(None)

self.assertEqual(out.getvalue(), "")
        self.assertTrue(not hasattr(builtins, "_"))

# sys.displayhook() requires arguments
        self.assertRaises(TypeError, dh)

stdout = sys.stdout
        try:
            del sys.stdout
            self.assertRaises(RuntimeError, dh, 42)
        finally:
            sys.stdout = stdout

def test_lost_displayhook(self):
        displayhook = sys.displayhook
        try:
            del sys.displayhook
            code = compile("42", "<string>", "single")
            self.assertRaises(RuntimeError, eval, code)
        finally:
            sys.displayhook = displayhook

def test_custom_displayhook(self):
        def baddisplayhook(obj):
            raise ValueError

with support.swap_attr(sys, 'displayhook', baddisplayhook):
            code = compile("42", "<string>", "single")
            self.assertRaises(ValueError, eval, code)

class ExceptHookTest(unittest.TestCase):

def test_original_excepthook(self):
        try:
            raise ValueError(42)
        except ValueError as exc:
            with support.captured_stderr() as err:
                sys.__excepthook__(*sys.exc_info())

self.assertTrue(err.getvalue().endswith("ValueError: 42\n"))

self.assertRaises(TypeError, sys.__excepthook__)

def test_excepthook_bytes_filename(self):
        # bpo-37467: sys.excepthook() must not crash if a filename
        # is a bytes string
        with warnings.catch_warnings():
            warnings.simplefilter('ignore', BytesWarning)

try:
                raise SyntaxError("msg", (b"bytes_filename", 123, 0, "text"))
            except SyntaxError as exc:
                with support.captured_stderr() as err:
                    sys.__excepthook__(*sys.exc_info())

err = err.getvalue()
        self.assertIn("""  File "b'bytes_filename'", line 123\n""", err)
        self.assertIn("""    text\n""", err)
        self.assertTrue(err.endswith("SyntaxError: msg\n"))

def test_excepthook(self):
        with test.support.captured_output("stderr") as stderr:
            sys.excepthook(1, '1', 1)
        self.assertTrue("TypeError: print_exception(): Exception expected for " \
                         "value, str found" in stderr.getvalue())

# FIXME: testing the code for a lost or replaced excepthook in
    # Python/pythonrun.c::PyErr_PrintEx() is tricky.

class SysModuleTest(unittest.TestCase):

def tearDown(self):
        test.support.reap_children()

def test_exit(self):
        # call with two arguments
        self.assertRaises(TypeError, sys.exit, 42, 42)

# call without argument
        with self.assertRaises(SystemExit) as cm:
            sys.exit()
        self.assertIsNone(cm.exception.code)

rc, out, err = assert_python_ok('-c', 'import sys; sys.exit()')
        self.assertEqual(rc, 0)
        self.assertEqual(out, b'')
        self.assertEqual(err, b'')

# call with integer argument
        with self.assertRaises(SystemExit) as cm:
            sys.exit(42)
        self.assertEqual(cm.exception.code, 42)

# call with tuple argument with one entry
        # entry will be unpacked
        with self.assertRaises(SystemExit) as cm:
            sys.exit((42,))
        self.assertEqual(cm.exception.code, 42)

# call with string argument
        with self.assertRaises(SystemExit) as cm:
            sys.exit("exit")
        self.assertEqual(cm.exception.code, "exit")

# call with tuple argument with two entries
        with self.assertRaises(SystemExit) as cm:
            sys.exit((17, 23))
        self.assertEqual(cm.exception.code, (17, 23))

# test that the exit machinery handles SystemExits properly
        rc, out, err = assert_python_failure('-c', 'raise SystemExit(47)')
        self.assertEqual(rc, 47)
        self.assertEqual(out, b'')
        self.assertEqual(err, b'')

def check_exit_message(code, expected, **env_vars):
            rc, out, err = assert_python_failure('-c', code, **env_vars)
            self.assertEqual(rc, 1)
            self.assertEqual(out, b'')
            self.assertTrue(err.startswith(expected),
                "%s doesn't start with %s" % (ascii(err), ascii(expected)))

# test that stderr buffer is flushed before the exit message is written
        # into stderr
        check_exit_message(
            r'import sys; sys.stderr.write("unflushed,"); sys.exit("message")',
            b"unflushed,message")

# test that the exit message is written with backslashreplace error
        # handler to stderr
        check_exit_message(
            r'import sys; sys.exit("surrogates:\uDCFF")',
            b"surrogates:\\udcff")

# test that the unicode message is encoded to the stderr encoding
        # instead of the default encoding (utf8)
        check_exit_message(
            r'import sys; sys.exit("h\xe9")',
            b"h\xe9", PYTHONIOENCODING='latin-1')

def test_getdefaultencoding(self):
        self.assertRaises(TypeError, sys.getdefaultencoding, 42)
        # can't check more than the type, as the user might have changed it
        self.assertIsInstance(sys.getdefaultencoding(), str)

# testing sys.settrace() is done in test_sys_settrace.py
    # testing sys.setprofile() is done in test_sys_setprofile.py

def test_setcheckinterval(self):
        with warnings.catch_warnings():
            warnings.simplefilter("ignore")
            self.assertRaises(TypeError, sys.setcheckinterval)
            orig = sys.getcheckinterval()
            for n in 0, 100, 120, orig: # orig last to restore starting state
                sys.setcheckinterval(n)
                self.assertEqual(sys.getcheckinterval(), n)

def test_switchinterval(self):
        self.assertRaises(TypeError, sys.setswitchinterval)
        self.assertRaises(TypeError, sys.setswitchinterval, "a")
        self.assertRaises(ValueError, sys.setswitchinterval, -1.0)
        self.assertRaises(ValueError, sys.setswitchinterval, 0.0)
        orig = sys.getswitchinterval()
        # sanity check
        self.assertTrue(orig < 0.5, orig)
        try:
            for n in 0.00001, 0.05, 3.0, orig:
                sys.setswitchinterval(n)
                self.assertAlmostEqual(sys.getswitchinterval(), n)
        finally:
            sys.setswitchinterval(orig)

def test_recursionlimit(self):
        self.assertRaises(TypeError, sys.getrecursionlimit, 42)
        oldlimit = sys.getrecursionlimit()
        self.assertRaises(TypeError, sys.setrecursionlimit)
        self.assertRaises(ValueError, sys.setrecursionlimit, -42)
        sys.setrecursionlimit(10000)
        self.assertEqual(sys.getrecursionlimit(), 10000)
        sys.setrecursionlimit(oldlimit)

def test_recursionlimit_recovery(self):
        if hasattr(sys, 'gettrace') and sys.gettrace():
            self.skipTest('fatal error if run with a trace function')

oldlimit = sys.getrecursionlimit()
        def f():
            f()
        try:
            for depth in (10, 25, 50, 75, 100, 250, 1000):
                try:
                    sys.setrecursionlimit(depth)
                except RecursionError:
                    # Issue #25274: The recursion limit is too low at the
                    # current recursion depth
                    continue

# Issue #5392: test stack overflow after hitting recursion
                # limit twice
                self.assertRaises(RecursionError, f)
                self.assertRaises(RecursionError, f)
        finally:
            sys.setrecursionlimit(oldlimit)

@test.support.cpython_only
    def test_setrecursionlimit_recursion_depth(self):
        # Issue #25274: Setting a low recursion limit must be blocked if the
        # current recursion depth is already higher than the "lower-water
        # mark". Otherwise, it may not be possible anymore to
        # reset the overflowed flag to 0.

from _testcapi import get_recursion_depth

def set_recursion_limit_at_depth(depth, limit):
            recursion_depth = get_recursion_depth()
            if recursion_depth >= depth:
                with self.assertRaises(RecursionError) as cm:
                    sys.setrecursionlimit(limit)
                self.assertRegex(str(cm.exception),
                                 "cannot set the recursion limit to [0-9]+ "
                                 "at the recursion depth [0-9]+: "
                                 "the limit is too low")
            else:
                set_recursion_limit_at_depth(depth, limit)

oldlimit = sys.getrecursionlimit()
        try:
            sys.setrecursionlimit(1000)

for limit in (10, 25, 50, 75, 100, 150, 200):
                # formula extracted from _Py_RecursionLimitLowerWaterMark()
                if limit > 200:
                    depth = limit - 50
                else:
                    depth = limit * 3 // 4
                set_recursion_limit_at_depth(depth, limit)
        finally:
            sys.setrecursionlimit(oldlimit)

def test_recursionlimit_fatalerror(self):
        # A fatal error occurs if a second recursion limit is hit when recovering
        # from a first one.
        code = textwrap.dedent("""
            import sys

def f():
                try:
                    f()
                except RecursionError:
                    f()

sys.setrecursionlimit(%d)
            f()""")
        with test.support.SuppressCrashReport():
            for i in (50, 1000):
                sub = subprocess.Popen([sys.executable, '-c', code % i],
                    stderr=subprocess.PIPE)
                err = sub.communicate()[1]
                self.assertTrue(sub.returncode, sub.returncode)
                self.assertIn(
                    b"Fatal Python error: Cannot recover from stack overflow",
                    err)

def test_getwindowsversion(self):
        # Raise SkipTest if sys doesn't have getwindowsversion attribute
        test.support.get_attribute(sys, "getwindowsversion")
        v = sys.getwindowsversion()
        self.assertEqual(len(v), 5)
        self.assertIsInstance(v[0], int)
        self.assertIsInstance(v[1], int)
        self.assertIsInstance(v[2], int)
        self.assertIsInstance(v[3], int)
        self.assertIsInstance(v[4], str)
        self.assertRaises(IndexError, operator.getitem, v, 5)
        self.assertIsInstance(v.major, int)
        self.assertIsInstance(v.minor, int)
        self.assertIsInstance(v.build, int)
        self.assertIsInstance(v.platform, int)
        self.assertIsInstance(v.service_pack, str)
        self.assertIsInstance(v.service_pack_minor, int)
        self.assertIsInstance(v.service_pack_major, int)
        self.assertIsInstance(v.suite_mask, int)
        self.assertIsInstance(v.product_type, int)
        self.assertEqual(v[0], v.major)
        self.assertEqual(v[1], v.minor)
        self.assertEqual(v[2], v.build)
        self.assertEqual(v[3], v.platform)
        self.assertEqual(v[4], v.service_pack)

# This is how platform.py calls it. Make sure tuple
        #  still has 5 elements
        maj, min, buildno, plat, csd = sys.getwindowsversion()

def test_call_tracing(self):
        self.assertRaises(TypeError, sys.call_tracing, type, 2)

@unittest.skipUnless(hasattr(sys, "setdlopenflags"),
                         'test needs sys.setdlopenflags()')
    def test_dlopenflags(self):
        self.assertTrue(hasattr(sys, "getdlopenflags"))
        self.assertRaises(TypeError, sys.getdlopenflags, 42)
        oldflags = sys.getdlopenflags()
        self.assertRaises(TypeError, sys.setdlopenflags)
        sys.setdlopenflags(oldflags+1)
        self.assertEqual(sys.getdlopenflags(), oldflags+1)
        sys.setdlopenflags(oldflags)

@test.support.refcount_test
    def test_refcount(self):
        # n here must be a global in order for this test to pass while
        # tracing with a python function.  Tracing calls PyFrame_FastToLocals
        # which will add a copy of any locals to the frame object, causing
        # the reference count to increase by 2 instead of 1.
        global n
        self.assertRaises(TypeError, sys.getrefcount)
        c = sys.getrefcount(None)
        n = None
        self.assertEqual(sys.getrefcount(None), c+1)
        del n
        self.assertEqual(sys.getrefcount(None), c)
        if hasattr(sys, "gettotalrefcount"):
            self.assertIsInstance(sys.gettotalrefcount(), int)

def test_getframe(self):
        self.assertRaises(TypeError, sys._getframe, 42, 42)
        self.assertRaises(ValueError, sys._getframe, 2000000000)
        self.assertTrue(
            SysModuleTest.test_getframe.__code__ \
            is sys._getframe().f_code
        )

# sys._current_frames() is a CPython-only gimmick.
    @test.support.reap_threads
    def test_current_frames(self):
        import threading
        import traceback

# Spawn a thread that blocks at a known place.  Then the main
        # thread does sys._current_frames(), and verifies that the frames
        # returned make sense.
        entered_g = threading.Event()
        leave_g = threading.Event()
        thread_info = []  # the thread's id

def f123():
            g456()

def g456():
            thread_info.append(threading.get_ident())
            entered_g.set()
            leave_g.wait()

t = threading.Thread(target=f123)
        t.start()
        entered_g.wait()

# At this point, t has finished its entered_g.set(), although it's
        # impossible to guess whether it's still on that line or has moved on
        # to its leave_g.wait().
        self.assertEqual(len(thread_info), 1)
        thread_id = thread_info[0]

d = sys._current_frames()
        for tid in d:
            self.assertIsInstance(tid, int)
            self.assertGreater(tid, 0)

main_id = threading.get_ident()
        self.assertIn(main_id, d)
        self.assertIn(thread_id, d)

# Verify that the captured main-thread frame is _this_ frame.
        frame = d.pop(main_id)
        self.assertTrue(frame is sys._getframe())

# Verify that the captured thread frame is blocked in g456, called
        # from f123.  This is a litte tricky, since various bits of
        # threading.py are also in the thread's call stack.
        frame = d.pop(thread_id)
        stack = traceback.extract_stack(frame)
        for i, (filename, lineno, funcname, sourceline) in enumerate(stack):
            if funcname == "f123":
                break
        else:
            self.fail("didn't find f123() on thread's call stack")

self.assertEqual(sourceline, "g456()")

# And the next record must be for g456().
        filename, lineno, funcname, sourceline = stack[i+1]
        self.assertEqual(funcname, "g456")
        self.assertIn(sourceline, ["leave_g.wait()", "entered_g.set()"])

# Reap the spawned thread.
        leave_g.set()
        t.join()

def test_attributes(self):
        self.assertIsInstance(sys.api_version, int)
        self.assertIsInstance(sys.argv, list)
        self.assertIn(sys.byteorder, ("little", "big"))
        self.assertIsInstance(sys.builtin_module_names, tuple)
        self.assertIsInstance(sys.copyright, str)
        self.assertIsInstance(sys.exec_prefix, str)
        self.assertIsInstance(sys.base_exec_prefix, str)
        self.assertIsInstance(sys.executable, str)
        self.assertEqual(len(sys.float_info), 11)
        self.assertEqual(sys.float_info.radix, 2)
        self.assertEqual(len(sys.int_info), 2)
        self.assertTrue(sys.int_info.bits_per_digit % 5 == 0)
        self.assertTrue(sys.int_info.sizeof_digit >= 1)
        self.assertEqual(type(sys.int_info.bits_per_digit), int)
        self.assertEqual(type(sys.int_info.sizeof_digit), int)
        self.assertIsInstance(sys.hexversion, int)

self.assertEqual(len(sys.hash_info), 9)
        self.assertLess(sys.hash_info.modulus, 2**sys.hash_info.width)
        # sys.hash_info.modulus should be a prime; we do a quick
        # probable primality test (doesn't exclude the possibility of
        # a Carmichael number)
        for x in range(1, 100):
            self.assertEqual(
                pow(x, sys.hash_info.modulus-1, sys.hash_info.modulus),
                1,
                "sys.hash_info.modulus {} is a non-prime".format(
                    sys.hash_info.modulus)
                )
        self.assertIsInstance(sys.hash_info.inf, int)
        self.assertIsInstance(sys.hash_info.nan, int)
        self.assertIsInstance(sys.hash_info.imag, int)
        algo = sysconfig.get_config_var("Py_HASH_ALGORITHM")
        if sys.hash_info.algorithm in {"fnv", "siphash24"}:
            self.assertIn(sys.hash_info.hash_bits, {32, 64})
            self.assertIn(sys.hash_info.seed_bits, {32, 64, 128})

if algo == 1:
                self.assertEqual(sys.hash_info.algorithm, "siphash24")
            elif algo == 2:
                self.assertEqual(sys.hash_info.algorithm, "fnv")
            else:
                self.assertIn(sys.hash_info.algorithm, {"fnv", "siphash24"})
        else:
            # PY_HASH_EXTERNAL
            self.assertEqual(algo, 0)
        self.assertGreaterEqual(sys.hash_info.cutoff, 0)
        self.assertLess(sys.hash_info.cutoff, 8)

self.assertIsInstance(sys.maxsize, int)
        self.assertIsInstance(sys.maxunicode, int)
        self.assertEqual(sys.maxunicode, 0x10FFFF)
        self.assertIsInstance(sys.platform, str)
        self.assertIsInstance(sys.prefix, str)
        self.assertIsInstance(sys.base_prefix, str)
        self.assertIsInstance(sys.version, str)
        vi = sys.version_info
        self.assertIsInstance(vi[:], tuple)
        self.assertEqual(len(vi), 5)
        self.assertIsInstance(vi[0], int)
        self.assertIsInstance(vi[1], int)
        self.assertIsInstance(vi[2], int)
        self.assertIn(vi[3], ("alpha", "beta", "candidate", "final"))
        self.assertIsInstance(vi[4], int)
        self.assertIsInstance(vi.major, int)
        self.assertIsInstance(vi.minor, int)
        self.assertIsInstance(vi.micro, int)
        self.assertIn(vi.releaselevel, ("alpha", "beta", "candidate", "final"))
        self.assertIsInstance(vi.serial, int)
        self.assertEqual(vi[0], vi.major)
        self.assertEqual(vi[1], vi.minor)
        self.assertEqual(vi[2], vi.micro)
        self.assertEqual(vi[3], vi.releaselevel)
        self.assertEqual(vi[4], vi.serial)
        self.assertTrue(vi > (1,0,0))
        self.assertIsInstance(sys.float_repr_style, str)
        self.assertIn(sys.float_repr_style, ('short', 'legacy'))
        if not sys.platform.startswith('win'):
            self.assertIsInstance(sys.abiflags, str)

def test_thread_info(self):
        info = sys.thread_info
        self.assertEqual(len(info), 3)
        self.assertIn(info.name, ('nt', 'pthread', 'solaris', None))
        self.assertIn(info.lock, ('semaphore', 'mutex+cond', None))

def test_43581(self):
        # Can't use sys.stdout, as this is a StringIO object when
        # the test runs under regrtest.
        self.assertEqual(sys.__stdout__.encoding, sys.__stderr__.encoding)

def test_intern(self):
        global INTERN_NUMRUNS
        INTERN_NUMRUNS += 1
        self.assertRaises(TypeError, sys.intern)
        s = "never interned before" + str(INTERN_NUMRUNS)
        self.assertTrue(sys.intern(s) is s)
        s2 = s.swapcase().swapcase()
        self.assertTrue(sys.intern(s2) is s)

# Subclasses of string can't be interned, because they
        # provide too much opportunity for insane things to happen.
        # We don't want them in the interned dict and if they aren't
        # actually interned, we don't want to create the appearance
        # that they are by allowing intern() to succeed.
        class S(str):
            def __hash__(self):
                return 123

self.assertRaises(TypeError, sys.intern, S("abc"))

def test_sys_flags(self):
        self.assertTrue(sys.flags)
        attrs = ("debug",
                 "inspect", "interactive", "optimize", "dont_write_bytecode",
                 "no_user_site", "no_site", "ignore_environment", "verbose",
                 "bytes_warning", "quiet", "hash_randomization", "isolated",
                 "dev_mode", "utf8_mode")
        for attr in attrs:
            self.assertTrue(hasattr(sys.flags, attr), attr)
            attr_type = bool if attr == "dev_mode" else int
            self.assertEqual(type(getattr(sys.flags, attr)), attr_type, attr)
        self.assertTrue(repr(sys.flags))
        self.assertEqual(len(sys.flags), len(attrs))

self.assertIn(sys.flags.utf8_mode, {0, 1, 2})

def assert_raise_on_new_sys_type(self, sys_attr):
        # Users are intentionally prevented from creating new instances of
        # sys.flags, sys.version_info, and sys.getwindowsversion.
        attr_type = type(sys_attr)
        with self.assertRaises(TypeError):
            attr_type()
        with self.assertRaises(TypeError):
            attr_type.__new__(attr_type)

def test_sys_flags_no_instantiation(self):
        self.assert_raise_on_new_sys_type(sys.flags)

def test_sys_version_info_no_instantiation(self):
        self.assert_raise_on_new_sys_type(sys.version_info)

def test_sys_getwindowsversion_no_instantiation(self):
        # Skip if not being run on Windows.
        test.support.get_attribute(sys, "getwindowsversion")
        self.assert_raise_on_new_sys_type(sys.getwindowsversion())

@test.support.cpython_only
    def test_clear_type_cache(self):
        sys._clear_type_cache()

def test_ioencoding(self):
        env = dict(os.environ)

# Test character: cent sign, encoded as 0x4A (ASCII J) in CP424,
        # not representable in ASCII.

env["PYTHONIOENCODING"] = "cp424"
        p = subprocess.Popen([sys.executable, "-c", 'print(chr(0xa2))'],
                             stdout = subprocess.PIPE, env=env)
        out = p.communicate()[0].strip()
        expected = ("\xa2" + os.linesep).encode("cp424")
        self.assertEqual(out, expected)

env["PYTHONIOENCODING"] = "ascii:replace"
        p = subprocess.Popen([sys.executable, "-c", 'print(chr(0xa2))'],
                             stdout = subprocess.PIPE, env=env)
        out = p.communicate()[0].strip()
        self.assertEqual(out, b'?')

env["PYTHONIOENCODING"] = "ascii"
        p = subprocess.Popen([sys.executable, "-c", 'print(chr(0xa2))'],
                             stdout=subprocess.PIPE, stderr=subprocess.PIPE,
                             env=env)
        out, err = p.communicate()
        self.assertEqual(out, b'')
        self.assertIn(b'UnicodeEncodeError:', err)
        self.assertIn(rb"'\xa2'", err)

env["PYTHONIOENCODING"] = "ascii:"
        p = subprocess.Popen([sys.executable, "-c", 'print(chr(0xa2))'],
                             stdout=subprocess.PIPE, stderr=subprocess.PIPE,
                             env=env)
        out, err = p.communicate()
        self.assertEqual(out, b'')
        self.assertIn(b'UnicodeEncodeError:', err)
        self.assertIn(rb"'\xa2'", err)

env["PYTHONIOENCODING"] = ":surrogateescape"
        p = subprocess.Popen([sys.executable, "-c", 'print(chr(0xdcbd))'],
                             stdout=subprocess.PIPE, env=env)
        out = p.communicate()[0].strip()
        self.assertEqual(out, b'\xbd')

@unittest.skipUnless(test.support.FS_NONASCII,
                         'requires OS support of non-ASCII encodings')
    @unittest.skipUnless(sys.getfilesystemencoding() == locale.getpreferredencoding(False),
                         'requires FS encoding to match locale')
    def test_ioencoding_nonascii(self):
        env = dict(os.environ)

env["PYTHONIOENCODING"] = ""
        p = subprocess.Popen([sys.executable, "-c",
                                'print(%a)' % test.support.FS_NONASCII],
                                stdout=subprocess.PIPE, env=env)
        out = p.communicate()[0].strip()
        self.assertEqual(out, os.fsencode(test.support.FS_NONASCII))

@unittest.skipIf(sys.base_prefix != sys.prefix,
                     'Test is not venv-compatible')
    def test_executable(self):
        # sys.executable should be absolute
        self.assertEqual(os.path.abspath(sys.executable), sys.executable)

# Issue #7774: Ensure that sys.executable is an empty string if argv[0]
        # has been set to a non existent program name and Python is unable to
        # retrieve the real program name

# For a normal installation, it should work without 'cwd'
        # argument. For test runs in the build directory, see #7774.
        python_dir = os.path.dirname(os.path.realpath(sys.executable))
        p = subprocess.Popen(
            ["nonexistent", "-c",
             'import sys; print(sys.executable.encode("ascii", "backslashreplace"))'],
            executable=sys.executable, stdout=subprocess.PIPE, cwd=python_dir)
        stdout = p.communicate()[0]
        executable = stdout.strip().decode("ASCII")
        p.wait()
        self.assertIn(executable, ["b''", repr(sys.executable.encode("ascii", "backslashreplace"))])

def check_fsencoding(self, fs_encoding, expected=None):
        self.assertIsNotNone(fs_encoding)
        codecs.lookup(fs_encoding)
        if expected:
            self.assertEqual(fs_encoding, expected)

def test_getfilesystemencoding(self):
        fs_encoding = sys.getfilesystemencoding()
        if sys.platform == 'darwin':
            expected = 'utf-8'
        else:
            expected = None
        self.check_fsencoding(fs_encoding, expected)

def c_locale_get_error_handler(self, locale, isolated=False, encoding=None):
        # Force the POSIX locale
        env = os.environ.copy()
        env["LC_ALL"] = locale
        env["PYTHONCOERCECLOCALE"] = "0"
        code = '\n'.join((
            'import sys',
            'def dump(name):',
            '    std = getattr(sys, name)',
            '    print("%s: %s" % (name, std.errors))',
            'dump("stdin")',
            'dump("stdout")',
            'dump("stderr")',
        ))
        args = [sys.executable, "-X", "utf8=0", "-c", code]
        if isolated:
            args.append("-I")
        if encoding is not None:
            env['PYTHONIOENCODING'] = encoding
        else:
            env.pop('PYTHONIOENCODING', None)
        p = subprocess.Popen(args,
                              stdout=subprocess.PIPE,
                              stderr=subprocess.STDOUT,
                              env=env,
                              universal_newlines=True)
        stdout, stderr = p.communicate()
        return stdout

def check_locale_surrogateescape(self, locale):
        out = self.c_locale_get_error_handler(locale, isolated=True)
        self.assertEqual(out,
                         'stdin: surrogateescape\n'
                         'stdout: surrogateescape\n'
                         'stderr: backslashreplace\n')

# replace the default error handler
        out = self.c_locale_get_error_handler(locale, encoding=':ignore')
        self.assertEqual(out,
                         'stdin: ignore\n'
                         'stdout: ignore\n'
                         'stderr: backslashreplace\n')

# force the encoding
        out = self.c_locale_get_error_handler(locale, encoding='iso8859-1')
        self.assertEqual(out,
                         'stdin: strict\n'
                         'stdout: strict\n'
                         'stderr: backslashreplace\n')
        out = self.c_locale_get_error_handler(locale, encoding='iso8859-1:')
        self.assertEqual(out,
                         'stdin: strict\n'
                         'stdout: strict\n'
                         'stderr: backslashreplace\n')

# have no any effect
        out = self.c_locale_get_error_handler(locale, encoding=':')
        self.assertEqual(out,
                         'stdin: surrogateescape\n'
                         'stdout: surrogateescape\n'
                         'stderr: backslashreplace\n')
        out = self.c_locale_get_error_handler(locale, encoding='')
        self.assertEqual(out,
                         'stdin: surrogateescape\n'
                         'stdout: surrogateescape\n'
                         'stderr: backslashreplace\n')

def test_c_locale_surrogateescape(self):
        self.check_locale_surrogateescape('C')

def test_posix_locale_surrogateescape(self):
        self.check_locale_surrogateescape('POSIX')

def test_implementation(self):
        # This test applies to all implementations equally.

levels = {'alpha': 0xA, 'beta': 0xB, 'candidate': 0xC, 'final': 0xF}

self.assertTrue(hasattr(sys.implementation, 'name'))
        self.assertTrue(hasattr(sys.implementation, 'version'))
        self.assertTrue(hasattr(sys.implementation, 'hexversion'))
        self.assertTrue(hasattr(sys.implementation, 'cache_tag'))

version = sys.implementation.version
        self.assertEqual(version[:2], (version.major, version.minor))

hexversion = (version.major << 24 | version.minor << 16 |
                      version.micro << 8 | levels[version.releaselevel] << 4 |
                      version.serial << 0)
        self.assertEqual(sys.implementation.hexversion, hexversion)

# PEP 421 requires that .name be lower case.
        self.assertEqual(sys.implementation.name,
                         sys.implementation.name.lower())

@test.support.cpython_only
    def test_debugmallocstats(self):
        # Test sys._debugmallocstats()
        from test.support.script_helper import assert_python_ok
        args = ['-c', 'import sys; sys._debugmallocstats()']
        ret, out, err = assert_python_ok(*args)
        self.assertIn(b"free PyDictObjects", err)

# The function has no parameter
        self.assertRaises(TypeError, sys._debugmallocstats, True)

@unittest.skipUnless(hasattr(sys, "getallocatedblocks"),
                         "sys.getallocatedblocks unavailable on this build")
    def test_getallocatedblocks(self):
        try:
            import _testcapi
        except ImportError:
            with_pymalloc = support.with_pymalloc()
        else:
            try:
                alloc_name = _testcapi.pymem_getallocatorsname()
            except RuntimeError as exc:
                # "cannot get allocators name" (ex: tracemalloc is used)
                with_pymalloc = True
            else:
                with_pymalloc = (alloc_name in ('pymalloc', 'pymalloc_debug'))

# Some sanity checks
        a = sys.getallocatedblocks()
        self.assertIs(type(a), int)
        if with_pymalloc:
            self.assertGreater(a, 0)
        else:
            # When WITH_PYMALLOC isn't available, we don't know anything
            # about the underlying implementation: the function might
            # return 0 or something greater.
            self.assertGreaterEqual(a, 0)
        try:
            # While we could imagine a Python session where the number of
            # multiple buffer objects would exceed the sharing of references,
            # it is unlikely to happen in a normal test run.
            self.assertLess(a, sys.gettotalrefcount())
        except AttributeError:
            # gettotalrefcount() not available
            pass
        gc.collect()
        b = sys.getallocatedblocks()
        self.assertLessEqual(b, a)
        gc.collect()
        c = sys.getallocatedblocks()
        self.assertIn(c, range(b - 50, b + 50))

@test.support.requires_type_collecting
    def test_is_finalizing(self):
        self.assertIs(sys.is_finalizing(), False)
        # Don't use the atexit module because _Py_Finalizing is only set
        # after calling atexit callbacks
        code = """if 1:
            import sys

class AtExit:
                is_finalizing = sys.is_finalizing
                print = print

def __del__(self):
                    self.print(self.is_finalizing(), flush=True)

# Keep a reference in the __main__ module namespace, so the
            # AtExit destructor will be called at Python exit
            ref = AtExit()
        """
        rc, stdout, stderr = assert_python_ok('-c', code)
        self.assertEqual(stdout.rstrip(), b'True')

@test.support.requires_type_collecting
    def test_issue20602(self):
        # sys.flags and sys.float_info were wiped during shutdown.
        code = """if 1:
            import sys
            class A:
                def __del__(self, sys=sys):
                    print(sys.flags)
                    print(sys.float_info)
            a = A()
            """
        rc, out, err = assert_python_ok('-c', code)
        out = out.splitlines()
        self.assertIn(b'sys.flags', out[0])
        self.assertIn(b'sys.float_info', out[1])

@unittest.skipUnless(hasattr(sys, 'getandroidapilevel'),
                         'need sys.getandroidapilevel()')
    def test_getandroidapilevel(self):
        level = sys.getandroidapilevel()
        self.assertIsInstance(level, int)
        self.assertGreater(level, 0)

def test_sys_tracebacklimit(self):
        code = """if 1:
            import sys
            def f1():
                1 / 0
            def f2():
                f1()
            sys.tracebacklimit = %r
            f2()
        """
        def check(tracebacklimit, expected):
            p = subprocess.Popen([sys.executable, '-c', code % tracebacklimit],
                                 stderr=subprocess.PIPE)
            out = p.communicate()[1]
            self.assertEqual(out.splitlines(), expected)

traceback = [
            b'Traceback (most recent call last):',
            b'  File "<string>", line 8, in <module>',
            b'  File "<string>", line 6, in f2',
            b'  File "<string>", line 4, in f1',
            b'ZeroDivisionError: division by zero'
        ]
        check(10, traceback)
        check(3, traceback)
        check(2, traceback[:1] + traceback[2:])
        check(1, traceback[:1] + traceback[3:])
        check(0, [traceback[-1]])
        check(-1, [traceback[-1]])
        check(1<<1000, traceback)
        check(-1<<1000, [traceback[-1]])
        check(None, traceback)

def test_no_duplicates_in_meta_path(self):
        self.assertEqual(len(sys.meta_path), len(set(sys.meta_path)))

@unittest.skipUnless(hasattr(sys, "_enablelegacywindowsfsencoding"),
                         'needs sys._enablelegacywindowsfsencoding()')
    def test__enablelegacywindowsfsencoding(self):
        code = ('import sys',
                'sys._enablelegacywindowsfsencoding()',
                'print(sys.getfilesystemencoding(), sys.getfilesystemencodeerrors())')
        rc, out, err = assert_python_ok('-c', '; '.join(code))
        out = out.decode('ascii', 'replace').rstrip()
        self.assertEqual(out, 'mbcs replace')

@test.support.cpython_only
class UnraisableHookTest(unittest.TestCase):
    def write_unraisable_exc(self, exc, err_msg, obj):
        import _testcapi
        import types
        err_msg2 = f"Exception ignored {err_msg}"
        try:
            _testcapi.write_unraisable_exc(exc, err_msg, obj)
            return types.SimpleNamespace(exc_type=type(exc),
                                         exc_value=exc,
                                         exc_traceback=exc.__traceback__,
                                         err_msg=err_msg2,
                                         object=obj)
        finally:
            # Explicitly break any reference cycle
            exc = None

def test_original_unraisablehook(self):
        for err_msg in (None, "original hook"):
            with self.subTest(err_msg=err_msg):
                obj = "an object"

with test.support.captured_output("stderr") as stderr:
                    with test.support.swap_attr(sys, 'unraisablehook',
                                                sys.__unraisablehook__):
                        self.write_unraisable_exc(ValueError(42), err_msg, obj)

err = stderr.getvalue()
                if err_msg is not None:
                    self.assertIn(f'Exception ignored {err_msg}: {obj!r}\n', err)
                else:
                    self.assertIn(f'Exception ignored in: {obj!r}\n', err)
                self.assertIn('Traceback (most recent call last):\n', err)
                self.assertIn('ValueError: 42\n', err)

def test_original_unraisablehook_err(self):
        # bpo-22836: PyErr_WriteUnraisable() should give sensible reports
        class BrokenDel:
            def __del__(self):
                exc = ValueError("del is broken")
                # The following line is included in the traceback report:
                raise exc

class BrokenStrException(Exception):
            def __str__(self):
                raise Exception("str() is broken")

class BrokenExceptionDel:
            def __del__(self):
                exc = BrokenStrException()
                # The following line is included in the traceback report:
                raise exc

for test_class in (BrokenDel, BrokenExceptionDel):
            with self.subTest(test_class):
                obj = test_class()
                with test.support.captured_stderr() as stderr, \
                     test.support.swap_attr(sys, 'unraisablehook',
                                            sys.__unraisablehook__):
                    # Trigger obj.__del__()
                    del obj

report = stderr.getvalue()
                self.assertIn("Exception ignored", report)
                self.assertIn(test_class.__del__.__qualname__, report)
                self.assertIn("test_sys.py", report)
                self.assertIn("raise exc", report)
                if test_class is BrokenExceptionDel:
                    self.assertIn("BrokenStrException", report)
                    self.assertIn("<exception str() failed>", report)
                else:
                    self.assertIn("ValueError", report)
                    self.assertIn("del is broken", report)
                self.assertTrue(report.endswith("\n"))

def test_original_unraisablehook_wrong_type(self):
        exc = ValueError(42)
        with test.support.swap_attr(sys, 'unraisablehook',
                                    sys.__unraisablehook__):
            with self.assertRaises(TypeError):
                sys.unraisablehook(exc)

def test_custom_unraisablehook(self):
        hook_args = None

def hook_func(args):
            nonlocal hook_args
            hook_args = args

obj = object()
        try:
            with test.support.swap_attr(sys, 'unraisablehook', hook_func):
                expected = self.write_unraisable_exc(ValueError(42),
                                                     "custom hook", obj)
                for attr in "exc_type exc_value exc_traceback err_msg object".split():
                    self.assertEqual(getattr(hook_args, attr),
                                     getattr(expected, attr),
                                     (hook_args, expected))
        finally:
            # expected and hook_args contain an exception: break reference cycle
            expected = None
            hook_args = None

def test_custom_unraisablehook_fail(self):
        def hook_func(*args):
            raise Exception("hook_func failed")

with test.support.captured_output("stderr") as stderr:
            with test.support.swap_attr(sys, 'unraisablehook', hook_func):
                self.write_unraisable_exc(ValueError(42),
                                          "custom hook fail", None)

err = stderr.getvalue()
        self.assertIn(f'Exception ignored in sys.unraisablehook: '
                      f'{hook_func!r}\n',
                      err)
        self.assertIn('Traceback (most recent call last):\n', err)
        self.assertIn('Exception: hook_func failed\n', err)

@test.support.cpython_only
class SizeofTest(unittest.TestCase):

def setUp(self):
        self.P = struct.calcsize('P')
        self.longdigit = sys.int_info.sizeof_digit
        import _testcapi
        self.gc_headsize = _testcapi.SIZEOF_PYGC_HEAD

check_sizeof = test.support.check_sizeof

def test_gc_head_size(self):
        # Check that the gc header size is added to objects tracked by the gc.
        vsize = test.support.calcvobjsize
        gc_header_size = self.gc_headsize
        # bool objects are not gc tracked
        self.assertEqual(sys.getsizeof(True), vsize('') + self.longdigit)
        # but lists are
        self.assertEqual(sys.getsizeof([]), vsize('Pn') + gc_header_size)

def test_errors(self):
        class BadSizeof:
            def __sizeof__(self):
                raise ValueError
        self.assertRaises(ValueError, sys.getsizeof, BadSizeof())

class InvalidSizeof:
            def __sizeof__(self):
                return None
        self.assertRaises(TypeError, sys.getsizeof, InvalidSizeof())
        sentinel = ["sentinel"]
        self.assertIs(sys.getsizeof(InvalidSizeof(), sentinel), sentinel)

class FloatSizeof:
            def __sizeof__(self):
                return 4.5
        self.assertRaises(TypeError, sys.getsizeof, FloatSizeof())
        self.assertIs(sys.getsizeof(FloatSizeof(), sentinel), sentinel)

class OverflowSizeof(int):
            def __sizeof__(self):
                return int(self)
        self.assertEqual(sys.getsizeof(OverflowSizeof(sys.maxsize)),
                         sys.maxsize + self.gc_headsize)
        with self.assertRaises(OverflowError):
            sys.getsizeof(OverflowSizeof(sys.maxsize + 1))
        with self.assertRaises(ValueError):
            sys.getsizeof(OverflowSizeof(-1))
        with self.assertRaises((ValueError, OverflowError)):
            sys.getsizeof(OverflowSizeof(-sys.maxsize - 1))

def test_default(self):
        size = test.support.calcvobjsize
        self.assertEqual(sys.getsizeof(True), size('') + self.longdigit)
        self.assertEqual(sys.getsizeof(True, -1), size('') + self.longdigit)

def test_objecttypes(self):
        # check all types defined in Objects/
        calcsize = struct.calcsize
        size = test.support.calcobjsize
        vsize = test.support.calcvobjsize
        check = self.check_sizeof
        # bool
        check(True, vsize('') + self.longdigit)
        # buffer
        # XXX
        # builtin_function_or_method
        check(len, size('5P'))
        # bytearray
        samples = [b'', b'u'*100000]
        for sample in samples:
            x = bytearray(sample)
            check(x, vsize('n2Pi') + x.__alloc__())
        # bytearray_iterator
        check(iter(bytearray()), size('nP'))
        # bytes
        check(b'', vsize('n') + 1)
        check(b'x' * 10, vsize('n') + 11)
        # cell
        def get_cell():
            x = 42
            def inner():
                return x
            return inner
        check(get_cell().__closure__[0], size('P'))
        # code
        def check_code_size(a, expected_size):
            self.assertGreaterEqual(sys.getsizeof(a), expected_size)
        check_code_size(get_cell().__code__, size('6i13P'))
        check_code_size(get_cell.__code__, size('6i13P'))
        def get_cell2(x):
            def inner():
                return x
            return inner
        check_code_size(get_cell2.__code__, size('6i13P') + calcsize('n'))
        # complex
        check(complex(0,1), size('2d'))
        # method_descriptor (descriptor object)
        check(str.lower, size('3PPP'))
        # classmethod_descriptor (descriptor object)
        # XXX
        # member_descriptor (descriptor object)
        import datetime
        check(datetime.timedelta.days, size('3PP'))
        # getset_descriptor (descriptor object)
        import collections
        check(collections.defaultdict.default_factory, size('3PP'))
        # wrapper_descriptor (descriptor object)
        check(int.__add__, size('3P2P'))
        # method-wrapper (descriptor object)
        check({}.__iter__, size('2P'))
        # empty dict
        check({}, size('nQ2P'))
        # dict
        check({"a": 1}, size('nQ2P') + calcsize('2nP2n') + 8 + (8*2//3)*calcsize('n2P'))
        longdict = {1:1, 2:2, 3:3, 4:4, 5:5, 6:6, 7:7, 8:8}
        check(longdict, size('nQ2P') + calcsize('2nP2n') + 16 + (16*2//3)*calcsize('n2P'))
        # dictionary-keyview
        check({}.keys(), size('P'))
        # dictionary-valueview
        check({}.values(), size('P'))
        # dictionary-itemview
        check({}.items(), size('P'))
        # dictionary iterator
        check(iter({}), size('P2nPn'))
        # dictionary-keyiterator
        check(iter({}.keys()), size('P2nPn'))
        # dictionary-valueiterator
        check(iter({}.values()), size('P2nPn'))
        # dictionary-itemiterator
        check(iter({}.items()), size('P2nPn'))
        # dictproxy
        class C(object): pass
        check(C.__dict__, size('P'))
        # BaseException
        check(BaseException(), size('5Pb'))
        # UnicodeEncodeError
        check(UnicodeEncodeError("", "", 0, 0, ""), size('5Pb 2P2nP'))
        # UnicodeDecodeError
        check(UnicodeDecodeError("", b"", 0, 0, ""), size('5Pb 2P2nP'))
        # UnicodeTranslateError
        check(UnicodeTranslateError("", 0, 1, ""), size('5Pb 2P2nP'))
        # ellipses
        check(Ellipsis, size(''))
        # EncodingMap
        import codecs, encodings.iso8859_3
        x = codecs.charmap_build(encodings.iso8859_3.decoding_table)
        check(x, size('32B2iB'))
        # enumerate
        check(enumerate([]), size('n3P'))
        # reverse
        check(reversed(''), size('nP'))
        # float
        check(float(0), size('d'))
        # sys.floatinfo
        check(sys.float_info, vsize('') + self.P * len(sys.float_info))
        # frame
        import inspect
        CO_MAXBLOCKS = 20
        x = inspect.currentframe()
        ncells = len(x.f_code.co_cellvars)
        nfrees = len(x.f_code.co_freevars)
        extras = x.f_code.co_stacksize + x.f_code.co_nlocals +\
                  ncells + nfrees - 1
        check(x, vsize('5P2c4P3ic' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P'))
        # function
        def func(): pass
        check(func, size('13P'))
        class c():
            @staticmethod
            def foo():
                pass
            @classmethod
            def bar(cls):
                pass
            # staticmethod
            check(foo, size('PP'))
            # classmethod
            check(bar, size('PP'))
        # generator
        def get_gen(): yield 1
        check(get_gen(), size('Pb2PPP4P'))
        # iterator
        check(iter('abc'), size('lP'))
        # callable-iterator
        import re
        check(re.finditer('',''), size('2P'))
        # list
        samples = [[], [1,2,3], ['1', '2', '3']]
        for sample in samples:
            check(sample, vsize('Pn') + len(sample)*self.P)
        # sortwrapper (list)
        # XXX
        # cmpwrapper (list)
        # XXX
        # listiterator (list)
        check(iter([]), size('lP'))
        # listreverseiterator (list)
        check(reversed([]), size('nP'))
        # int
        check(0, vsize(''))
        check(1, vsize('') + self.longdigit)
        check(-1, vsize('') + self.longdigit)
        PyLong_BASE = 2**sys.int_info.bits_per_digit
        check(int(PyLong_BASE), vsize('') + 2*self.longdigit)
        check(int(PyLong_BASE**2-1), vsize('') + 2*self.longdigit)
        check(int(PyLong_BASE**2), vsize('') + 3*self.longdigit)
        # module
        check(unittest, size('PnPPP'))
        # None
        check(None, size(''))
        # NotImplementedType
        check(NotImplemented, size(''))
        # object
        check(object(), size(''))
        # property (descriptor object)
        class C(object):
            def getx(self): return self.__x
            def setx(self, value): self.__x = value
            def delx(self): del self.__x
            x = property(getx, setx, delx, "")
            check(x, size('4Pi'))
        # PyCapsule
        # XXX
        # rangeiterator
        check(iter(range(1)), size('4l'))
        # reverse
        check(reversed(''), size('nP'))
        # range
        check(range(1), size('4P'))
        check(range(66000), size('4P'))
        # set
        # frozenset
        PySet_MINSIZE = 8
        samples = [[], range(10), range(50)]
        s = size('3nP' + PySet_MINSIZE*'nP' + '2nP')
        for sample in samples:
            minused = len(sample)
            if minused == 0: tmp = 1
            # the computation of minused is actually a bit more complicated
            # but this suffices for the sizeof test
            minused = minused*2
            newsize = PySet_MINSIZE
            while newsize <= minused:
                newsize = newsize << 1
            if newsize <= 8:
                check(set(sample), s)
                check(frozenset(sample), s)
            else:
                check(set(sample), s + newsize*calcsize('nP'))
                check(frozenset(sample), s + newsize*calcsize('nP'))
        # setiterator
        check(iter(set()), size('P3n'))
        # slice
        check(slice(0), size('3P'))
        # super
        check(super(int), size('3P'))
        # tuple
        check((), vsize(''))
        check((1,2,3), vsize('') + 3*self.P)
        # type
        # static type: PyTypeObject
        fmt = 'P2nPI13Pl4Pn9Pn11PIPPP'
        if hasattr(sys, 'getcounts'):
            fmt += '3n2P'
        s = vsize(fmt)
        check(int, s)
        # class
        s = vsize(fmt +                 # PyTypeObject
                  '3P'                  # PyAsyncMethods
                  '36P'                 # PyNumberMethods
                  '3P'                  # PyMappingMethods
                  '10P'                 # PySequenceMethods
                  '2P'                  # PyBufferProcs
                  '4P')
        class newstyleclass(object): pass
        # Separate block for PyDictKeysObject with 8 keys and 5 entries
        check(newstyleclass, s + calcsize("2nP2n0P") + 8 + 5*calcsize("n2P"))
        # dict with shared keys
        check(newstyleclass().__dict__, size('nQ2P') + 5*self.P)
        o = newstyleclass()
        o.a = o.b = o.c = o.d = o.e = o.f = o.g = o.h = 1
        # Separate block for PyDictKeysObject with 16 keys and 10 entries
        check(newstyleclass, s + calcsize("2nP2n0P") + 16 + 10*calcsize("n2P"))
        # dict with shared keys
        check(newstyleclass().__dict__, size('nQ2P') + 10*self.P)
        # unicode
        # each tuple contains a string and its expected character size
        # don't put any static strings here, as they may contain
        # wchar_t or UTF-8 representations
        samples = ['1'*100, '\xff'*50,
                   '\u0100'*40, '\uffff'*100,
                   '\U00010000'*30, '\U0010ffff'*100]
        asciifields = "nnbP"
        compactfields = asciifields + "nPn"
        unicodefields = compactfields + "P"
        for s in samples:
            maxchar = ord(max(s))
            if maxchar < 128:
                L = size(asciifields) + len(s) + 1
            elif maxchar < 256:
                L = size(compactfields) + len(s) + 1
            elif maxchar < 65536:
                L = size(compactfields) + 2*(len(s) + 1)
            else:
                L = size(compactfields) + 4*(len(s) + 1)
            check(s, L)
        # verify that the UTF-8 size is accounted for
        s = chr(0x4000)   # 4 bytes canonical representation
        check(s, size(compactfields) + 4)
        # compile() will trigger the generation of the UTF-8
        # representation as a side effect
        compile(s, "<stdin>", "eval")
        check(s, size(compactfields) + 4 + 4)
        # TODO: add check that forces the presence of wchar_t representation
        # TODO: add check that forces layout of unicodefields
        # weakref
        import weakref
        check(weakref.ref(int), size('2Pn2P'))
        # weakproxy
        # XXX
        # weakcallableproxy
        check(weakref.proxy(int), size('2Pn2P'))

def check_slots(self, obj, base, extra):
        expected = sys.getsizeof(base) + struct.calcsize(extra)
        if gc.is_tracked(obj) and not gc.is_tracked(base):
            expected += self.gc_headsize
        self.assertEqual(sys.getsizeof(obj), expected)

def test_slots(self):
        # check all subclassable types defined in Objects/ that allow
        # non-empty __slots__
        check = self.check_slots
        class BA(bytearray):
            __slots__ = 'a', 'b', 'c'
        check(BA(), bytearray(), '3P')
        class D(dict):
            __slots__ = 'a', 'b', 'c'
        check(D(x=[]), {'x': []}, '3P')
        class L(list):
            __slots__ = 'a', 'b', 'c'
        check(L(), [], '3P')
        class S(set):
            __slots__ = 'a', 'b', 'c'
        check(S(), set(), '3P')
        class FS(frozenset):
            __slots__ = 'a', 'b', 'c'
        check(FS(), frozenset(), '3P')
        from collections import OrderedDict
        class OD(OrderedDict):
            __slots__ = 'a', 'b', 'c'
        check(OD(x=[]), OrderedDict(x=[]), '3P')

def test_pythontypes(self):
        # check all types defined in Python/
        size = test.support.calcobjsize
        vsize = test.support.calcvobjsize
        check = self.check_sizeof
        # _ast.AST
        import _ast
        check(_ast.AST(), size('P'))
        try:
            raise TypeError
        except TypeError:
            tb = sys.exc_info()[2]
            # traceback
            if tb is not None:
                check(tb, size('2P2i'))
        # symtable entry
        # XXX
        # sys.flags
        check(sys.flags, vsize('') + self.P * len(sys.flags))

def test_asyncgen_hooks(self):
        old = sys.get_asyncgen_hooks()
        self.assertIsNone(old.firstiter)
        self.assertIsNone(old.finalizer)

firstiter = lambda *a: None
        sys.set_asyncgen_hooks(firstiter=firstiter)
        hooks = sys.get_asyncgen_hooks()
        self.assertIs(hooks.firstiter, firstiter)
        self.assertIs(hooks[0], firstiter)
        self.assertIs(hooks.finalizer, None)
        self.assertIs(hooks[1], None)

finalizer = lambda *a: None
        sys.set_asyncgen_hooks(finalizer=finalizer)
        hooks = sys.get_asyncgen_hooks()
        self.assertIs(hooks.firstiter, firstiter)
        self.assertIs(hooks[0], firstiter)
        self.assertIs(hooks.finalizer, finalizer)
        self.assertIs(hooks[1], finalizer)

sys.set_asyncgen_hooks(*old)
        cur = sys.get_asyncgen_hooks()
        self.assertIsNone(cur.firstiter)
        self.assertIsNone(cur.finalizer)

def test_changing_sys_stderr_and_removing_reference(self):
        # If the default displayhook doesn't take a strong reference
        # to sys.stderr the following code can crash. See bpo-43660
        # for more details.
        code = textwrap.dedent('''
            import sys
            class MyStderr:
                def write(self, s):
                    sys.stderr = None
            sys.stderr = MyStderr()
            1/0
        ''')
        rc, out, err = assert_python_failure('-c', code)
        self.assertEqual(out, b"")
        self.assertEqual(err, b"")

if __name__ == "__main__":
    unittest.main()

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