```================================== FAILURES ===================================________________ UnicodeFilePathsTest.test_accented_directory _________________[gw1] win32 -- Python 2.7.17 C:\projects\coveragepy\.tox\py27\Scripts\python.EXEargs = (<tests.test_process.UnicodeFilePathsTest testMethod=test_accented_directory>,)kwargs = {}    @functools.wraps(method)    def _wrapper(*args, **kwargs):        try:>           result = method(*args, **kwargs)tests\coveragetest.py:47:_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _tests\test_process.py:1320: in test_accented_directory    self.assertEqual(out, "accented\n")E   AssertionError: 'Traceback (most recent call last):\n  File "C:\\projects\\coveragepy\\.tox\\py2 [truncated]... != 'accented\n'E   + accentedE   - Traceback (most recent call last):E   -   File "C:\projects\coveragepy\.tox\py27\Scripts\coverage-script.py", line 11, in <module>E   -     load_entry_point('coverage', 'console_scripts', 'coverage')()E   -   File "c:\projects\coveragepy\coverage\cmdline.py", line 865, in mainE   -     status = CoverageScript().command_line(argv)E   -   File "c:\projects\coveragepy\coverage\cmdline.py", line 582, in command_lineE   -     return self.do_run(options, args)E   -   File "c:\projects\coveragepy\coverage\cmdline.py", line 737, in do_runE   -     self.coverage.start()E   -   File "c:\projects\coveragepy\coverage\control.py", line 524, in startE   -     self._init()E   -   File "c:\projects\coveragepy\coverage\control.py", line 253, in _initE   -     self._debug = DebugControl(self.config.debug, self._debug_file)E   -   File "c:\projects\coveragepy\coverage\debug.py", line 36, in __init__E   -     def __init__(self, options, output):E   -   File "c:\projects\coveragepy\coverage\pytracer.py", line 135, in _traceE   -     disp = self.should_trace(filename, frame)E   -   File "c:\projects\coveragepy\coverage\control.py", line 315, in _should_traceE   -     disp = self._inorout.should_trace(filename, frame)E   -   File "c:\projects\coveragepy\coverage\inorout.py", line 309, in should_traceE   -     reason = self.check_include_omit_etc(disp.source_filename, frame)E   -   File "c:\projects\coveragepy\coverage\inorout.py", line 339, in check_include_omit_etcE   -     if self.source_match.match(filename):E   -   File "c:\projects\coveragepy\coverage\files.py", line 232, in matchE   -     fpath = self.aliases.map(fpath)E   -   File "c:\projects\coveragepy\coverage\files.py", line 413, in mapE   -     new = canonical_filename(new)E   -   File "<decorator-gen-2>", line 2, in canonical_filenameE   -   File "C:\projects\coveragepy\.tox\py27\lib\site-packages\contracts\main.py", line 270, in contracts_checkerE   -     result = function_(*args, **kwargs)E   -   File "c:\projects\coveragepy\coverage\files.py", line 67, in canonical_filenameE   -     f = os.path.join(path, filename)E   -   File "c:\python27\lib\ntpath.py", line 85, in joinE   -     result_path = result_path + p_pathE   - UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 124: ordinal not in range(128)E   - Coverage.py warning: Trace function changed, measurement is likely wrong: None (trace-changed)---------------------------- Captured stdout call -----------------------------Traceback (most recent call last):  File "C:\projects\coveragepy\.tox\py27\Scripts\coverage-script.py", line 11, in <module>    load_entry_point('coverage', 'console_scripts', 'coverage')()  File "c:\projects\coveragepy\coverage\cmdline.py", line 865, in main    status = CoverageScript().command_line(argv)  File "c:\projects\coveragepy\coverage\cmdline.py", line 582, in command_line    return self.do_run(options, args)  File "c:\projects\coveragepy\coverage\cmdline.py", line 737, in do_run    self.coverage.start()  File "c:\projects\coveragepy\coverage\control.py", line 524, in start    self._init()  File "c:\projects\coveragepy\coverage\control.py", line 253, in _init    self._debug = DebugControl(self.config.debug, self._debug_file)  File "c:\projects\coveragepy\coverage\debug.py", line 36, in __init__    def __init__(self, options, output):  File "c:\projects\coveragepy\coverage\pytracer.py", line 135, in _trace    disp = self.should_trace(filename, frame)  File "c:\projects\coveragepy\coverage\control.py", line 315, in _should_trace    disp = self._inorout.should_trace(filename, frame)  File "c:\projects\coveragepy\coverage\inorout.py", line 309, in should_trace    reason = self.check_include_omit_etc(disp.source_filename, frame)  File "c:\projects\coveragepy\coverage\inorout.py", line 339, in check_include_omit_etc    if self.source_match.match(filename):  File "c:\projects\coveragepy\coverage\files.py", line 232, in match    fpath = self.aliases.map(fpath)  File "c:\projects\coveragepy\coverage\files.py", line 413, in map    new = canonical_filename(new)  File "<decorator-gen-2>", line 2, in canonical_filename  File "C:\projects\coveragepy\.tox\py27\lib\site-packages\contracts\main.py", line 270, in contracts_checker    result = function_(*args, **kwargs)  File "c:\projects\coveragepy\coverage\files.py", line 67, in canonical_filename    f = os.path.join(path, filename)  File "c:\python27\lib\ntpath.py", line 85, in join    result_path = result_path + p_pathUnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 124: ordinal not in range(128)Coverage.py warning: Trace function changed, measurement is likely wrong: None (trace-changed)=========================== short test summary info ===========================```