Various tests failures on Python 3.12.0rc1

Comienza reproduciendo los fallos indicados en Python 3.12.0rc1 y, después, lee tests/test_archive.py y tests/test_extractcode_cli.py, incluido su helper run_extract y los casos de archivo que fallan. El trabajo estará terminado cuando se hayan identificado las causas relacionadas con Python 3.12 y todas las pruebas indicadas pasen en el entorno de Fedora especificado.

Environment:

• Python 3.12.0rc1
• Fedora Rawhide
• libmagic 5.45
• libarchive 3.7.1
• p7zip 16.02

Summary

FAILED tests/test_archive.py::TestGetExtractorTest::test_get_extractor_qcow2
FAILED tests/test_archive.py::TestRar::test_extract_rar_with_trailing_data - ...
FAILED tests/test_extractcode_cli.py::test_extractcode_command_can_take_an_empty_directory
FAILED tests/test_extractcode_cli.py::test_extractcode_command_does_extract_verbose
FAILED tests/test_extractcode_cli.py::test_extractcode_command_always_shows_something_if_not_using_a_tty_verbose_or_not
FAILED tests/test_extractcode_cli.py::test_extractcode_command_works_with_relative_paths
FAILED tests/test_extractcode_cli.py::test_extractcode_command_works_with_relative_paths_verbose
FAILED tests/test_extractcode_cli.py::test_usage_and_help_return_a_correct_script_name_on_all_platforms
FAILED tests/test_extractcode_cli.py::test_extractcode_command_can_extract_archive_with_unicode_names_verbose
FAILED tests/test_extractcode_cli.py::test_extractcode_command_can_extract_archive_with_unicode_names
FAILED tests/test_extractcode_cli.py::test_extractcode_command_can_extract_shallow
FAILED tests/test_extractcode_cli.py::test_extractcode_command_can_ignore - A...
FAILED tests/test_extractcode_cli.py::test_extractcode_command_does_not_crash_with_replace_originals_and_corrupted_archives
FAILED tests/test_extractcode_cli.py::test_extractcode_command_can_extract_nuget

Details:

=================================== FAILURES ===================================
________________ TestGetExtractorTest.test_get_extractor_qcow2 _________________

self = <test_archive.TestGetExtractorTest testMethod=test_get_extractor_qcow2>

    def test_get_extractor_qcow2(self):
        test_file = self.extract_test_tar('vmimage/foobar.qcow2.tar.gz')
        test_file = str(Path(test_file) / 'foobar.qcow2')
    
        expected = []
        self.check_get_extractors(test_file, expected, kinds=extractcode.default_kinds)
    
        expected = [archive.extract_vm_image]
>       self.check_get_extractors(test_file, expected, kinds=())

tests/test_archive.py:217: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <test_archive.TestGetExtractorTest testMethod=test_get_extractor_qcow2>
test_file = '/tmp/scancode-tk-tests -uejk8_7m/u6e9wzs8/foobar.qcow2.tar.gz/foobar.qcow2'
expected = [<function extract at 0x7f702e883c40>], kinds = ()

    def check_get_extractors(self, test_file, expected, kinds=()):
        from extractcode import archive
    
        test_loc = self.get_test_loc(test_file)
        if kinds:
            extractors = archive.get_extractors(test_loc, kinds)
        else:
            extractors = archive.get_extractors(test_loc)
    
        fe = fileutils.file_extension(test_loc).lower()
        em = ', '.join(e.__module__ + '.' + e.__name__ for e in extractors)
    
        msg = ('%(expected)r == %(extractors)r for %(test_file)s\n'
               'with fe:%(fe)r, em:%(em)s' % locals())
>       assert expected == extractors, msg
E       AssertionError: [<function extract at 0x7f702e883c40>] == [] for /tmp/scancode-tk-tests -uejk8_7m/u6e9wzs8/foobar.qcow2.tar.gz/foobar.qcow2
E         with fe:'.qcow2', em:
E       assert [<function ex...7f702e883c40>] == []
E         Left contains one more item: <function extract at 0x7f702e883c40>
E         Use -v to get more diff

tests/extractcode_assert_utils.py:166: AssertionError
_________________ TestRar.test_extract_rar_with_trailing_data __________________

self = <test_archive.TestRar testMethod=test_extract_rar_with_trailing_data>

    def test_extract_rar_with_trailing_data(self):
        test_file = self.get_test_loc('archive/rar/rar_trailing.rar')
        test_dir = self.get_temp_dir()
        expected = Exception('Unknown error')
>       self.assertRaisesInstance(expected, archive.extract_rar, test_file, test_dir)

tests/test_archive.py:1693: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <test_archive.TestRar testMethod=test_extract_rar_with_trailing_data>
excInstance = Exception('Unknown error')
callableObj = <function extract at 0x7f702e881620>
args = ('/builddir/build/BUILD/extractcode-31.0.0/tests/data/archive/rar/rar_trailing.rar', '/tmp/scancode-tk-tests -uejk8_7m/h4a951m9')
kwargs = {}, excClass = <class 'Exception'>, excName = 'Exception'

    def assertRaisesInstance(self, excInstance, callableObj, *args, **kwargs):
        """
        This assertion accepts an instance instead of a class for refined
        exception testing.
        """
        kwargs = kwargs or {}
        excClass = excInstance.__class__
        try:
            callableObj(*args, **kwargs)
        except excClass as e:
            assert str(e).startswith(str(excInstance))
        else:
            if hasattr(excClass, '__name__'):
                excName = excClass.__name__
            else:
                excName = str(excClass)
>           raise self.failureException('%s not raised' % excName)
E           AssertionError: Exception not raised

tests/extractcode_assert_utils.py:184: AssertionError
_____________ test_extractcode_command_can_take_an_empty_directory _____________

    def test_extractcode_command_can_take_an_empty_directory():
        test_dir = test_env.get_temp_dir()
>       result = run_extract([test_dir], expected_rc=0)

tests/test_extractcode_cli.py:64: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

options = ['/tmp/scancode-tk-tests -uejk8_7m/fna7ftnv'], expected_rc = 0
cwd = None

    def run_extract(options, expected_rc=None, cwd=None):
        """
        Run extractcode as a plain subprocess. Return rc, stdout, stderr.
        """
        bin_dir = 'Scripts' if on_windows else 'bin'
        # note: this assumes that we are using a standard directory layout as set
        # with the configure script
        cmd_loc = os.path.join(project_root, 'venv', bin_dir, 'extractcode')
>       assert os.path.exists(cmd_loc + ('.exe' if on_windows else ''))
E       AssertionError: assert False
E        +  where False = <function exists at 0x7f7030703920>(('/builddir/build/BUILD/extractcode-31.0.0/venv/bin/extractcode' + ''))
E        +    where <function exists at 0x7f7030703920> = <module 'posixpath' (frozen)>.exists
E        +      where <module 'posixpath' (frozen)> = os.path

tests/test_extractcode_cli.py:38: AssertionError
________________ test_extractcode_command_does_extract_verbose _________________

    def test_extractcode_command_does_extract_verbose():
        test_dir = test_env.get_test_loc('cli/extract', copy=True)
>       result = run_extract(['--verbose', test_dir], expected_rc=1)

tests/test_extractcode_cli.py:72: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

options = ['--verbose', '/tmp/scancode-tk-tests -uejk8_7m/bbuw3oy4/extract']
expected_rc = 1, cwd = None

    def run_extract(options, expected_rc=None, cwd=None):
        """
        Run extractcode as a plain subprocess. Return rc, stdout, stderr.
        """
        bin_dir = 'Scripts' if on_windows else 'bin'
        # note: this assumes that we are using a standard directory layout as set
        # with the configure script
        cmd_loc = os.path.join(project_root, 'venv', bin_dir, 'extractcode')
>       assert os.path.exists(cmd_loc + ('.exe' if on_windows else ''))
E       AssertionError: assert False
E        +  where False = <function exists at 0x7f7030703920>(('/builddir/build/BUILD/extractcode-31.0.0/venv/bin/extractcode' + ''))
E        +    where <function exists at 0x7f7030703920> = <module 'posixpath' (frozen)>.exists
E        +      where <module 'posixpath' (frozen)> = os.path

tests/test_extractcode_cli.py:38: AssertionError
_ test_extractcode_command_always_shows_something_if_not_using_a_tty_verbose_or_not _

    def test_extractcode_command_always_shows_something_if_not_using_a_tty_verbose_or_not():
        test_dir = test_env.get_test_loc('cli/extract/some.tar.gz', copy=True)
    
>       result = run_extract(options=['--verbose', test_dir], expected_rc=0)

tests/test_extractcode_cli.py:91: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

options = ['--verbose', '/tmp/scancode-tk-tests -uejk8_7m/36o7wnm7/some.tar.gz']
expected_rc = 0, cwd = None

    def run_extract(options, expected_rc=None, cwd=None):
        """
        Run extractcode as a plain subprocess. Return rc, stdout, stderr.
        """
        bin_dir = 'Scripts' if on_windows else 'bin'
        # note: this assumes that we are using a standard directory layout as set
        # with the configure script
        cmd_loc = os.path.join(project_root, 'venv', bin_dir, 'extractcode')
>       assert os.path.exists(cmd_loc + ('.exe' if on_windows else ''))
E       AssertionError: assert False
E        +  where False = <function exists at 0x7f7030703920>(('/builddir/build/BUILD/extractcode-31.0.0/venv/bin/extractcode' + ''))
E        +    where <function exists at 0x7f7030703920> = <module 'posixpath' (frozen)>.exists
E        +      where <module 'posixpath' (frozen)> = os.path

tests/test_extractcode_cli.py:38: AssertionError
______________ test_extractcode_command_works_with_relative_paths ______________

    def test_extractcode_command_works_with_relative_paths():
        # The setup is complex because we want to have a relative dir to the base
        # dir where we run tests from, i.e. the git checkout  dir To use relative
        # paths, we use our tmp dir at the root of the code tree
        from os.path import join
        from  commoncode import fileutils
        import extractcode
        import tempfile
        import shutil
    
        try:
            test_file = test_env.get_test_loc('cli/extract_relative_path/basic.zip')
    
            project_tmp = join(project_root, 'tmp')
            fileutils.create_dir(project_tmp)
            temp_rel = tempfile.mkdtemp(dir=project_tmp)
            assert os.path.exists(temp_rel)
    
            relative_dir = temp_rel.replace(project_root, '').strip('\\/')
            shutil.copy(test_file, temp_rel)
    
            test_src_file = join(relative_dir, 'basic.zip')
            test_tgt_dir = join(project_root, test_src_file) + extractcode.EXTRACT_SUFFIX
>           result = run_extract([test_src_file], expected_rc=0, cwd=project_root)

tests/test_extractcode_cli.py:124: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

options = ['tmp/tmpiu9t_zt7/basic.zip'], expected_rc = 0
cwd = '/builddir/build/BUILD/extractcode-31.0.0'

    def run_extract(options, expected_rc=None, cwd=None):
        """
        Run extractcode as a plain subprocess. Return rc, stdout, stderr.
        """
        bin_dir = 'Scripts' if on_windows else 'bin'
        # note: this assumes that we are using a standard directory layout as set
        # with the configure script
        cmd_loc = os.path.join(project_root, 'venv', bin_dir, 'extractcode')
>       assert os.path.exists(cmd_loc + ('.exe' if on_windows else ''))
E       AssertionError: assert False
E        +  where False = <function exists at 0x7f7030703920>(('/builddir/build/BUILD/extractcode-31.0.0/venv/bin/extractcode' + ''))
E        +    where <function exists at 0x7f7030703920> = <module 'posixpath' (frozen)>.exists
E        +      where <module 'posixpath' (frozen)> = os.path

tests/test_extractcode_cli.py:38: AssertionError
__________ test_extractcode_command_works_with_relative_paths_verbose __________

    def test_extractcode_command_works_with_relative_paths_verbose():
        # The setup is a tad complex because we want to have a relative dir
        # to the base dir where we run tests from, i.e. the git checkout dir
        # To use relative paths, we use our tmp dir at the root of the code tree
        from os.path import join
        from  commoncode import fileutils
        import tempfile
        import shutil
    
        try:
            project_tmp = join(project_root, 'tmp')
            fileutils.create_dir(project_tmp)
            test_src_dir = tempfile.mkdtemp(dir=project_tmp).replace(project_root, '').strip('\\/')
            test_file = test_env.get_test_loc('cli/extract_relative_path/basic.zip')
            shutil.copy(test_file, test_src_dir)
            test_src_file = join(test_src_dir, 'basic.zip')
    
>           result = run_extract(['--verbose', test_src_file] , expected_rc=0)

tests/test_extractcode_cli.py:158: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

options = ['--verbose', 'tmp/tmpc_z4ga7z/basic.zip'], expected_rc = 0
cwd = None

    def run_extract(options, expected_rc=None, cwd=None):
        """
        Run extractcode as a plain subprocess. Return rc, stdout, stderr.
        """
        bin_dir = 'Scripts' if on_windows else 'bin'
        # note: this assumes that we are using a standard directory layout as set
        # with the configure script
        cmd_loc = os.path.join(project_root, 'venv', bin_dir, 'extractcode')
>       assert os.path.exists(cmd_loc + ('.exe' if on_windows else ''))
E       AssertionError: assert False
E        +  where False = <function exists at 0x7f7030703920>(('/builddir/build/BUILD/extractcode-31.0.0/venv/bin/extractcode' + ''))
E        +    where <function exists at 0x7f7030703920> = <module 'posixpath' (frozen)>.exists
E        +      where <module 'posixpath' (frozen)> = os.path

tests/test_extractcode_cli.py:38: AssertionError
______ test_usage_and_help_return_a_correct_script_name_on_all_platforms _______

    def test_usage_and_help_return_a_correct_script_name_on_all_platforms():
        options = ['--help']
    
>       result = run_extract(options , expected_rc=0)

tests/test_extractcode_cli.py:177: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

options = ['--help'], expected_rc = 0, cwd = None

    def run_extract(options, expected_rc=None, cwd=None):
        """
        Run extractcode as a plain subprocess. Return rc, stdout, stderr.
        """
        bin_dir = 'Scripts' if on_windows else 'bin'
        # note: this assumes that we are using a standard directory layout as set
        # with the configure script
        cmd_loc = os.path.join(project_root, 'venv', bin_dir, 'extractcode')
>       assert os.path.exists(cmd_loc + ('.exe' if on_windows else ''))
E       AssertionError: assert False
E        +  where False = <function exists at 0x7f7030703920>(('/builddir/build/BUILD/extractcode-31.0.0/venv/bin/extractcode' + ''))
E        +    where <function exists at 0x7f7030703920> = <module 'posixpath' (frozen)>.exists
E        +      where <module 'posixpath' (frozen)> = os.path

tests/test_extractcode_cli.py:38: AssertionError
___ test_extractcode_command_can_extract_archive_with_unicode_names_verbose ____

    def test_extractcode_command_can_extract_archive_with_unicode_names_verbose():
        test_dir = test_env.get_test_loc('cli/unicodearch', copy=True)
>       result = run_extract(['--verbose', test_dir] , expected_rc=0)

tests/test_extractcode_cli.py:195: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

options = ['--verbose', '/tmp/scancode-tk-tests -uejk8_7m/2rcvcl3l/unicodearch']
expected_rc = 0, cwd = None

    def run_extract(options, expected_rc=None, cwd=None):
        """
        Run extractcode as a plain subprocess. Return rc, stdout, stderr.
        """
        bin_dir = 'Scripts' if on_windows else 'bin'
        # note: this assumes that we are using a standard directory layout as set
        # with the configure script
        cmd_loc = os.path.join(project_root, 'venv', bin_dir, 'extractcode')
>       assert os.path.exists(cmd_loc + ('.exe' if on_windows else ''))
E       AssertionError: assert False
E        +  where False = <function exists at 0x7f7030703920>(('/builddir/build/BUILD/extractcode-31.0.0/venv/bin/extractcode' + ''))
E        +    where <function exists at 0x7f7030703920> = <module 'posixpath' (frozen)>.exists
E        +      where <module 'posixpath' (frozen)> = os.path

tests/test_extractcode_cli.py:38: AssertionError
_______ test_extractcode_command_can_extract_archive_with_unicode_names ________

    def test_extractcode_command_can_extract_archive_with_unicode_names():
        test_dir = test_env.get_test_loc('cli/unicodearch', copy=True)
>       run_extract([test_dir] , expected_rc=0)

tests/test_extractcode_cli.py:213: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

options = ['/tmp/scancode-tk-tests -uejk8_7m/3a9hxexv/unicodearch']
expected_rc = 0, cwd = None

    def run_extract(options, expected_rc=None, cwd=None):
        """
        Run extractcode as a plain subprocess. Return rc, stdout, stderr.
        """
        bin_dir = 'Scripts' if on_windows else 'bin'
        # note: this assumes that we are using a standard directory layout as set
        # with the configure script
        cmd_loc = os.path.join(project_root, 'venv', bin_dir, 'extractcode')
>       assert os.path.exists(cmd_loc + ('.exe' if on_windows else ''))
E       AssertionError: assert False
E        +  where False = <function exists at 0x7f7030703920>(('/builddir/build/BUILD/extractcode-31.0.0/venv/bin/extractcode' + ''))
E        +    where <function exists at 0x7f7030703920> = <module 'posixpath' (frozen)>.exists
E        +      where <module 'posixpath' (frozen)> = os.path

tests/test_extractcode_cli.py:38: AssertionError
_________________ test_extractcode_command_can_extract_shallow _________________

    def test_extractcode_command_can_extract_shallow():
        test_dir = test_env.get_test_loc('cli/extract_shallow', copy=True)
>       run_extract(['--shallow', test_dir] , expected_rc=0)

tests/test_extractcode_cli.py:230: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

options = ['--shallow', '/tmp/scancode-tk-tests -uejk8_7m/n1bkdpux/extract_shallow']
expected_rc = 0, cwd = None

    def run_extract(options, expected_rc=None, cwd=None):
        """
        Run extractcode as a plain subprocess. Return rc, stdout, stderr.
        """
        bin_dir = 'Scripts' if on_windows else 'bin'
        # note: this assumes that we are using a standard directory layout as set
        # with the configure script
        cmd_loc = os.path.join(project_root, 'venv', bin_dir, 'extractcode')
>       assert os.path.exists(cmd_loc + ('.exe' if on_windows else ''))
E       AssertionError: assert False
E        +  where False = <function exists at 0x7f7030703920>(('/builddir/build/BUILD/extractcode-31.0.0/venv/bin/extractcode' + ''))
E        +    where <function exists at 0x7f7030703920> = <module 'posixpath' (frozen)>.exists
E        +      where <module 'posixpath' (frozen)> = os.path

tests/test_extractcode_cli.py:38: AssertionError
_____________________ test_extractcode_command_can_ignore ______________________

    def test_extractcode_command_can_ignore():
        test_dir = test_env.get_test_loc('cli/extract_ignore', copy=True)
>       run_extract(['--ignore', '*.tar', test_dir] , expected_rc=0)

tests/test_extractcode_cli.py:248: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

options = ['--ignore', '*.tar', '/tmp/scancode-tk-tests -uejk8_7m/bs_94w2l/extract_ignore']
expected_rc = 0, cwd = None

    def run_extract(options, expected_rc=None, cwd=None):
        """
        Run extractcode as a plain subprocess. Return rc, stdout, stderr.
        """
        bin_dir = 'Scripts' if on_windows else 'bin'
        # note: this assumes that we are using a standard directory layout as set
        # with the configure script
        cmd_loc = os.path.join(project_root, 'venv', bin_dir, 'extractcode')
>       assert os.path.exists(cmd_loc + ('.exe' if on_windows else ''))
E       AssertionError: assert False
E        +  where False = <function exists at 0x7f7030703920>(('/builddir/build/BUILD/extractcode-31.0.0/venv/bin/extractcode' + ''))
E        +    where <function exists at 0x7f7030703920> = <module 'posixpath' (frozen)>.exists
E        +      where <module 'posixpath' (frozen)> = os.path

tests/test_extractcode_cli.py:38: AssertionError
_ test_extractcode_command_does_not_crash_with_replace_originals_and_corrupted_archives _

    def test_extractcode_command_does_not_crash_with_replace_originals_and_corrupted_archives():
        test_dir = test_env.get_test_loc('cli/replace-originals', copy=True)
>       result = run_extract(['--replace-originals', '--verbose', test_dir] , expected_rc=1)

tests/test_extractcode_cli.py:266: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

options = ['--replace-originals', '--verbose', '/tmp/scancode-tk-tests -uejk8_7m/ldztqpv3/replace-originals']
expected_rc = 1, cwd = None

    def run_extract(options, expected_rc=None, cwd=None):
        """
        Run extractcode as a plain subprocess. Return rc, stdout, stderr.
        """
        bin_dir = 'Scripts' if on_windows else 'bin'
        # note: this assumes that we are using a standard directory layout as set
        # with the configure script
        cmd_loc = os.path.join(project_root, 'venv', bin_dir, 'extractcode')
>       assert os.path.exists(cmd_loc + ('.exe' if on_windows else ''))
E       AssertionError: assert False
E        +  where False = <function exists at 0x7f7030703920>(('/builddir/build/BUILD/extractcode-31.0.0/venv/bin/extractcode' + ''))
E        +    where <function exists at 0x7f7030703920> = <module 'posixpath' (frozen)>.exists
E        +      where <module 'posixpath' (frozen)> = os.path

tests/test_extractcode_cli.py:38: AssertionError
__________________ test_extractcode_command_can_extract_nuget __________________

    @pytest.mark.skipif(on_windows, reason='FIXME: this test fails on Windows until we have support for long file names.')
    def test_extractcode_command_can_extract_nuget():
        test_dir = test_env.get_test_loc('cli/extract_nuget', copy=True)
>       result = run_extract(['--verbose', test_dir])

tests/test_extractcode_cli.py:283: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

options = ['--verbose', '/tmp/scancode-tk-tests -uejk8_7m/zcx7geku/extract_nuget']
expected_rc = None, cwd = None

    def run_extract(options, expected_rc=None, cwd=None):
        """
        Run extractcode as a plain subprocess. Return rc, stdout, stderr.
        """
        bin_dir = 'Scripts' if on_windows else 'bin'
        # note: this assumes that we are using a standard directory layout as set
        # with the configure script
        cmd_loc = os.path.join(project_root, 'venv', bin_dir, 'extractcode')
>       assert os.path.exists(cmd_loc + ('.exe' if on_windows else ''))
E       AssertionError: assert False
E        +  where False = <function exists at 0x7f7030703920>(('/builddir/build/BUILD/extractcode-31.0.0/venv/bin/extractcode' + ''))
E        +    where <function exists at 0x7f7030703920> = <module 'posixpath' (frozen)>.exists
E        +      where <module 'posixpath' (frozen)> = os.path

tests/test_extractcode_cli.py:38: AssertionError