0.6.5: pytest based test suite is failing

[kloczek]

+ /usr/bin/python3 -Bm pytest -ra
=========================================================================== test session starts ============================================================================
platform linux -- Python 3.8.9, pytest-6.2.4, py-1.10.0, pluggy-0.13.1
rootdir: /home/tkloczko/rpmbuild/BUILD/python-slip-0.6.5
plugins: forked-1.3.0, shutil-1.7.0, virtualenv-1.7.0, expect-1.1.0, cov-2.11.1, httpbin-1.0.0, xdist-2.2.1, flake8-1.0.7, timeout-1.4.2, betamax-0.8.1, pyfakefs-4.4.0, freezegun-0.4.2, cases-3.4.6, case-1.5.3, isort-1.3.0, aspectlib-1.5.2, asyncio-0.15.1, toolbox-0.5, xprocess-0.17.1, flaky-3.7.0, requests-mock-1.9.2, aiohttp-0.3.0, checkdocs-2.7.0, mock-3.6.1, hypothesis-6.13.1
collected 1 item

. F                                                                                                                                                                  [100%]

================================================================================= FAILURES =================================================================================
_______________________________________________________________________________ test session _______________________________________________________________________________

cls = <class '_pytest.runner.CallInfo'>, func = <function call_runtest_hook.<locals>.<lambda> at 0x7f3189cb59d0>, when = 'call'
reraise = (<class '_pytest.outcomes.Exit'>, <class 'KeyboardInterrupt'>)

    @classmethod
    def from_call(
        cls,
        func: "Callable[[], TResult]",
        when: "Literal['collect', 'setup', 'call', 'teardown']",
        reraise: Optional[
            Union[Type[BaseException], Tuple[Type[BaseException], ...]]
        ] = None,
    ) -> "CallInfo[TResult]":
        excinfo = None
        start = timing.time()
        precise_start = timing.perf_counter()
        try:
>           result: Optional[TResult] = func()

/usr/lib/python3.8/site-packages/_pytest/runner.py:311:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

>       lambda: ihook(item=item, **kwds), when=when, reraise=reraise
    )

/usr/lib/python3.8/site-packages/_pytest/runner.py:255:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <_HookCaller 'pytest_runtest_call'>, args = (), kwargs = {'item': <CheckdocsItem project>}, notincall = set()

    def __call__(self, *args, **kwargs):
        if args:
            raise TypeError("hook calling supports only keyword arguments")
        assert not self.is_historic()
        if self.spec and self.spec.argnames:
            notincall = (
                set(self.spec.argnames) - set(["__multicall__"]) - set(kwargs.keys())
            )
            if notincall:
                warnings.warn(
                    "Argument(s) {} which are declared in the hookspec "
                    "can not be found in this hook call".format(tuple(notincall)),
                    stacklevel=2,
                )
>       return self._hookexec(self, self.get_hookimpls(), kwargs)

/usr/lib/python3.8/site-packages/pluggy/hooks.py:286:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <_pytest.config.PytestPluginManager object at 0x7f33227f5f40>, hook = <_HookCaller 'pytest_runtest_call'>
methods = [<HookImpl plugin_name='runner', plugin=<module '_pytest.runner' from '/usr/lib/python3.8/site-packages/_pytest/runner...=None>>, <HookImpl plugin_name='logging-plugin', plugin=<_pytest.logging.LoggingPlugin object at 0x7f3189c15d90>>, ...]
kwargs = {'item': <CheckdocsItem project>}

    def _hookexec(self, hook, methods, kwargs):
        # called from all hookcaller instances.
        # enable_tracing will set its own wrapping function at self._inner_hookexec
>       return self._inner_hookexec(hook, methods, kwargs)

/usr/lib/python3.8/site-packages/pluggy/manager.py:93:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

hook = <_HookCaller 'pytest_runtest_call'>
methods = [<HookImpl plugin_name='runner', plugin=<module '_pytest.runner' from '/usr/lib/python3.8/site-packages/_pytest/runner...=None>>, <HookImpl plugin_name='logging-plugin', plugin=<_pytest.logging.LoggingPlugin object at 0x7f3189c15d90>>, ...]
kwargs = {'item': <CheckdocsItem project>}

>   self._inner_hookexec = lambda hook, methods, kwargs: hook.multicall(
        methods,
        kwargs,
        firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
    )

/usr/lib/python3.8/site-packages/pluggy/manager.py:84:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

hook_impls = [<HookImpl plugin_name='runner', plugin=<module '_pytest.runner' from '/usr/lib/python3.8/site-packages/_pytest/runner...=None>>, <HookImpl plugin_name='logging-plugin', plugin=<_pytest.logging.LoggingPlugin object at 0x7f3189c15d90>>, ...]
caller_kwargs = {'item': <CheckdocsItem project>}, firstresult = False

    def _multicall(hook_impls, caller_kwargs, firstresult=False):
        """Execute a call into multiple python functions/methods and return the
        result(s).

        ``caller_kwargs`` comes from _HookCaller.__call__().
        """
        __tracebackhide__ = True
        results = []
        excinfo = None
        try:  # run impl and wrapper setup functions in a loop
            teardowns = []
            try:
                for hook_impl in reversed(hook_impls):
                    try:
                        args = [caller_kwargs[argname] for argname in hook_impl.argnames]
                    except KeyError:
                        for argname in hook_impl.argnames:
                            if argname not in caller_kwargs:
                                raise HookCallError(
                                    "hook call must provide argument %r" % (argname,)
                                )

                    if hook_impl.hookwrapper:
                        try:
                            gen = hook_impl.function(*args)
                            next(gen)  # first yield
                            teardowns.append(gen)
                        except StopIteration:
                            _raise_wrapfail(gen, "did not yield")
                    else:
                        res = hook_impl.function(*args)
                        if res is not None:
                            results.append(res)
                            if firstresult:  # halt further impl calls
                                break
            except BaseException:
                excinfo = sys.exc_info()
        finally:
            if firstresult:  # first result hooks return a single value
                outcome = _Result(results[0] if results else None, excinfo)
            else:
                outcome = _Result(results, excinfo)

            # run all wrapper post-yield blocks
            for gen in reversed(teardowns):
                try:
                    gen.send(outcome)
                    _raise_wrapfail(gen, "has second yield")
                except StopIteration:
                    pass

>           return outcome.get_result()

/usr/lib/python3.8/site-packages/pluggy/callers.py:208:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <pluggy.callers._Result object at 0x7f3189be2520>

    def get_result(self):
        """Get the result(s) for this hook call.

        If the hook was marked as a ``firstresult`` only a single value
        will be returned otherwise a list of results.
        """
        __tracebackhide__ = True
        if self._excinfo is None:
            return self._result
        else:
            ex = self._excinfo
            if _py3:
>               raise ex[1].with_traceback(ex[2])

/usr/lib/python3.8/site-packages/pluggy/callers.py:80:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

hook_impls = [<HookImpl plugin_name='runner', plugin=<module '_pytest.runner' from '/usr/lib/python3.8/site-packages/_pytest/runner...=None>>, <HookImpl plugin_name='logging-plugin', plugin=<_pytest.logging.LoggingPlugin object at 0x7f3189c15d90>>, ...]
caller_kwargs = {'item': <CheckdocsItem project>}, firstresult = False

    def _multicall(hook_impls, caller_kwargs, firstresult=False):
        """Execute a call into multiple python functions/methods and return the
        result(s).

        ``caller_kwargs`` comes from _HookCaller.__call__().
        """
        __tracebackhide__ = True
        results = []
        excinfo = None
        try:  # run impl and wrapper setup functions in a loop
            teardowns = []
            try:
                for hook_impl in reversed(hook_impls):
                    try:
                        args = [caller_kwargs[argname] for argname in hook_impl.argnames]
                    except KeyError:
                        for argname in hook_impl.argnames:
                            if argname not in caller_kwargs:
                                raise HookCallError(
                                    "hook call must provide argument %r" % (argname,)
                                )

                    if hook_impl.hookwrapper:
                        try:
                            gen = hook_impl.function(*args)
                            next(gen)  # first yield
                            teardowns.append(gen)
                        except StopIteration:
                            _raise_wrapfail(gen, "did not yield")
                    else:
>                       res = hook_impl.function(*args)

/usr/lib/python3.8/site-packages/pluggy/callers.py:187:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

item = <CheckdocsItem project>

    def pytest_runtest_call(item: Item) -> None:
        _update_current_test_var(item, "call")
        try:
            del sys.last_type
            del sys.last_value
            del sys.last_traceback
        except AttributeError:
            pass
        try:
            item.runtest()
        except Exception as e:
            # Store trace info to allow postmortem debugging
            sys.last_type = type(e)
            sys.last_value = e
            assert e.__traceback__ is not None
            # Skip *this* frame
            sys.last_traceback = e.__traceback__.tb_next
>           raise e

/usr/lib/python3.8/site-packages/_pytest/runner.py:170:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

item = <CheckdocsItem project>

    def pytest_runtest_call(item: Item) -> None:
        _update_current_test_var(item, "call")
        try:
            del sys.last_type
            del sys.last_value
            del sys.last_traceback
        except AttributeError:
            pass
        try:
>           item.runtest()

/usr/lib/python3.8/site-packages/_pytest/runner.py:162:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <CheckdocsItem project>

    def runtest(self):
>       desc = self.get_long_description()

/usr/lib/python3.8/site-packages/pytest_checkdocs/__init__.py:29:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <CheckdocsItem project>

    def get_long_description(self):
>       return Description.from_md(ensure_clean(pep517.meta.load('.').metadata))

/usr/lib/python3.8/site-packages/pytest_checkdocs/__init__.py:60:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

root = '.'

    def load(root):
        """
        Given a source directory (root) of a package,
        return an importlib.metadata.Distribution object
        with metadata build from that package.
        """
        root = os.path.expanduser(root)
        system = compat_system(root)
        builder = functools.partial(build, source_dir=root, system=system)
>       path = Path(build_as_zip(builder))

/usr/lib/python3.8/site-packages/pep517/meta.py:71:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

builder = functools.partial(<function build at 0x7f318a6aa3a0>, source_dir='.', system={'build-backend': 'setuptools.build_meta:__legacy__', 'requires': ['setuptools', 'wheel']})

    def build_as_zip(builder=build):
        with tempdir() as out_dir:
>           builder(dest=out_dir)

/usr/lib/python3.8/site-packages/pep517/meta.py:58:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

source_dir = '.', dest = '/tmp/tmpb4318ybp', system = {'build-backend': 'setuptools.build_meta:__legacy__', 'requires': ['setuptools', 'wheel']}

    def build(source_dir='.', dest=None, system=None):
        system = system or load_system(source_dir)
        dest = os.path.join(source_dir, dest or 'dist')
        mkdir_p(dest)
        validate_system(system)
        hooks = Pep517HookCaller(
            source_dir, system['build-backend'], system.get('backend-path')
        )

        with hooks.subprocess_runner(quiet_subprocess_runner):
            with BuildEnvironment() as env:
                env.pip_install(system['requires'])
>               _prep_meta(hooks, env, dest)

/usr/lib/python3.8/site-packages/pep517/meta.py:53:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

hooks = <pep517.wrappers.Pep517HookCaller object at 0x7f3189be25e0>, env = <pep517.envbuild.BuildEnvironment object at 0x7f3189be2040>, dest = '/tmp/tmpb4318ybp'

    def _prep_meta(hooks, env, dest):
        reqs = hooks.get_requires_for_build_wheel({})
        log.info('Got build requires: %s', reqs)

        env.pip_install(reqs)
        log.info('Installed dynamic build dependencies')

        with tempdir() as td:
            log.info('Trying to build metadata in %s', td)
>           filename = hooks.prepare_metadata_for_build_wheel(td, {})

/usr/lib/python3.8/site-packages/pep517/meta.py:36:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <pep517.wrappers.Pep517HookCaller object at 0x7f3189be25e0>, metadata_directory = '/tmp/tmp5jx3n2r3', config_settings = {}, _allow_fallback = True

    def prepare_metadata_for_build_wheel(
            self, metadata_directory, config_settings=None,
            _allow_fallback=True):
        """Prepare a ``*.dist-info`` folder with metadata for this project.

        Returns the name of the newly created folder.

        If the build backend defines a hook with this name, it will be called
        in a subprocess. If not, the backend will be asked to build a wheel,
        and the dist-info extracted from that (unless _allow_fallback is
        False).
        """
>       return self._call_hook('prepare_metadata_for_build_wheel', {
            'metadata_directory': abspath(metadata_directory),
            'config_settings': config_settings,
            '_allow_fallback': _allow_fallback,
        })

/usr/lib/python3.8/site-packages/pep517/wrappers.py:184:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <pep517.wrappers.Pep517HookCaller object at 0x7f3189be25e0>, hook_name = 'prepare_metadata_for_build_wheel'
kwargs = {'_allow_fallback': True, 'config_settings': {}, 'metadata_directory': '/tmp/tmp5jx3n2r3'}

    def _call_hook(self, hook_name, kwargs):
        # On Python 2, pytoml returns Unicode values (which is correct) but the
        # environment passed to check_call needs to contain string values. We
        # convert here by encoding using ASCII (the backend can only contain
        # letters, digits and _, . and : characters, and will be used as a
        # Python identifier, so non-ASCII content is wrong on Python 2 in
        # any case).
        # For backend_path, we use sys.getfilesystemencoding.
        if sys.version_info[0] == 2:
            build_backend = self.build_backend.encode('ASCII')
        else:
            build_backend = self.build_backend
        extra_environ = {'PEP517_BUILD_BACKEND': build_backend}

        if self.backend_path:
            backend_path = os.pathsep.join(self.backend_path)
            if sys.version_info[0] == 2:
                backend_path = backend_path.encode(sys.getfilesystemencoding())
            extra_environ['PEP517_BACKEND_PATH'] = backend_path

        with tempdir() as td:
            hook_input = {'kwargs': kwargs}
            compat.write_json(hook_input, pjoin(td, 'input.json'),
                              indent=2)

            # Run the hook in a subprocess
            with _in_proc_script_path() as script:
                python = self.python_executable
>               self._subprocess_runner(
                    [python, abspath(str(script)), hook_name, td],
                    cwd=self.source_dir,
                    extra_environ=extra_environ
                )

/usr/lib/python3.8/site-packages/pep517/wrappers.py:265:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

cmd = ['/usr/bin/python3', '/usr/lib/python3.8/site-packages/pep517/in_process/_in_process.py', 'prepare_metadata_for_build_wheel', '/tmp/tmpv63hb2qt']
cwd = '/home/tkloczko/rpmbuild/BUILD/python-slip-0.6.5', extra_environ = {'PEP517_BUILD_BACKEND': 'setuptools.build_meta:__legacy__'}

    def quiet_subprocess_runner(cmd, cwd=None, extra_environ=None):
        """A method of calling the wrapper subprocess while suppressing output."""
        env = os.environ.copy()
        if extra_environ:
            env.update(extra_environ)

>       check_output(cmd, cwd=cwd, env=env, stderr=STDOUT)

/usr/lib/python3.8/site-packages/pep517/wrappers.py:75:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

timeout = None
popenargs = (['/usr/bin/python3', '/usr/lib/python3.8/site-packages/pep517/in_process/_in_process.py', 'prepare_metadata_for_build_wheel', '/tmp/tmpv63hb2qt'],)
kwargs = {'cwd': '/home/tkloczko/rpmbuild/BUILD/python-slip-0.6.5', 'env': {'BASH_FUNC_which%%': '() {  ( alias;\n eval ${which...ions -ffunction-sections -flto=auto -flto-partition=none', 'CONFIG_SITE': 'NONE', 'CVS_RSH': 'ssh', ...}, 'stderr': -2}

    def check_output(*popenargs, timeout=None, **kwargs):
        r"""Run command with arguments and return its output.

        If the exit code was non-zero it raises a CalledProcessError.  The
        CalledProcessError object will have the return code in the returncode
        attribute and output in the output attribute.

        The arguments are the same as for the Popen constructor.  Example:

        >>> check_output(["ls", "-l", "/dev/null"])
        b'crw-rw-rw- 1 root root 1, 3 Oct 18  2007 /dev/null\n'

        The stdout argument is not allowed as it is used internally.
        To capture standard error in the result, use stderr=STDOUT.

        >>> check_output(["/bin/sh", "-c",
        ...               "ls -l non_existent_file ; exit 0"],
        ...              stderr=STDOUT)
        b'ls: non_existent_file: No such file or directory\n'

        There is an additional optional argument, "input", allowing you to
        pass a string to the subprocess's stdin.  If you use this argument
        you may not also use the Popen constructor's "stdin" argument, as
        it too will be used internally.  Example:

        >>> check_output(["sed", "-e", "s/foo/bar/"],
        ...              input=b"when in the course of fooman events\n")
        b'when in the course of barman events\n'

        By default, all communication is in bytes, and therefore any "input"
        should be bytes, and the return value will be bytes.  If in text mode,
        any "input" should be a string, and the return value will be a string
        decoded according to locale encoding, or by "encoding" if set. Text mode
        is triggered by setting any of text, encoding, errors or universal_newlines.
        """
        if 'stdout' in kwargs:
            raise ValueError('stdout argument not allowed, it will be overridden.')

        if 'input' in kwargs and kwargs['input'] is None:
            # Explicitly passing input=None was previously equivalent to passing an
            # empty string. That is maintained here for backwards compatibility.
            if kwargs.get('universal_newlines') or kwargs.get('text'):
                empty = ''
            else:
                empty = b''
            kwargs['input'] = empty

>       return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
                   **kwargs).stdout

/usr/lib64/python3.8/subprocess.py:415:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

input = None, capture_output = False, timeout = None, check = True
popenargs = (['/usr/bin/python3', '/usr/lib/python3.8/site-packages/pep517/in_process/_in_process.py', 'prepare_metadata_for_build_wheel', '/tmp/tmpv63hb2qt'],)
kwargs = {'cwd': '/home/tkloczko/rpmbuild/BUILD/python-slip-0.6.5', 'env': {'BASH_FUNC_which%%': '() {  ( alias;\n eval ${which...n-sections -flto=auto -flto-partition=none', 'CONFIG_SITE': 'NONE', 'CVS_RSH': 'ssh', ...}, 'stderr': -2, 'stdout': -1}
process = <subprocess.Popen object at 0x7f3189b84be0>
stdout = b'running dist_info\ncreating /tmp/tmp5jx3n2r3/slip.egg-info\nwriting /tmp/tmp5jx3n2r3/slip.egg-info/PKG-INFO\nwriting...tools/build_meta.py", line 182, in prepare_metadata_for_build_wheel\n    assert len(dist_infos) == 1\nAssertionError\n'
stderr = None, retcode = 1

    def run(*popenargs,
            input=None, capture_output=False, timeout=None, check=False, **kwargs):
        """Run command with arguments and return a CompletedProcess instance.

        The returned instance will have attributes args, returncode, stdout and
        stderr. By default, stdout and stderr are not captured, and those attributes
        will be None. Pass stdout=PIPE and/or stderr=PIPE in order to capture them.

        If check is True and the exit code was non-zero, it raises a
        CalledProcessError. The CalledProcessError object will have the return code
        in the returncode attribute, and output & stderr attributes if those streams
        were captured.

        If timeout is given, and the process takes too long, a TimeoutExpired
        exception will be raised.

        There is an optional argument "input", allowing you to
        pass bytes or a string to the subprocess's stdin.  If you use this argument
        you may not also use the Popen constructor's "stdin" argument, as
        it will be used internally.

        By default, all communication is in bytes, and therefore any "input" should
        be bytes, and the stdout and stderr will be bytes. If in text mode, any
        "input" should be a string, and stdout and stderr will be strings decoded
        according to locale encoding, or by "encoding" if set. Text mode is
        triggered by setting any of text, encoding, errors or universal_newlines.

        The other arguments are the same as for the Popen constructor.
        """
        if input is not None:
            if kwargs.get('stdin') is not None:
                raise ValueError('stdin and input arguments may not both be used.')
            kwargs['stdin'] = PIPE

        if capture_output:
            if kwargs.get('stdout') is not None or kwargs.get('stderr') is not None:
                raise ValueError('stdout and stderr arguments may not be used '
                                 'with capture_output.')
            kwargs['stdout'] = PIPE
            kwargs['stderr'] = PIPE

        with Popen(*popenargs, **kwargs) as process:
            try:
                stdout, stderr = process.communicate(input, timeout=timeout)
            except TimeoutExpired as exc:
                process.kill()
                if _mswindows:
                    # Windows accumulates the output in a single blocking
                    # read() call run on child threads, with the timeout
                    # being done in a join() on those threads.  communicate()
                    # _after_ kill() is required to collect that and add it
                    # to the exception.
                    exc.stdout, exc.stderr = process.communicate()
                else:
                    # POSIX _communicate already populated the output so
                    # far into the TimeoutExpired exception.
                    process.wait()
                raise
            except:  # Including KeyboardInterrupt, communicate handled that.
                process.kill()
                # We don't call process.wait() as .__exit__ does that for us.
                raise
            retcode = process.poll()
            if check and retcode:
>               raise CalledProcessError(retcode, process.args,
                                         output=stdout, stderr=stderr)
E               subprocess.CalledProcessError: Command '['/usr/bin/python3', '/usr/lib/python3.8/site-packages/pep517/in_process/_in_process.py', 'prepare_metadata_for_build_wheel', '/tmp/tmpv63hb2qt']' returned non-zero exit status 1.

/usr/lib64/python3.8/subprocess.py:516: CalledProcessError
========================================================================= short test summary info ==========================================================================
FAILED ::project - subprocess.CalledProcessError: Command '['/usr/bin/python3', '/usr/lib/python3.8/site-packages/pep517/in_process/_in_process.py', 'prepare_metadata_fo...
============================================================================ 1 failed in 6.71s =============================================================================

[nphilipp]

I wonder what it's trying to do here—python-slip doesn't have a test suite. As it is, the project is pretty much unmaintained (and would need considerable effort to be "brought into the present", just see e.g. the Makefile generating a non-setuptools setup.py from a template).

[kloczek]

If there is no dedicated pytest units still is trying to filter and scan code to pass them over some installed filters. Above output is from env where I have installed Everything™️ so some of those reports may be false positive or may e result of some bugs in those extensions. Simple not to many developers are running pytest in such reach env.

From that point of view do not take that output as strict bug report in slip module code 😊 If you don't see anything suspicious feel free just close this ticket.

[nphilipp]

Yeah, I couldn't reproduce the issue, probably because I don't have everything installed. :wink:

I'm curious what's failing, but without being able to reproduce I'll close the ticket. Thanks for the report nevertheless!

[kloczek]

Just looking only on messages can you only asses could it be sometning which may point on some your module or some used by me extensions issue?