How to use _get_os_environ method in tox

Best Python code snippet using tox_python

venv.py

Source:venv.py

...271    def _needs_reinstall(self, setupdir, action):272        setup_py = setupdir.join("setup.py")273        setup_cfg = setupdir.join("setup.cfg")274        args = [self.envconfig.envpython, str(setup_py), "--name"]275        env = self._get_os_environ()276        output = action.popen(277            args, cwd=setupdir, redirect=False, returnout=True, env=env, capture_err=False278        )279        name = next(280            (i for i in output.split("\n") if i and not i.startswith("pydev debugger:")), ""281        )282        args = [283            self.envconfig.envpython,284            "-c",285            "import sys;  import json; print(json.dumps(sys.path))",286        ]287        out = action.popen(args, redirect=False, returnout=True, env=env)288        try:289            sys_path = json.loads(out)290        except ValueError:291            sys_path = []292        egg_info_fname = ".".join((to_filename(name), "egg-info"))293        for d in reversed(sys_path):294            egg_info = py.path.local(d).join(egg_info_fname)295            if egg_info.check():296                break297        else:298            return True299        needs_reinstall = any(300            conf_file.check() and conf_file.mtime() > egg_info.mtime()301            for conf_file in (setup_py, setup_cfg)302        )303        # Ensure the modification time of the egg-info folder is updated so we304        # won't need to do this again.305        # TODO(stephenfin): Remove once the minimum version of setuptools is306        # high enough to include https://github.com/pypa/setuptools/pull/1427/307        if needs_reinstall:308            egg_info.setmtime()309        return needs_reinstall310    def install_pkg(self, dir, action, name, is_develop=False):311        assert action is not None312        if getattr(self, "just_created", False):313            action.setactivity(name, dir)314            self.finish()315            pip_flags = ["--exists-action", "w"]316        else:317            if is_develop and not self._needs_reinstall(dir, action):318                action.setactivity("{}-noop".format(name), dir)319                return320            action.setactivity("{}-nodeps".format(name), dir)321            pip_flags = ["--no-deps"] + ([] if is_develop else ["-U"])322        pip_flags.extend(["-v"] * min(3, reporter.verbosity() - 2))323        if self.envconfig.extras:324            dir += "[{}]".format(",".join(self.envconfig.extras))325        target = [dir]326        if is_develop:327            target.insert(0, "-e")328        self._install(target, extraopts=pip_flags, action=action)329    def developpkg(self, setupdir, action):330        self.install_pkg(setupdir, action, "develop-inst", is_develop=True)331    def installpkg(self, sdistpath, action):332        self.install_pkg(sdistpath, action, "inst")333    def _installopts(self, indexserver):334        options = []335        if indexserver:336            options += ["-i", indexserver]337        if self.envconfig.pip_pre:338            options.append("--pre")339        return options340    def run_install_command(self, packages, action, options=()):341        def expand(val):342            # expand an install command343            if val == "{packages}":344                for package in packages:345                    yield package346            elif val == "{opts}":347                for opt in options:348                    yield opt349            else:350                yield val351        cmd = list(chain.from_iterable(expand(val) for val in self.envconfig.install_command))352        env = self._get_os_environ()353        self.ensure_pip_os_environ_ok(env)354        old_stdout = sys.stdout355        sys.stdout = codecs.getwriter("utf8")(sys.stdout)356        try:357            self._pcall(358                cmd,359                cwd=self.envconfig.config.toxinidir,360                action=action,361                redirect=reporter.verbosity() < reporter.Verbosity.DEBUG,362                env=env,363            )364        finally:365            sys.stdout = old_stdout366    def ensure_pip_os_environ_ok(self, env):367        for key in ("PIP_RESPECT_VIRTUALENV", "PIP_REQUIRE_VIRTUALENV", "__PYVENV_LAUNCHER__"):368            env.pop(key, None)369        if all("PYTHONPATH" not in i for i in (self.envconfig.passenv, self.envconfig.setenv)):370            # If PYTHONPATH not explicitly asked for, remove it.371            if "PYTHONPATH" in env:372                if sys.version_info < (3, 4) or bool(env["PYTHONPATH"]):373                    # https://docs.python.org/3/whatsnew/3.4.html#changes-in-python-command-behavior374                    # In a posix shell, setting the PATH environment variable to an empty value is375                    # equivalent to not setting it at all.376                    reporter.warning(377                        "Discarding $PYTHONPATH from environment, to override "378                        "specify PYTHONPATH in 'passenv' in your configuration."379                    )380                env.pop("PYTHONPATH")381        # installing packages at user level may mean we're not installing inside the venv382        env["PIP_USER"] = "0"383        # installing without dependencies may lead to broken packages384        env["PIP_NO_DEPS"] = "0"385    def _install(self, deps, extraopts=None, action=None):386        if not deps:387            return388        d = {}389        ixservers = []390        for dep in deps:391            if isinstance(dep, (str, py.path.local)):392                dep = DepConfig(str(dep), None)393            assert isinstance(dep, DepConfig), dep394            if dep.indexserver is None:395                ixserver = self.envconfig.config.indexserver["default"]396            else:397                ixserver = dep.indexserver398            d.setdefault(ixserver, []).append(dep.name)399            if ixserver not in ixservers:400                ixservers.append(ixserver)401            assert ixserver.url is None or isinstance(ixserver.url, str)402        for ixserver in ixservers:403            packages = d[ixserver]404            options = self._installopts(ixserver.url)405            if extraopts:406                options.extend(extraopts)407            self.run_install_command(packages=packages, options=options, action=action)408    def _get_os_environ(self, is_test_command=False):409        if is_test_command:410            # for executing tests we construct a clean environment411            env = {}412            for env_key in self.envconfig.passenv:413                if env_key in os.environ:414                    env[env_key] = os.environ[env_key]415        else:416            # for executing non-test commands we use the full417            # invocation environment418            env = os.environ.copy()419        # in any case we honor per-testenv setenv configuration420        env.update(self.envconfig.setenv)421        env["VIRTUAL_ENV"] = str(self.path)422        return env423    def test(424        self,425        redirect=False,426        name="run-test",427        commands=None,428        ignore_outcome=None,429        ignore_errors=None,430        display_hash_seed=False,431    ):432        if commands is None:433            commands = self.envconfig.commands434        if ignore_outcome is None:435            ignore_outcome = self.envconfig.ignore_outcome436        if ignore_errors is None:437            ignore_errors = self.envconfig.ignore_errors438        with self.new_action(name) as action:439            cwd = self.envconfig.changedir440            if display_hash_seed:441                env = self._get_os_environ(is_test_command=True)442                # Display PYTHONHASHSEED to assist with reproducibility.443                action.setactivity(name, "PYTHONHASHSEED={!r}".format(env.get("PYTHONHASHSEED")))444            for i, argv in enumerate(commands):445                # have to make strings as _pcall changes argv[0] to a local()446                # happens if the same environment is invoked twice447                message = "commands[{}] | {}".format(448                    i, " ".join([pipes.quote(str(x)) for x in argv])449                )450                action.setactivity(name, message)451                # check to see if we need to ignore the return code452                # if so, we need to alter the command line arguments453                if argv[0].startswith("-"):454                    ignore_ret = True455                    if argv[0] == "-":456                        del argv[0]457                    else:458                        argv[0] = argv[0].lstrip("-")459                else:460                    ignore_ret = False461                try:462                    self._pcall(463                        argv,464                        cwd=cwd,465                        action=action,466                        redirect=redirect,467                        ignore_ret=ignore_ret,468                        is_test_command=True,469                    )470                except tox.exception.InvocationError as err:471                    if ignore_outcome:472                        msg = "command failed but result from testenv is ignored\ncmd:"473                        reporter.warning("{} {}".format(msg, err))474                        self.status = "ignored failed command"475                        continue  # keep processing commands476                    reporter.error(str(err))477                    self.status = "commands failed"478                    if not ignore_errors:479                        break  # Don't process remaining commands480                except KeyboardInterrupt:481                    self.status = "keyboardinterrupt"482                    raise483    def _pcall(484        self,485        args,486        cwd,487        venv=True,488        is_test_command=False,489        action=None,490        redirect=True,491        ignore_ret=False,492        returnout=False,493        env=None,494    ):495        if env is None:496            env = self._get_os_environ(is_test_command=is_test_command)497        # construct environment variables498        env.pop("VIRTUALENV_PYTHON", None)499        bin_dir = str(self.envconfig.envbindir)500        env["PATH"] = os.pathsep.join([bin_dir, os.environ["PATH"]])501        reporter.verbosity2("setting PATH={}".format(env["PATH"]))502        # get command503        args[0] = self.getcommandpath(args[0], venv, cwd)504        if sys.platform != "win32" and "TOX_LIMITED_SHEBANG" in os.environ:505            args = prepend_shebang_interpreter(args)506        cwd.ensure(dir=1)  # ensure the cwd exists507        return action.popen(508            args,509            cwd=cwd,510            env=env,...

tox_poetry.py

Source:tox_poetry.py

...34    for extra in venv.envconfig.extras:35        cmd += ['-E', extra]36    action.setactivity('installdeps', ' '.join(cmd))37    # Force UTF-8 encoding, since tox log parser epxects this (~ tox\action.py", line 128, in popen).38    env = venv._get_os_environ()  # pylint: disable=protected-access39    env["PYTHONIOENCODING"] = "UTF-8"40    venv._pcall(  # pylint: disable=protected-access41        cmd,42        action=action,43        cwd=project_root,44        env=env,...

session.py

Source:session.py

...22               returnout=False):23        cwd.ensure(dir=1)24        args[0] = self.getcommandpath(args[0], venv, cwd)25        if hasattr(self, '_get_os_environ'):26            environ = self._get_os_environ(is_test_command=is_test_command)27        else:28            environ = self._getenv(testcommand=testcommand)29        return action.popen(args, cwd=cwd, env=environ,30                            redirect=redirect, ignore_ret=ignore_ret)31    def is_allowed_external(self, _):32        return True33def main(args=None):34    try:35        config = prepare(args)36        retcode = TaxSession(config).runcommand()37        raise SystemExit(retcode)38    except KeyboardInterrupt:...

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