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How to use _parse_list method in localstack

Best Python code snippet using localstack_python

config.py

Source:config.py

...177        else:178            setter(value)179        self.set_options.append(option_name)180    @classmethod181    def _parse_list(cls, value, separator=','):182        """Represents value as a list.183        Value is split either by separator (defaults to comma) or by lines.184        :param value:185        :param separator: List items separator character.186        :rtype: list187        """188        if isinstance(value, list):  # _get_parser_compound case189            return value190        if '\n' in value:191            value = value.splitlines()192        else:193            value = value.split(separator)194        return [chunk.strip() for chunk in value if chunk.strip()]195    @classmethod196    def _parse_dict(cls, value):197        """Represents value as a dict.198        :param value:199        :rtype: dict200        """201        separator = '='202        result = {}203        for line in cls._parse_list(value):204            key, sep, val = line.partition(separator)205            if sep != separator:206                raise DistutilsOptionError(207                    'Unable to parse option value to dict: %s' % value)208            result[key.strip()] = val.strip()209        return result210    @classmethod211    def _parse_bool(cls, value):212        """Represents value as boolean.213        :param value:214        :rtype: bool215        """216        value = value.lower()217        return value in ('1', 'true', 'yes')218    @classmethod219    def _exclude_files_parser(cls, key):220        """Returns a parser function to make sure field inputs221        are not files.222        Parses a value after getting the key so error messages are223        more informative.224        :param key:225        :rtype: callable226        """227        def parser(value):228            exclude_directive = 'file:'229            if value.startswith(exclude_directive):230                raise ValueError(231                    'Only strings are accepted for the {0} field, '232                    'files are not accepted'.format(key))233            return value234        return parser235    @classmethod236    def _parse_file(cls, value):237        """Represents value as a string, allowing including text238        from nearest files using `file:` directive.239        Directive is sandboxed and won't reach anything outside240        directory with setup.py.241        Examples:242            file: README.rst, CHANGELOG.md, src/file.txt243        :param str value:244        :rtype: str245        """246        include_directive = 'file:'247        if not isinstance(value, str):248            return value249        if not value.startswith(include_directive):250            return value251        spec = value[len(include_directive):]252        filepaths = (os.path.abspath(path.strip()) for path in spec.split(','))253        return '\n'.join(254            cls._read_file(path)255            for path in filepaths256            if (cls._assert_local(path) or True)257            and os.path.isfile(path)258        )259    @staticmethod260    def _assert_local(filepath):261        if not filepath.startswith(os.getcwd()):262            raise DistutilsOptionError(263                '`file:` directive can not access %s' % filepath)264    @staticmethod265    def _read_file(filepath):266        with io.open(filepath, encoding='utf-8') as f:267            return f.read()268    @classmethod269    def _parse_attr(cls, value, package_dir=None):270        """Represents value as a module attribute.271        Examples:272            attr: package.attr273            attr: package.module.attr274        :param str value:275        :rtype: str276        """277        attr_directive = 'attr:'278        if not value.startswith(attr_directive):279            return value280        attrs_path = value.replace(attr_directive, '').strip().split('.')281        attr_name = attrs_path.pop()282        module_name = '.'.join(attrs_path)283        module_name = module_name or '__init__'284        parent_path = os.getcwd()285        if package_dir:286            if attrs_path[0] in package_dir:287                # A custom path was specified for the module we want to import288                custom_path = package_dir[attrs_path[0]]289                parts = custom_path.rsplit('/', 1)290                if len(parts) > 1:291                    parent_path = os.path.join(os.getcwd(), parts[0])292                    module_name = parts[1]293                else:294                    module_name = custom_path295            elif '' in package_dir:296                # A custom parent directory was specified for all root modules297                parent_path = os.path.join(os.getcwd(), package_dir[''])298        with patch_path(parent_path):299            try:300                # attempt to load value statically301                return getattr(StaticModule(module_name), attr_name)302            except Exception:303                # fallback to simple import304                module = importlib.import_module(module_name)305        return getattr(module, attr_name)306    @classmethod307    def _get_parser_compound(cls, *parse_methods):308        """Returns parser function to represents value as a list.309        Parses a value applying given methods one after another.310        :param parse_methods:311        :rtype: callable312        """313        def parse(value):314            parsed = value315            for method in parse_methods:316                parsed = method(parsed)317            return parsed318        return parse319    @classmethod320    def _parse_section_to_dict(cls, section_options, values_parser=None):321        """Parses section options into a dictionary.322        Optionally applies a given parser to values.323        :param dict section_options:324        :param callable values_parser:325        :rtype: dict326        """327        value = {}328        values_parser = values_parser or (lambda val: val)329        for key, (_, val) in section_options.items():330            value[key] = values_parser(val)331        return value332    def parse_section(self, section_options):333        """Parses configuration file section.334        :param dict section_options:335        """336        for (name, (_, value)) in section_options.items():337            try:338                self[name] = value339            except KeyError:340                pass  # Keep silent for a new option may appear anytime.341    def parse(self):342        """Parses configuration file items from one343        or more related sections.344        """345        for section_name, section_options in self.sections.items():346            method_postfix = ''347            if section_name:  # [section.option] variant348                method_postfix = '_%s' % section_name349            section_parser_method = getattr(350                self,351                # Dots in section names are translated into dunderscores.352                ('parse_section%s' % method_postfix).replace('.', '__'),353                None)354            if section_parser_method is None:355                raise DistutilsOptionError(356                    'Unsupported distribution option section: [%s.%s]' % (357                        self.section_prefix, section_name))358            section_parser_method(section_options)359    def _deprecated_config_handler(self, func, msg, warning_class):360        """ this function will wrap around parameters that are deprecated361        :param msg: deprecation message362        :param warning_class: class of warning exception to be raised363        :param func: function to be wrapped around364        """365        @wraps(func)366        def config_handler(*args, **kwargs):367            warnings.warn(msg, warning_class)368            return func(*args, **kwargs)369        return config_handler370class ConfigMetadataHandler(ConfigHandler):371    section_prefix = 'metadata'372    aliases = {373        'home_page': 'url',374        'summary': 'description',375        'classifier': 'classifiers',376        'platform': 'platforms',377    }378    strict_mode = False379    """We need to keep it loose, to be partially compatible with380    `pbr` and `d2to1` packages which also uses `metadata` section.381    """382    def __init__(self, target_obj, options, ignore_option_errors=False,383                 package_dir=None):384        super(ConfigMetadataHandler, self).__init__(target_obj, options,385                                                    ignore_option_errors)386        self.package_dir = package_dir387    @property388    def parsers(self):389        """Metadata item name to parser function mapping."""390        parse_list = self._parse_list391        parse_file = self._parse_file392        parse_dict = self._parse_dict393        exclude_files_parser = self._exclude_files_parser394        return {395            'platforms': parse_list,396            'keywords': parse_list,397            'provides': parse_list,398            'requires': self._deprecated_config_handler(399                parse_list,400                "The requires parameter is deprecated, please use "401                "install_requires for runtime dependencies.",402                DeprecationWarning),403            'obsoletes': parse_list,404            'classifiers': self._get_parser_compound(parse_file, parse_list),405            'license': exclude_files_parser('license'),406            'license_files': parse_list,407            'description': parse_file,408            'long_description': parse_file,409            'version': self._parse_version,410            'project_urls': parse_dict,411        }412    def _parse_version(self, value):413        """Parses `version` option value.414        :param value:415        :rtype: str416        """417        version = self._parse_file(value)418        if version != value:419            version = version.strip()420            # Be strict about versions loaded from file because it's easy to421            # accidentally include newlines and other unintended content422            if isinstance(parse(version), LegacyVersion):423                tmpl = (424                    'Version loaded from {value} does not '425                    'comply with PEP 440: {version}'426                )427                raise DistutilsOptionError(tmpl.format(**locals()))428            return version429        version = self._parse_attr(value, self.package_dir)430        if callable(version):431            version = version()432        if not isinstance(version, str):433            if hasattr(version, '__iter__'):434                version = '.'.join(map(str, version))435            else:436                version = '%s' % version437        return version438class ConfigOptionsHandler(ConfigHandler):439    section_prefix = 'options'440    @property441    def parsers(self):442        """Metadata item name to parser function mapping."""443        parse_list = self._parse_list444        parse_list_semicolon = partial(self._parse_list, separator=';')445        parse_bool = self._parse_bool446        parse_dict = self._parse_dict447        parse_cmdclass = self._parse_cmdclass448        return {449            'zip_safe': parse_bool,450            'use_2to3': parse_bool,451            'include_package_data': parse_bool,452            'package_dir': parse_dict,453            'use_2to3_fixers': parse_list,454            'use_2to3_exclude_fixers': parse_list,455            'convert_2to3_doctests': parse_list,456            'scripts': parse_list,457            'eager_resources': parse_list,458            'dependency_links': parse_list,459            'namespace_packages': parse_list,460            'install_requires': parse_list_semicolon,461            'setup_requires': parse_list_semicolon,462            'tests_require': parse_list_semicolon,463            'packages': self._parse_packages,464            'entry_points': self._parse_file,465            'py_modules': parse_list,466            'python_requires': SpecifierSet,467            'cmdclass': parse_cmdclass,468        }469    def _parse_cmdclass(self, value):470        def resolve_class(qualified_class_name):471            idx = qualified_class_name.rfind('.')472            class_name = qualified_class_name[idx+1:]473            pkg_name = qualified_class_name[:idx]474            module = __import__(pkg_name)475            return getattr(module, class_name)476        return {477            k: resolve_class(v)478            for k, v in self._parse_dict(value).items()479        }480    def _parse_packages(self, value):481        """Parses `packages` option value.482        :param value:483        :rtype: list484        """485        find_directives = ['find:', 'find_namespace:']486        trimmed_value = value.strip()487        if trimmed_value not in find_directives:488            return self._parse_list(value)489        findns = trimmed_value == find_directives[1]490        # Read function arguments from a dedicated section.491        find_kwargs = self.parse_section_packages__find(492            self.sections.get('packages.find', {}))493        if findns:494            from setuptools import find_namespace_packages as find_packages495        else:496            from setuptools import find_packages497        return find_packages(**find_kwargs)498    def parse_section_packages__find(self, section_options):499        """Parses `packages.find` configuration file section.500        To be used in conjunction with _parse_packages().501        :param dict section_options:502        """...

parse.py

Source:parse.py

...46    def _parse_none(self, obj, depth=0):47        """ Always return None; Handy for eliminating objects we don't want48        results for. """49        return None50    def _parse_list(self, obj, depth=0):51        """ Recursivly parses lists, then returns the parsed de-duped results. """52        ret = []53        for item in obj:54            ret.append(self._parser(item, depth=depth))55        try:56            return list(set(ret))57        except TypeError:58            return ret59    def _parse_simple(self, obj, depth=0):60        """ Return the object sent to us, no further parsing needed """61        return obj62    def _parse_name(self, obj, depth=0):63        """ returns the object as a string. Often a simple way to convert to64        human readable form """...

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