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How to use _collect_fields method in pandera

Best Python code snippet using pandera_python

mapping.py

Source:mapping.py

...26        return super(Properties, self).to_dict()['properties']27    def field(self, name, *args, **kwargs):28        self.properties[name] = construct_field(*args, **kwargs)29        return self30    def _collect_fields(self):31        """ Iterate over all Field objects within, including multi fields. """32        for f in itervalues(self.properties.to_dict()):33            yield f34            # multi fields35            if hasattr(f, 'fields'):36                for inner_f in itervalues(f.fields.to_dict()):37                    yield inner_f38            # nested and inner objects39            if hasattr(f, '_collect_fields'):40                for inner_f in f._collect_fields():41                    yield inner_f42    def update(self, other_object):43        if not hasattr(other_object, 'properties'):44            # not an inner/nested object, no merge possible45            return46        our, other = self.properties, other_object.properties47        for name in other:48            if name in our:49                if hasattr(our[name], 'update'):50                    our[name].update(other[name])51                continue52            our[name] = other[name]53class Mapping(object):54    def __init__(self):55        self.properties = Properties()56        self._meta = {}57    def __repr__(self):58        return 'Mapping()'59    def _clone(self):60        m = Mapping()61        m.properties._params = self.properties._params.copy()62        return m63    @classmethod64    def from_es(cls, index, using='default'):65        m = cls()66        m.update_from_es(index, using)67        return m68    def resolve_nested(self, field_path):69        field = self70        nested = []71        parts = field_path.split('.')72        for i, step in enumerate(parts):73            try:74                field = field[step]75            except KeyError:76                return (), None77            if isinstance(field, Nested):78                nested.append('.'.join(parts[:i+1]))79        return nested, field80    def resolve_field(self, field_path):81        field = self82        for step in field_path.split('.'):83            try:84                field = field[step]85            except KeyError:86                return87        return field88    def _collect_analysis(self):89        analysis = {}90        fields = []91        if '_all' in self._meta:92            fields.append(Text(**self._meta['_all']))93        for f in chain(fields, self.properties._collect_fields()):94            for analyzer_name in ('analyzer', 'normalizer', 'search_analyzer', 'search_quote_analyzer'):95                if not hasattr(f, analyzer_name):96                    continue97                analyzer = getattr(f, analyzer_name)98                d = analyzer.get_analysis_definition()99                # empty custom analyzer, probably already defined out of our control100                if not d:101                    continue102                # merge the definition103                # TODO: conflict detection/resolution104                for key in d:105                    analysis.setdefault(key, {}).update(d[key])106        return analysis107    def save(self, index, using='default'):...

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