Source code for visions.types.file

import pathlib
from typing import Sequence

import pandas as pd

from visions.relations import IdentityRelation, TypeRelation
from visions.types.type import VisionsBaseType
from visions.utils.series_utils import nullable_series_contains, series_not_empty


def _get_relations(cls) -> Sequence[TypeRelation]:
    from visions.types import Path

    relations = [IdentityRelation(cls, Path)]
    return relations


[docs]class File(VisionsBaseType): """**File** implementation of :class:`visions.types.type.VisionsBaseType`. (i.e. existing path) Examples: >>> x = pd.Series([pathlib.Path('/home/user/file.txt'), pathlib.Path('/home/user/test2.txt')]) >>> x in visions.File True """ @classmethod def get_relations(cls) -> Sequence[TypeRelation]: return _get_relations(cls) @classmethod @series_not_empty @nullable_series_contains def contains_op(cls, series: pd.Series, state: dict) -> bool: return all(isinstance(p, pathlib.Path) and p.exists() for p in series)