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
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
@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)