import imghdr
from pathlib import Path
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 File
relations = [IdentityRelation(cls, File)]
return relations
[docs]class Image(VisionsBaseType):
"""**Image** implementation of :class:`visions.types.type.VisionsBaseType`.
(i.e. series with all image files)
Examples:
>>> x = pd.Series([Path('/home/user/file.png'), Path('/home/user/test2.jpg')])
>>> x in visions.Image
True
"""
@classmethod
def get_relations(cls) -> Sequence[TypeRelation]:
return _get_relations(cls)
@classmethod
@nullable_series_contains
def contains_op(cls, series: pd.Series) -> bool:
return all(
isinstance(p, Path) and p.exists() and imghdr.what(p) for p in series
)