trywithenum.py

from enum import Enum
from dataclasses import dataclass, field
from typing import List

class TYPES(Enum):
    STD = "std"
    WW = "W/W"
    HH = "H/H"
    SS = "S/S"
    WH = "W/H"
    WS = "W/S"
    HS = "H/S"
    STACKED = "stacked"

def create_interactions(basepairs, interactions):
    return [basepair
            for basepair in basepairs.deck
            if basepair.interaction_type in interactions
            ]

@dataclass
class BasePair:
    deck = []
    pass

@dataclass
class BasePairs:
    """
    Deck of BasePair
    """
    deck: List[BasePair] = field(default_factory=list)
    interaction_types = [t for t in TYPES]

    def __init__(self, basepairs):
        self.deck = create_interactions(basepairs, self.interaction_types)

@dataclass
class WS(BasePairs):
    interaction_types = [TYPES.WS]

@dataclass
class HS(BasePairs):
    interaction_types = [TYPES.HS]

a=WS(BasePair())

print(a)
print(a.interaction_types)