from __future__ import annotations from .sized_byte_class import SizedBytes class bytes4(SizedBytes): _size = 4 zeros: bytes4 class bytes8(SizedBytes): _size = 8 zeros: bytes8 class bytes32(SizedBytes): _size = 32 zeros: bytes32 class bytes48(SizedBytes): _size = 48 zeros: bytes48 class bytes96(SizedBytes): _size = 96 zeros: bytes96 class bytes100(SizedBytes): _size = 100 zeros: bytes100 class bytes480(SizedBytes): _size = 480 zeros: bytes480 def _add_zeros(): for cls in list(globals().values()): if isinstance(cls, type) and cls is not SizedBytes and issubclass(cls, SizedBytes): cls.zeros = cls(b"\x00" * cls._size) _add_zeros()