__all__ = [
'NullDate'
]
import datetime
from typing import Optional
class NullDate(datetime.datetime):
"""
Version of datetime.datetime intended to represent a value of NULL.
Some properties use different values for a null date, and those need to be
differentiated when packing the data back into an MSG file, which is why
this class exists. Comparisons between NullDate instances will always say
the two dates are equal.
:attribute filetime: An optional value that can be set to the filetime a
null date should convert back to.
"""
filetime: Optional[int] = None
def __eq__(self, other) -> bool:
if isinstance(other, NullDate):
return True
return super().__eq__(other)
def __ne__(self, other) -> bool:
if isinstance(other, NullDate):
return False
return super().__eq__(other)