def __sub__(self, other: Snapshot) -> Snapshot:
if not isinstance(other, Snapshot):
return NotImplemented
return Snapshot(
posix.times_result(t0 - t1
for t0, t1 in zip(self.process, other.process)))
def null(cls) -> Snapshot:
return cls(posix.times_result((0.0, 0.0, 0.0, 0.0, 0.0)))
def deserialize(cls, serialized: object) -> Snapshot:
try:
assert isinstance(serialized, dict)
return cls(posix.times_result(serialized["process"]))
except LookupError as exc:
raise ValueError(serialized) from exc
def times_result(seq: Iterable[float]) -> posix.times_result:
# mypy warnings are false positives.
return posix.times_result(tuple(seq)) # type: ignore[arg-type, call-arg]