def __mul__(cls, other):
if isinstance(other, Number):
return ValueWithUnits(other, cls)
elif isinstance(other, Unit):
return CompositeUnit({cls: 1, other: 1})
else:
return NotImplemented
def __pow__(cls, power):
if isinstance(power, Real):
return CompositeUnit({cls: power})
else: # pragma: no cover
return NotImplemented
def __rdiv__(cls, other):
if isinstance(other, Number):
return ValueWithUnits(other, CompositeUnit({cls: -1}))
else: # pragma: no cover
return NotImplemented
def __div__(cls, other):
if isinstance(other, Unit):
return CompositeUnit({cls: 1, other:-1})
else:
return NotImplemented