def test_issue_1300(self):
ureg = UnitRegistry()
ureg.default_format = "~P"
m = ureg.Measurement(1, 0.1, "meter")
assert m.default_format == "~P"
ureg = UnitRegistry()
# Because of unpickling:
class Quantity(_Quantity):
_REGISTRY = ureg
force_ndarray = False
class Unit(_Unit):
_REGISTRY = ureg
class Measurement(_Measurement, Quantity):
_REGISTRY = ureg
force_ndarray = False
ureg.Quantity = Quantity
ureg.Unit = Unit
ureg.Measurement = Measurement
ureg.define("classical_electron_radius = e^2/(4*pi*m_e*epsilon_0*c^2) = r_e")
ureg.define("percent = 1e-2*count = %")
ureg.define(u"permille = 1e-3*count = \u2030")
ureg.define("ppm = 1e-6*count")
ureg.define("ppb = 1e-9*count")
ureg.define("particles_per_mol = avogadro_number/mol")
