parmed.unit.BaseUnit

class parmed.unit.BaseUnit(base_dim, name, symbol)

Physical unit expressed in exactly one BaseDimension.

For example, meter_base_unit could be a BaseUnit for the length dimension. The BaseUnit class is used internally in the more general Unit class.

Methods

conversion_factor_to(other)	Returns a conversion factor from this BaseUnit to another BaseUnit.
define_conversion_factor_to(other, factor)	Defines a conversion factor between two BaseUnits.
get_dimension_tuple()	Returns a sorted tuple of (BaseDimension, exponent) pairs, that can be used as a dictionary key.
iter_base_dimensions()	Returns a dictionary of BaseDimension:exponent pairs, describing the dimension of this unit.

iter_base_units

__init__(base_dim, name, symbol)

Creates a new BaseUnit.

Parameters

• self: The newly created BaseUnit.

• base_dim: (BaseDimension) The dimension of the new unit, e.g. ‘mass’

• name: (string) Name of the unit, e.g. “kilogram”

• symbol: (string) Symbol for the unit, e.g. ‘kg’. This symbol will appear in

  Quantity string descriptions.

Methods

__init__(base_dim, name, symbol)	Creates a new BaseUnit.
conversion_factor_to(other)	Returns a conversion factor from this BaseUnit to another BaseUnit.
define_conversion_factor_to(other, factor)	Defines a conversion factor between two BaseUnits.
get_dimension_tuple()	Returns a sorted tuple of (BaseDimension, exponent) pairs, that can be used as a dictionary key.
iter_base_dimensions()	Returns a dictionary of BaseDimension:exponent pairs, describing the dimension of this unit.
iter_base_units()