The unit handler
Project description
To use, import the Units class. I like to shorthand it as _, after the style of TI calculators:
>>> from unties import Units as _
And you instantly have access to a ton of units and constants
Examples:
## Convert ‘ft’ to ‘inch’
_.ft.units_of(_.inch) #=> ‘12.000000000000002 * (0.0254 * _.m)’
## Convert 12.5 ‘ft’ to ‘inch’
(11.5 * _.ft).units_of(_.inch) #=> ‘138.00000000000003 * (0.0254 * _.m)’
# As you can see fro the examples, the decimals are not perfectly exact
## Each unit_group does not have to have the same dimensions:
(_.m/_.s).units_of(_.inch) #=> ‘39.37007874015748 * _.s**-1 * (0.0254 * _.m)’
But this isn’t always very useful:
(_.m**2).units_of(_.inch**3) #=> ‘61023.74409473229 * _.m**-1 * (1.6387064e-05 * _.m**3)’
## Multiple units have to be grouped:
(_.inch*_.fur).units_of(_.m**2) #=> ‘5.1096672 * (1.0 * _.m**2)’
# or else: _.inch*_.fur.units_of(_.m**2) #=> Exception: AttributeError: ‘str’ object has no attribute ‘copy’
# This is because methods have higher priority than the <*> operator
