Difference between revisions of "Pint"
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(Created page with "Category:Python This code make all kind of units available as UNITS.unit: <syntaxhighlight lang=python> import pint UNITS = pint.UnitRegistry() Quantity = UNITS.Quantity...") |
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| Line 7: | Line 7: | ||
Quantity = UNITS.Quantity | Quantity = UNITS.Quantity | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| + | |||
| + | To see all units available open the python shell: | ||
| + | |||
| + | <code>>>> UNITS.</code> and press <tab> twice. To limit the list type the first character(s) of the unit <code>>>> UNITS.a</code> | ||
You can specify formulas with units. | You can specify formulas with units. | ||
| Line 22: | Line 26: | ||
Output: | Output: | ||
<code>88.2 meter / second</code> | <code>88.2 meter / second</code> | ||
| + | |||
| + | ;unitaval.to(UNITS.unitb) | ||
| + | :Convert the unita to unitb | ||
| + | :Conversion of compatible units is on the fly. The first unit in the calculation defines the output unit. | ||
| + | Example: | ||
| + | <syntaxhighlight lang=python> | ||
| + | distance = 15 * meter | ||
| + | distance.to(UNITS.yard) | ||
| + | </syntaxhighlight> | ||
| + | Output: | ||
| + | <code><Quantity(16.404199475065617, 'yard')></code> | ||
Latest revision as of 23:09, 5 December 2018
This code make all kind of units available as UNITS.unit:
import pint
UNITS = pint.UnitRegistry()
Quantity = UNITS.Quantity
To see all units available open the python shell:
>>> UNITS. and press <tab> twice. To limit the list type the first character(s) of the unit >>> UNITS.a
You can specify formulas with units.
The formula for gravity acceleration:
meter = UNITS.meter
second = UNITS.second
acc = 9.8 * meter / second ** 2
time = 9 * second
speed = acc * time
print(speed)
Output:
88.2 meter / second
- unitaval.to(UNITS.unitb)
- Convert the unita to unitb
- Conversion of compatible units is on the fly. The first unit in the calculation defines the output unit.
Example:
distance = 15 * meter
distance.to(UNITS.yard)
Output:
<Quantity(16.404199475065617, 'yard')>