hgrecco
parse_pattern doesn´t parse compound units
When using parse_pattern with compound units in the pattern (e.g. 'meter per second'), it won´t parse.
Example:
>>> input = '44 mpsec'
>>> pattern = '{meter per second} mpsec´ //Tried also 'meter / second' but didn´t work either.
>>> ureg.parse_pattern(input_string=input, pattern=pattern)
>>> [] //Would expect <Quantity(44, 'meter / second')> here
With a single unit in the pattern (like 'meter') it does work fine
Hello, this is because you are missing the underscore characters associated with the unit definition
It works with:
>>> input = '44 mpsec'
>>> pattern = '{meter_per_second} mpsec'
>>> ureg.parse_pattern(input_string=input, pattern=pattern)
[44.0 <Unit('meter_per_second')>]
Greetings
perhaps we should add some regex to parse_pattern so it replaces " per " with " / "?
@yerkoescalona Ok, that was not very obvious (i was already looking for the unit definitions in the code, but i couldn´t find them, maybe we could put a description of all unit definitions somewhere in the documentation?)
At the top of the tutorial
https://pint.readthedocs.io/en/stable/getting/tutorial.html
If no parameters are given to the constructor, the UnitRegistry is populated with the default list of units and prefixes.
