---
tags: community, minutes
---

# PlasmaPy Community Meeting | Tuesday 2022 February 1 at 19:00 UT

### Video Conference Information
* [Zoom link](https://zoom.us/j/91633383503?pwd=QWNkdHpWeFhrYW1vQy91ODNTVG5Ndz09)
* Instant messaging: [Matrix](https://app.element.io/#/room/#plasmapy:openastronomy.org) and [Gitter](https://gitter.im/PlasmaPy/Lobby)
* [GitHub Minutes Repository](https://github.com/PlasmaPy/plasmapy-project/tree/master/minutes)
* ["Community" Sub-directory](https://github.com/PlasmaPy/plasmapy-project/tree/master/minutes/_community)
* [PlasmaPy on GitHub](https://github.com/PlasmaPy/plasmapy) ([pull requests](https://github.com/PlasmaPy/plasmapy/pulls), [issues](https://github.com/PlasmaPy/plasmapy/issues))
* [PlasmaPy Enhancement Proposals on GitHub](https://github.com/PlasmaPy/PlasmaPy-PLEPs)
* [PlasmaPy Google Calendar](https://calendar.google.com/calendar/embed?src=c_sqqq390s24jjfjp3q86pv41pi8%40group.calendar.google.com&ctz=America%2FNew_York)

## Agenda (please feel free to edit or add items)

1. Introductions
2. 10-15 minutes for [roadmap](https://hackmd.io/@plasmapy/ry0mmnj6v)
3. solicit "Project Issues"
4. ...
5. Issues
1. [Issue 1409](https://github.com/PlasmaPy/PlasmaPy/issues/1409): enable pre-commit by default?
2.
9. Pull requests in progress
1. [PR 1364](https://github.com/PlasmaPy/PlasmaPy/pull/1364): Provide more flexibility in `CustomParticle` arguments
2. [PR 1380](https://github.com/PlasmaPy/PlasmaPy/pull/1380) Units notebook
3. [PR 1382](https://github.com/PlasmaPy/PlasmaPy/pull/1382): Particles notebook
4. [PR 1389](https://github.com/PlasmaPy/PlasmaPy/pull/1389): `test_validators`
2. **MERGED** Pull Requests
1. [PR 1287](https://github.com/PlasmaPy/PlasmaPy/pull/1287): CSS magic i.e. documentation font contrast styling
2. [PR 1399](https://github.com/PlasmaPy/PlasmaPy/pull/1399): Remove warnings from `CustomParticle` and `DimensionlessParticle` for NaN attributes

## Attendees

* Erik
* Nick

## Action Items

***Person***
* ...

***Nick***
* Start a discussion on GitHub about alternative `plasmapy.formulary` APIs

## Minutes

* How do we make the formulary UI more friendly?
* Looking to develop a scheme more easily pass arguments between formulary functionality.
* Nick's idea:
* Erik's idea:
* Leverage Python's ability to decompose a dictionary into a function's keywords (i.e. `**kwargs`)
*

        class Plasma(collections.UserDict):
            # subclass
            ...

        def Alfven_speed(
            B: u.T,
            density: (u.m ** -3, u.kg / u.m ** 3),
            ion: Optional[Particle] = None,
            z_mean: Optional[numbers.Real] = None,
            **,
        ) -> u.m / u.s:
            ...

        plasma = Plasma(Te=..., Ti=..., n=...)
        Alfven_speed(**{**plasma, "B": 1*u.T})
        Alfvent_speed(**plamsa.override(B=1*u.T))

        plasma_lite = plasma.make_lite()
        thermal_speed_lite(**plasma_lite, coeff=np.sqrt(2))


        Union[Quantity[u.m], Quantity[u.C]]
        Quantity[u.m , u.C]

Appended on June 1st, 2022

plasma = {
    "B": 0.1 * u.T,
    "density": 1e12 * u.cm ** -3,
    "ion": "p",
    "T_e": 5 * u.eV,
}

Alfven_speed(**{**plasma, "B": 0.2 * u.T})

class Plasma(collections.UserDict):
    # subclass
    ...
    
    def getter(self, modname):
        if hasattr(plasma.formulary, modname)
            formfunc = getattr(plasmapy.formulary, modname)
            return formfunc(**self)

plasma = Plasma()
plasma.Alfvne_speed()

Appended on Aug. 16th, 2022

class Plasma:
    _all_paramerers = {}  # some kind of collection of all plasma parameters
    
    def __init__(self, *args, **kwargs):
        # definal all plasma parameters
        ...
    
    def parameters(self, func, **kwargs):
        # 1. inspect func to get arguments
        # 2. pull inpsected arguments from _all_parammeters
        # 3. Let **kwargs override collect _all_parameters
        # 4. call func(collected_params)
        # 5. return parameter
        ...
    
    def gyrofrquency(self, *args, **kwargs):
        """
        
        See Also
        --------
        Plasma.parameters
        """
        self.parameters(pform.gyrofrequency, *args, **kwags)
    
    @property
    def arguments(self):
        return self._all_parameters
        

>>> from plasmapy.plasma import Plasma
>>> from plasmapy import formulary as pform
>>> plasma = Plasma(...)
>>> wc = plasma.parameter(pform.gyrofrequency)
>>>
>>> pform.gyrofrequency(**plasma.arguments)

class Plasma:
    def __init__(self, *args, **kwargs):
        ...
    
    @property
    def gyroradius(self):
        return pform.gyroradius(self.B)
       
    

>>> from plasmapy.plasma import Plasma
>>> plasma = Plasma(...)
>>> plasma.lengths.gyroradius
0.1 m
>>>