Use pooch to obtain OWLS ionization data

[matthewturk]

Now that Pooch support has been merged (#2417 ) we should use pooch to download ionization data for the OWLS frontend instead of manually.

[munkm]

This is a great issue for a new contributor to the project. To do this, you'll want to modify the portion of yt/frontends/owls/fields.py to use pooch to download the ionization data (see the following lines: https://github.com/yt-project/yt/blob/master/yt/frontends/owls/fields.py#L286-L310). The linked PR has some examples of using pooch to download data.

I think because pooch is an optional dependency on install for us, it would be worth talking about what the behavior should be if a user doesn't have pooch installed and this data is attempted to be downloaded. Do we want to fall back using the current behavior? Or issue a warning?

[zackcd]

May I try to work on this if still needed? Thanks.

[matthewturk]

Yes absolutely!!

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On Wed, Apr 22, 2020, 6:20 PM Zachary Downing ***@***.***> wrote: May I try to work on this if still needed? Thanks. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#2476 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAVXO2IA4YHHGB3PZEHYJLRN53TZANCNFSM4LERCDOA> .