issues: 464717028

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
464717028 MDU6SXNzdWU0NjQ3MTcwMjg= 3081 Method chaining on magic methods? 4441865 closed 0     2 2019-07-05T17:02:44Z 2019-07-09T19:28:11Z 2019-07-09T19:28:11Z CONTRIBUTOR      

Apologies if this has been discussed, I couldn't find it.

In pandas and xarray I prefer a method-chaining style, and with pandas this is now very well supported. However, xarray is missing a number of simple methods. I often find myself having to use magic methods like __eq__ directly to avoid breaking the chain. Is there any reason not to do

class DataArray:
    ...
    eq = __eq__
    gt = __gt__
    ge = __ge__
    lt = __lt__
    le = __le__
    add = __add__
    subtract = __sub__
    multiply = __mul__
    divide = __div__
    pow = __pow__
    # etc.

Probably it is more complicated than this, but hopefully it communicates the idea.

 
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