I like the statsmodels spelling better: missing : str; Available options are ‘none’, ‘drop’, and ‘raise’

But this is bikeshed painting if the options exist.

However, I WOULD urge the argument to take EITHER a string OR an enum. I don't think any other libraries mentioned do that, but it would just seem friendly. The names in the enum, of course, should match the string names (other than casing perhaps).

On Sat, Aug 28, 2021 at 1:16 AM Christopher Barker <pythonchb@gmail.com> wrote:

SciPy should probably also be a data-point, it uses:

nan_policy : {'propagate', 'raise', 'omit'}, optional

+1

Also +1 on a string flag, rather than an Enum.

-CHB
--
Christopher Barker, PhD (Chris)

Python Language Consulting
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