Calculating derivatives within PySR

[TadeuNP]

Hi,

When running SymbolicRegression.jl, I can set enable_autodiff=True and the computation of derivatives will work. However, when using eval_diff_tree_array from PySR, I get the following error:

RuntimeError: <PyCall.jlwrap (in a Julia function called from Python)
JULIA: Found no differential operators. Did you forget to set enable_autodiff=true when creating the OperatorEnum?

Is there any of doing it from the PySR? I can't find any way of introducing this option.

Thanks!

[MilesCranmer]

Hm, I think this is a bug. Let me move this to the issues.

Moved to #315

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Edit: fixed on PySR v0.12.2.