Is .param._cls_parameters a good replacement for the method .param.params()?

Param
1

Hello,

I recently updated param to the version 2.3.1 and noticed that the method .param.params() is removed. In the version 2.2.1, the method still exists (although deprecated), and the documentation recommended using .param.values() (see link).

However, these 2 methods return different things:

  • params() → {name: Parameter} (parameter object)
  • values() → {name: value} (parameter values)

I need access to the Parameter objects, because I need attributes like allow_None.

I notice that there is a property _cls_parameters that also returns {name: Parameter}. Is this property equivalent to the old .params() method? Or is there another recommended way to access the full Parameter objects in param 2.3+?

Thanks!

2

Hi @LuckyYue,

The recommendation to use .param.values() to replace the deprecated .param.params() was a copy/paste error. Instead you should use .param.objects().

I recommend against using any private members (like _cls_parameters) as they can be changed in any release, while public members must go through a deprecation cycle.

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