Improving introspection way for Python functions

[kozo2]

For now, we have no choice but to use df.__dir__ to check the available pandas methods.

It might be a good idea to retrieve the function names from df.__dir__ and re-define the df class methods with it.

[kozo2]

My idea has changed a bit.
Since the pandas dataframe has a lot of methods, it might be more convenient to introspect it separately from Ruby's method.
And it might be a good idea to rename df.__dir__ to df.pymethod.

[mrkn]

A problem in the idea of the separation is that people need to consider a object is a just Ruby object or a wrapper of Python object.

And, I think pymethods is not good name even if introducing the separation.

[baarkerlounger]

Wouldn't it be better to merge the output of df.__dir__ and df.methods and make that the ouput of df.methods?

[mrkn]

@baarkerlounger Thank you for your feedback.

I've reconsidered that it's not bad to merge the output of pyobj.__dir__ into pyobj.methods.
It's because respond_to? has already treated Python methods.