[Python-ideas] Python Object Notation (PyON)

[Terry Reedy]

Zaur Shibzoukhov wrote:
> Python Object Notation (PyON 
> <http://code.google.com/p/pyon/wiki/GettingStarted>)
> 
> Python 2.6/3.0 now has a module ast. This opens up new opportunities. 
> One of them is the possibility of introducing human readable/writable 
> literal object notation, based on the syntax of the python language.

Other than syntax details, how is PyON different from json, yaml (3rd 
party module), and anything else?

I see at bottom time comparison with pickle and json, but only that.

> I would like to know what do you think about this?

Grammar:   <kw> := <name> = <pyon_expr>, ..., <name> = <pyon_expr>
There is no rule for pyon_expr.  Did you just mean <expr>?

...   y=IF(
...     flag,
...     A1(kind='A1'),
...     A2(kind='A2')
...   )

Where does IF come from?

   * extension objects didn't take in mind.
needs to be rewritten