[Pandas-dev] Colon available everywhere

[Pietro Battiston]

Il giorno gio, 19/07/2018 alle 09.33 -0700, Stephan Hoyer ha scritto:
> I'm pretty sure this has been proposed before on Python-ideas.
> Definitely search through the archives first.

The closest I found is
https://mail.python.org/pipermail/python-ideas/2015-June/034086.html
https://bugs.python.org/issue24379

proposing the less invasive (not requiring changes in the language),
but also less useful 

slice.literal

as in

reverse = slice.literal[::-1]

By the way, if only slice was subclassable, we could do

class PowerSlice(slice):            
    def __getitem__(self, key):
        return key

W = PowerSlice()

so that both

series.df[W, 'col']

and

series.df[W[:], 'col']

would work.

Unfortunately that is not the case (and anyway, this solution would
still be suboptimal).

Pietro