[Python-ideas] Option of running shell/console commands inside the REPL

[Oleg Broytman]

On Sat, Feb 02, 2019 at 07:45:43AM +1100, Chris Angelico <rosuav at gmail.com> wrote:
> On Sat, Feb 2, 2019 at 7:32 AM Oleg Broytman <phd at phdru.name> wrote:
> >
> > On Fri, Feb 01, 2019 at 03:12:42PM -0500, Terry Reedy <tjreedy at udel.edu> wrote:
> > > On 2/1/2019 1:50 PM, James Lu wrote:
> > > > It???s difficult to learn anything with a body (such as a loop or a class or a function) with the built in REPL because you can???t edit lines you???ve already written.
> > >
> > > However, I don't see what this has to do with running system console
> > > commands in a Python shell.
> >
> >    Python REPL is missing the following batteries:
> >
> > * Persistent history;
> 
> Dunno about that - it persists just fine on my system. Maybe it's a
> Windows problem? On all my Windows systems, I just use IDLE instead of
> the default REPL and have done with it.
> 
> > * Syntax highlighting;
> 
> Not usually something I need from a REPL. That's a feature for an editor.
> 
> > * Clear separation (using, for example, different colors)
> >   between input, output and errors;
> 
> Input is marked with a prompt (">>>" or "..."). Errors are just
> another form of output.

   Yes, that the thing - it's *another* form of output.

> > * Paging of very long output/errors.
> 
> This could definitely be improved on. I don't know that this counts as
> "missing batteries" though, as the standard library DOES include a
> hook that you could use for the purpose (sys.displayhook); it's just a
> matter of figuring out a suitable renderer.

   I use it, of course:

https://phdru.name/Software/dotfiles/python/init.py.html

   The question is - does builtin REPL need more batteries?

> ChrisA

Oleg.
-- 
    Oleg Broytman            https://phdru.name/            phd at phdru.name
           Programmers don't die, they just GOSUB without RETURN.