On Thu, 29 May 2014 15:26:37 -0500, Mark H Harris wrote:

> I think the IDLE REPL should have a system shell mode. What say you?

I don't use IDLE, so I don't really care what you do to it. But speaking 
generally, -1 on that. IDLE is primarily aimed at beginners, and 
beginners have enough trouble distinguishing the system shell separate in 
their heads from the Python shell, the last thing they need is something 
that blurs the difference.

There is a power-user shell that does exactly what you want, turned up to 
eleven: IPython. IPython allows you to run system commands by prefixing 
them with ! and has an entire subsystem of user-configurable "magic" 
commands using % prefix.

(By the way, ; won't work for a Python shell, because ;spam already is 
valid Python syntax: it's an empty statement followed by the statement 
spam, separated by a semicolon.)

Steven D'Aprano

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