[Tutor] Changing the interpreter prompt symbol from ">>>" to ???

[William Ray Wing]

> On Mar 11, 2016, at 10:31 PM, boB Stepp <robertvstepp at gmail.com> wrote:
> 
> I must be bored tonight.  I have to confess that when copying and
> pasting from the interpreter into a plain text email, I often find it
> cluttered to confusing by all the ">>>..." that can result from nested
> quoting.  So I poked around on the Internet and found that I can
> temporarily change the prompt symbol using sys.ps1.  My initial trials
> are:
> 
> Python 3.5.1 (v3.5.1:37a07cee5969, Dec  6 2015, 01:54:25) [MSC v.1900
> 64 bit (AMD64)] on win32
> Type "help", "copyright", "credits" or "license" for more information.
>>>> import sys
>>>> sys.ps1 = '=>'
> =>sys.ps1 = chr(26)
> →sys.ps1 = chr(16)
> ►
> 
> I personally like the last of these.  My question is, will this show
> up as a black, filled-in arrowhead pointing to the right on everyone's
> email?  

Can't answer for "everyone" but it certainly shows up that way in Apple Mail. 
And I agree, I rather like it too, and for the same reason: false interpretation of the standard prompt as nested quotes. 
-Bill

> I have yet to delve into Unicode display issues, but I have
> vague recollections that the old ASCII table values might not always
> display the same thing from one person's display to another one's.  Is
> this correct?
> 
> And a related question:  I often have the IDLE version of the Python
> shell open.  How can I make this sort of change for IDLE?  I have done
> some Googling on this as well, but haven't found the right search
> query yet.  I also poked into some of the idlelib files, but so far
> the only ">>>" I've found have been in specialized displays like IDLE
> debug.
> 
> TIA!
> 
> -- 
> boB
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