multiline prototyping on command line

[Eric Smith]

gerglery at usa.net (greg andruk) posted in comp.lang.python on 
30 Oct 1999 04:55:37 -0400:
 > Eric Smith <eric at fruitcom.com> wrote:
 > 
 > > I am am a perl programmer looking at Python and would like to know whether
 > > it is possible on the command line to test algorithms like I do in perl
 > > thusly:
 > 
 > > perl -e '$r="de";if ($r eq "whatever" or "de") {print "a match\n"}
 > 
 > Nitpick: I don't think the above is testing what you think it's
 > testing; it will always print "a match" regardless of $r's value.
 > I'll assume you meant `...($r eq "whatever" or $r eq "de")...' there.
 > 
 > Anyway, Python's not especially amenable to one-liners.  Instead, it
 > has a really spiffy interactive mode you can leave running in a window
 > or spare console session that works like you probably wish `perl -d'
 > worked:
 > 
 > meowing:~$ pytest
 > Python 1.5.2+ (#2, Oct 25 1999, 05:27:05)  [GCC 2.7.2.3] on linux2
 > Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
 > >>> r = 'de'
 > >>> r in ('whatever', 'de')
 > 1
 > >>> # and just for the heck of it...
 > ... r == 'whatever' or 'de'
 > 'de'
 > >>> 


-- 
Eric Smith
eric at fruitcom.com
www.fruitcom.com

unix perl - sailing to war in an Armada of nutshells.