python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/Tools/scripts/dutree.doc

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+Path: cwi.nl!sun4nl!mcsun!uunet!cs.utexas.edu!convex!usenet
+From: tchrist@convex.COM (Tom Christiansen)
+Newsgroups: comp.lang.perl
+Subject: Re: The problems of Perl (Re: Question (silly?))
+Message-ID: <1992Jan17.053115.4220@convex.com>
+Date: 17 Jan 92 05:31:15 GMT
+References: <17458@ector.cs.purdue.edu> <1992Jan16.165347.25583@cherokee.uswest.com> <=#Hues+4@cs.psu.edu>
+Sender: usenet@convex.com (news access account)
+Reply-To: tchrist@convex.COM (Tom Christiansen)
+Organization: CONVEX Realtime Development, Colorado Springs, CO
+Lines: 83
+Nntp-Posting-Host: pixel.convex.com
+
+From the keyboard of flee@cs.psu.edu (Felix Lee):
+:And Perl is definitely awkward with data types.  I haven't yet found a
+:pleasant way of shoving non-trivial data types into Perl's grammar.
+
+Yes, it's pretty aweful at that, alright.  Sometimes I write perl programs
+that need them, and sometimes it just takes a little creativity.  But
+sometimes it's not worth it.  I actually wrote a C program the other day
+(gasp) because I didn't want to deal with a game matrix with six links per node.
+
+:Here's a very simple problem that's tricky to express in Perl: process
+:the output of "du" to produce output that's indented to reflect the
+:tree structure, and with each subtree sorted by size.  Something like:
+:    434 /etc
+:      |     344 .
+:      |      50 install
+:      |      35 uucp
+:      |       3 nserve
+:      |       |       2 .
+:      |       |       1 auth.info
+:      |       1 sm
+:      |       1 sm.bak
+
+At first I thought I could just keep one local list around
+at once, but this seems inherently recursive.  Which means
+I need an real recursive data structure.  Maybe you could
+do it with one of the %assoc arrays Larry uses in the begat
+programs, but I broke down and got dirty.  I think the hardest
+part was matching Felix's desired output exactly.  It's not
+blazingly fast: I should probably inline the &childof routine,
+but it *was* faster to write than I could have written the
+equivalent C program.
+
+
+--tom
+
+--
+"GUIs normally make it simple to accomplish simple actions and impossible
+to accomplish complex actions."   --Doug Gwyn  (22/Jun/91 in comp.unix.wizards)
+
+     Tom Christiansen           tchrist@convex.com      convex!tchrist
+