python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/Tools/README

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+This directory contains a number of Python programs that are useful
+while building or extending Python.
+
+buildbot        Batchfiles for running on Windows buildslaves.
+
+ccbench         A Python threads-based concurrency benchmark. (*)
+
+demo            Several Python programming demos.
+
+freeze          Create a stand-alone executable from a Python program.
+
+gdb             Python code to be run inside gdb, to make it easier to
+                debug Python itself (by David Malcolm).
+
+i18n            Tools for internationalization. pygettext.py
+                parses Python source code and generates .pot files,
+                and msgfmt.py generates a binary message catalog
+                from a catalog in text format.
+
+iobench         Benchmark for the new Python I/O system. (*)
+
+msi             Support for packaging Python as an MSI package on Windows.
+
+parser          Un-parsing tool to generate code from an AST.
+
+pybench         Low-level benchmarking for the Python evaluation loop. (*)
+
+pynche          A Tkinter-based color editor.
+
+scripts         A number of useful single-file programs, e.g. tabnanny.py
+                by Tim Peters, which checks for inconsistent mixing of
+                tabs and spaces, and 2to3, which converts Python 2 code
+                to Python 3 code.
+
+stringbench     A suite of micro-benchmarks for various operations on
+                strings (both 8-bit and unicode). (*)
+
+test2to3        A demonstration of how to use 2to3 transparently in setup.py.
+
+unicode         Tools for generating unicodedata and codecs from unicode.org
+                and other mapping files (by Fredrik Lundh, Marc-Andre Lemburg
+                and Martin von Loewis).
+
+unittestgui     A Tkinter based GUI test runner for unittest, with test
+                discovery.
+
+
+(*) A generic benchmark suite is maintained separately at https://github.com/python/performance