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This directory contains a number of Python programs that are usefulwhile 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.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 athttps://github.com/python/performance