1 In this directory:

     2 - py2_test_grammar.py -- test file that exercises most/all of Python 2.x's grammar.

     3 - py3_test_grammar.py -- test file that exercises most/all of Python 3.x's grammar.

     4 - infinite_recursion.py -- test file that causes lib2to3's faster recursive pattern matching

     5   scheme to fail, but passes when lib2to3 falls back to iterative pattern matching.

     6 - fixes/ -- for use by test_refactor.py