Recipe package system.

recipe_engine/third_party/setuptools/py31compat.py

Index: recipe_engine/third_party/setuptools/py31compat.py
diff --git a/recipe_engine/third_party/setuptools/py31compat.py b/recipe_engine/third_party/setuptools/py31compat.py
new file mode 100644
index 0000000000000000000000000000000000000000..c487ac04394af63265c7857d8ad62934aa9b3321
--- /dev/null
+++ b/recipe_engine/third_party/setuptools/py31compat.py
@@ -0,0 +1,52 @@
+import sys
+import unittest
+
+__all__ = ['get_config_vars', 'get_path']
+
+try:
+    # Python 2.7 or >=3.2
+    from sysconfig import get_config_vars, get_path
+except ImportError:
+    from distutils.sysconfig import get_config_vars, get_python_lib
+    def get_path(name):
+        if name not in ('platlib', 'purelib'):
+            raise ValueError("Name must be purelib or platlib")
+        return get_python_lib(name=='platlib')
+
+try:
+    # Python >=3.2
+    from tempfile import TemporaryDirectory
+except ImportError:
+    import shutil
+    import tempfile
+    class TemporaryDirectory(object):
+        """"
+        Very simple temporary directory context manager.
+        Will try to delete afterward, but will also ignore OS and similar
+        errors on deletion.
+        """
+        def __init__(self):
+            self.name = None # Handle mkdtemp raising an exception
+            self.name = tempfile.mkdtemp()
+
+        def __enter__(self):
+            return self.name
+
+        def __exit__(self, exctype, excvalue, exctrace):
+            try:
+                shutil.rmtree(self.name, True)
+            except OSError: #removal errors are not the only possible
+                pass
+            self.name = None
+
+
+unittest_main = unittest.main
+
+_PY31 = (3, 1) <= sys.version_info[:2] < (3, 2)
+if _PY31:
+    # on Python 3.1, translate testRunner==None to TextTestRunner
+    # for compatibility with Python 2.6, 2.7, and 3.2+
+    def unittest_main(*args, **kwargs):
+        if 'testRunner' in kwargs and kwargs['testRunner'] is None:
+            kwargs['testRunner'] = unittest.TextTestRunner
+        return unittest.main(*args, **kwargs)