Added python 2.4-2.6 support for skipIf

--HG--
branch : distribute
extra : rebase_source : cac18ef7c3dbde38ceac3a0c71cfb3b5ffa56dd5

setuptools/tests/py26compat.py

+import unittest
+
+try:
+	# provide skipIf for Python 2.4-2.6
+	skipIf = unittest.skipIf
+except AttributeError:
+	def skipIf(condition, reason):
+		def skipper(func):
+			def skip(*args, **kwargs):
+				return
+			if condition:
+				return skip
+			return func

setuptools/tests/test_dist_info.py

@@ -13,6 +13,8 @@ except:
 
 import pkg_resources
 
+from setuptools.tests.py26compat import skipIf
+
 def DALS(s):
     "dedent and left-strip"
     return textwrap.dedent(s).lstrip()