Fix and test pip version consistency

Lib/ensurepip/__init__.py

@@ -12,7 +12,7 @@ __all__ = ["version", "bootstrap"]
 
 _SETUPTOOLS_VERSION = "1.3.2"
 
-_PIP_VERSION = "1.5.rc1"
+_PIP_VERSION = "1.5rc1"
 
 _PROJECTS = [
     ("setuptools", _SETUPTOOLS_VERSION),

Lib/test/test_venv.py

@@ -5,6 +5,7 @@ Copyright (C) 2011-2012 Vinay Sajip.
 Licensed to the PSF under a contributor agreement.
 """
 
+import ensurepip
 import os
 import os.path
 import shutil
@@ -313,8 +314,9 @@ class EnsurePipTest(BaseTest):
         err = err.decode("latin-1") # Force to text, prevent decoding errors
         self.assertEqual(err, "")
         out = out.decode("latin-1") # Force to text, prevent decoding errors
+        expected_version = "pip {}".format(ensurepip.version())
+        self.assertEqual(out[:len(expected_version)], expected_version)
         env_dir = os.fsencode(self.env_dir).decode("latin-1")
-        self.assertTrue(out.startswith("pip"))
         self.assertIn(env_dir, out)