diff --git a/Lib/ensurepip/__init__.py b/Lib/ensurepip/__init__.py

index 09c572d..167d27b 100644

--- a/Lib/ensurepip/__init__.py

+++ b/Lib/ensurepip/__init__.py

@@ -1,16 +1,27 @@

+import distutils.version

+import glob

 import os

 import os.path

-import pkgutil

 import sys

 import tempfile

 __all__ = ["version", "bootstrap"]

+_WHEEL_DIR = "/usr/share/python{}-wheels/".format(sys.version_info[0])

-_SETUPTOOLS_VERSION = "40.6.2"

+def _get_most_recent_wheel_version(pkg):

+    prefix = os.path.join(_WHEEL_DIR, "{}-".format(pkg))

+    suffix = "-py2.py3-none-any.whl"

+    pattern = "{}*{}".format(prefix, suffix)

+    versions = (p[len(prefix):-len(suffix)] for p in glob.glob(pattern))

+    return str(max(versions, key=distutils.version.LooseVersion))

+

+

+_SETUPTOOLS_VERSION = _get_most_recent_wheel_version("setuptools")

+

+_PIP_VERSION = _get_most_recent_wheel_version("pip")

-_PIP_VERSION = "18.1"

 _PROJECTS = [

     ("setuptools", _SETUPTOOLS_VERSION),

@@ -23,9 +34,15 @@ def _run_pip(args, additional_paths=None):

     if additional_paths is not None:

         sys.path = additional_paths + sys.path

-    # Install the bundled software

-    import pip._internal

-    return pip._internal.main(args)

+    try:

+        # pip 10

+        from pip._internal import main

+    except ImportError:

+        # pip 9

+        from pip import main

+    if args[0] in ["install", "list", "wheel"]:

+        args.append('--pre')

+    return main(args)

 def version():

@@ -94,12 +111,9 @@ def _bootstrap(*, root=None, upgrade=False, user=False,

         additional_paths = []

         for project, version in _PROJECTS:

             wheel_name = "{}-{}-py2.py3-none-any.whl".format(project, version)

-            whl = pkgutil.get_data(

-                "ensurepip",

-                "_bundled/{}".format(wheel_name),

-            )

-            with open(os.path.join(tmpdir, wheel_name), "wb") as fp:

-                fp.write(whl)

+            with open(os.path.join(_WHEEL_DIR, wheel_name), "rb") as sfp:

+                with open(os.path.join(tmpdir, wheel_name), "wb") as fp:

+                    fp.write(sfp.read())

             additional_paths.append(os.path.join(tmpdir, wheel_name))