gh-95299: Stop installing setuptools as a part of ensurepip and venv (#101039)

Remove the bundled setuptools wheel from ensurepip, and stop installing setuptools in environments created by venv.

Co-Authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
Co-authored-by: Oleg Iarygin <oleg@arhadthedev.net>

2 files changed, 7 insertions, 9 deletions

diff --git a/Lib/ensurepip/__init__.py b/Lib/ensurepip/__init__.py
index 00e7774..69b23de 100644
--- a/Lib/ensurepip/__init__.py
+++ b/Lib/ensurepip/__init__.py
@@ -9,11 +9,9 @@ from importlib import resources
 
 
 __all__ = ["version", "bootstrap"]
-_PACKAGE_NAMES = ('setuptools', 'pip')
-_SETUPTOOLS_VERSION = "65.5.0"
+_PACKAGE_NAMES = ('pip',)
 _PIP_VERSION = "23.0.1"
 _PROJECTS = [
-    ("setuptools", _SETUPTOOLS_VERSION, "py3"),
     ("pip", _PIP_VERSION, "py3"),
 ]
 
@@ -153,17 +151,17 @@ def _bootstrap(*, root=None, upgrade=False, user=False,
 
     _disable_pip_configuration_settings()
 
-    # By default, installing pip and setuptools installs all of the
+    # By default, installing pip installs all of the
     # following scripts (X.Y == running Python version):
     #
-    #   pip, pipX, pipX.Y, easy_install, easy_install-X.Y
+    #   pip, pipX, pipX.Y
     #
     # pip 1.5+ allows ensurepip to request that some of those be left out
     if altinstall:
-        # omit pip, pipX and easy_install
+        # omit pip, pipX
         os.environ["ENSUREPIP_OPTIONS"] = "altinstall"
     elif not default_pip:
-        # omit pip and easy_install
+        # omit pip
         os.environ["ENSUREPIP_OPTIONS"] = "install"
 
     with tempfile.TemporaryDirectory() as tmpdir:
@@ -271,14 +269,14 @@ def _main(argv=None):
         action="store_true",
         default=False,
         help=("Make an alternate install, installing only the X.Y versioned "
-              "scripts (Default: pipX, pipX.Y, easy_install-X.Y)."),
+              "scripts (Default: pipX, pipX.Y)."),
     )
     parser.add_argument(
         "--default-pip",
         action="store_true",
         default=False,
         help=("Make a default pip install, installing the unqualified pip "
-              "and easy_install in addition to the versioned scripts."),
+              "in addition to the versioned scripts."),
     )
 
     args = parser.parse_args(argv)
diff --git a/Lib/ensurepip/_bundled/setuptools-65.5.0-py3-none-any.whl b/Lib/ensurepip/_bundled/setuptools-65.5.0-py3-none-any.whl
deleted file mode 100644
index 123a13e..0000000
--- a/Lib/ensurepip/_bundled/setuptools-65.5.0-py3-none-any.whl
+++ /dev/null