pip 9.0 works fine without the ssl module

Lib/ensurepip/__init__.py

@@ -16,20 +16,6 @@ _SETUPTOOLS_VERSION = "28.7.1"
 
 _PIP_VERSION = "9.0.0"
 
-# pip currently requires ssl support, so we try to provide a nicer
-# error message when that is missing (http://bugs.python.org/issue19744)
-_MISSING_SSL_MESSAGE = ("pip {} requires SSL/TLS".format(_PIP_VERSION))
-try:
-    import ssl
-except ImportError:
-    ssl = None
-
-    def _require_ssl_for_pip():
-        raise RuntimeError(_MISSING_SSL_MESSAGE)
-else:
-    def _require_ssl_for_pip():
-        pass
-
 _PROJECTS = [
     ("setuptools", _SETUPTOOLS_VERSION),
     ("pip", _PIP_VERSION),
@@ -77,7 +63,6 @@ def bootstrap(root=None, upgrade=False, user=False,
     if altinstall and default_pip:
         raise ValueError("Cannot use altinstall and default_pip together")
 
-    _require_ssl_for_pip()
     _disable_pip_configuration_settings()
 
     # By default, installing pip and setuptools installs all of the
@@ -143,7 +128,6 @@ def _uninstall_helper(verbosity=0):
         print(msg.format(pip.__version__, _PIP_VERSION), file=sys.stderr)
         return
 
-    _require_ssl_for_pip()
     _disable_pip_configuration_settings()
 
     # Construct the arguments to be passed to the pip command
@@ -155,11 +139,6 @@ def _uninstall_helper(verbosity=0):
 
 
 def _main(argv=None):
-    if ssl is None:
-        print("Ignoring ensurepip failure: {}".format(_MISSING_SSL_MESSAGE),
-              file=sys.stderr)
-        return
-
     import argparse
     parser = argparse.ArgumentParser(prog="python -m ensurepip")
     parser.add_argument(

Lib/test/test_ensurepip.py

@@ -9,22 +9,6 @@ import test.test_support
 import ensurepip
 import ensurepip._uninstall
 
-# pip currently requires ssl support, so we ensure we handle
-# it being missing (http://bugs.python.org/issue19744)
-ensurepip_no_ssl = test.test_support.import_fresh_module("ensurepip",
-                                                         blocked=["ssl"])
-try:
-    import ssl
-except ImportError:
-    ssl = None
-
-    def requires_usable_pip(f):
-        deco = unittest.skip(ensurepip._MISSING_SSL_MESSAGE)
-        return deco(f)
-else:
-    def requires_usable_pip(f):
-        return f
-
 
 class TestEnsurePipVersion(unittest.TestCase):
 
@@ -51,7 +35,6 @@ class EnsurepipMixin:
 
 class TestBootstrap(EnsurepipMixin, unittest.TestCase):
 
-    @requires_usable_pip
     def test_basic_bootstrapping(self):
         ensurepip.bootstrap()
 
@@ -66,7 +49,6 @@ class TestBootstrap(EnsurepipMixin, unittest.TestCase):
         additional_paths = self.run_pip.call_args[0][1]
         self.assertEqual(len(additional_paths), 2)
 
-    @requires_usable_pip
     def test_bootstrapping_with_root(self):
         ensurepip.bootstrap(root="/foo/bar/")
 
@@ -79,7 +61,6 @@ class TestBootstrap(EnsurepipMixin, unittest.TestCase):
             mock.ANY,
         )
 
-    @requires_usable_pip
     def test_bootstrapping_with_user(self):
         ensurepip.bootstrap(user=True)
 
@@ -91,7 +72,6 @@ class TestBootstrap(EnsurepipMixin, unittest.TestCase):
             mock.ANY,
         )
 
-    @requires_usable_pip
     def test_bootstrapping_with_upgrade(self):
         ensurepip.bootstrap(upgrade=True)
 
@@ -103,7 +83,6 @@ class TestBootstrap(EnsurepipMixin, unittest.TestCase):
             mock.ANY,
         )
 
-    @requires_usable_pip
     def test_bootstrapping_with_verbosity_1(self):
         ensurepip.bootstrap(verbosity=1)
 
@@ -115,7 +94,6 @@ class TestBootstrap(EnsurepipMixin, unittest.TestCase):
             mock.ANY,
         )
 
-    @requires_usable_pip
     def test_bootstrapping_with_verbosity_2(self):
         ensurepip.bootstrap(verbosity=2)
 
@@ -127,7 +105,6 @@ class TestBootstrap(EnsurepipMixin, unittest.TestCase):
             mock.ANY,
         )
 
-    @requires_usable_pip
     def test_bootstrapping_with_verbosity_3(self):
         ensurepip.bootstrap(verbosity=3)
 
@@ -139,17 +116,14 @@ class TestBootstrap(EnsurepipMixin, unittest.TestCase):
             mock.ANY,
         )
 
-    @requires_usable_pip
     def test_bootstrapping_with_regular_install(self):
         ensurepip.bootstrap()
         self.assertEqual(self.os_environ["ENSUREPIP_OPTIONS"], "install")
 
-    @requires_usable_pip
     def test_bootstrapping_with_alt_install(self):
         ensurepip.bootstrap(altinstall=True)
         self.assertEqual(self.os_environ["ENSUREPIP_OPTIONS"], "altinstall")
 
-    @requires_usable_pip
     def test_bootstrapping_with_default_pip(self):
         ensurepip.bootstrap(default_pip=True)
         self.assertNotIn("ENSUREPIP_OPTIONS", self.os_environ)
@@ -159,7 +133,6 @@ class TestBootstrap(EnsurepipMixin, unittest.TestCase):
             ensurepip.bootstrap(altinstall=True, default_pip=True)
         self.assertFalse(self.run_pip.called)
 
-    @requires_usable_pip
     def test_pip_environment_variables_removed(self):
         # ensurepip deliberately ignores all pip environment variables
         # See http://bugs.python.org/issue19734 for details
@@ -167,7 +140,6 @@ class TestBootstrap(EnsurepipMixin, unittest.TestCase):
         ensurepip.bootstrap()
         self.assertNotIn("PIP_THIS_SHOULD_GO_AWAY", self.os_environ)
 
-    @requires_usable_pip
     def test_pip_config_file_disabled(self):
         # ensurepip deliberately ignores the pip config file
         # See http://bugs.python.org/issue20053 for details
@@ -210,7 +182,6 @@ class TestUninstall(EnsurepipMixin, unittest.TestCase):
         self.assertIn("only uninstall a matching version", warning)
         self.assertFalse(self.run_pip.called)
 
-    @requires_usable_pip
     def test_uninstall(self):
         with fake_pip():
             ensurepip._uninstall_helper()
@@ -222,7 +193,6 @@ class TestUninstall(EnsurepipMixin, unittest.TestCase):
             ]
         )
 
-    @requires_usable_pip
     def test_uninstall_with_verbosity_1(self):
         with fake_pip():
             ensurepip._uninstall_helper(verbosity=1)
@@ -234,7 +204,6 @@ class TestUninstall(EnsurepipMixin, unittest.TestCase):
             ]
         )
 
-    @requires_usable_pip
     def test_uninstall_with_verbosity_2(self):
         with fake_pip():
             ensurepip._uninstall_helper(verbosity=2)
@@ -246,7 +215,6 @@ class TestUninstall(EnsurepipMixin, unittest.TestCase):
             ]
         )
 
-    @requires_usable_pip
     def test_uninstall_with_verbosity_3(self):
         with fake_pip():
             ensurepip._uninstall_helper(verbosity=3)
@@ -258,7 +226,6 @@ class TestUninstall(EnsurepipMixin, unittest.TestCase):
             ]
         )
 
-    @requires_usable_pip
     def test_pip_environment_variables_removed(self):
         # ensurepip deliberately ignores all pip environment variables
         # See http://bugs.python.org/issue19734 for details
@@ -267,7 +234,6 @@ class TestUninstall(EnsurepipMixin, unittest.TestCase):
             ensurepip._uninstall_helper()
         self.assertNotIn("PIP_THIS_SHOULD_GO_AWAY", self.os_environ)
 
-    @requires_usable_pip
     def test_pip_config_file_disabled(self):
         # ensurepip deliberately ignores the pip config file
         # See http://bugs.python.org/issue20053 for details
@@ -276,38 +242,6 @@ class TestUninstall(EnsurepipMixin, unittest.TestCase):
         self.assertEqual(self.os_environ["PIP_CONFIG_FILE"], os.devnull)
 
 
-class TestMissingSSL(EnsurepipMixin, unittest.TestCase):
-
-    def setUp(self):
-        sys.modules["ensurepip"] = ensurepip_no_ssl
-
-        @self.addCleanup
-        def restore_module():
-            sys.modules["ensurepip"] = ensurepip
-        super(TestMissingSSL, self).setUp()
-
-    def test_bootstrap_requires_ssl(self):
-        self.os_environ["PIP_THIS_SHOULD_STAY"] = "test fodder"
-        with self.assertRaisesRegexp(RuntimeError, "requires SSL/TLS"):
-            ensurepip_no_ssl.bootstrap()
-        self.assertFalse(self.run_pip.called)
-        self.assertIn("PIP_THIS_SHOULD_STAY", self.os_environ)
-
-    def test_uninstall_requires_ssl(self):
-        self.os_environ["PIP_THIS_SHOULD_STAY"] = "test fodder"
-        with self.assertRaisesRegexp(RuntimeError, "requires SSL/TLS"):
-            with fake_pip():
-                ensurepip_no_ssl._uninstall_helper()
-        self.assertFalse(self.run_pip.called)
-        self.assertIn("PIP_THIS_SHOULD_STAY", self.os_environ)
-
-    def test_main_exits_early_with_warning(self):
-        with test.test_support.captured_stderr() as stderr:
-            ensurepip_no_ssl._main(["--version"])
-        warning = stderr.getvalue().strip()
-        self.assertTrue(warning.endswith("requires SSL/TLS"), warning)
-        self.assertFalse(self.run_pip.called)
-
 # Basic testing of the main functions and their argument parsing
 
 EXPECTED_VERSION_OUTPUT = "pip " + ensurepip._PIP_VERSION
@@ -315,7 +249,6 @@ EXPECTED_VERSION_OUTPUT = "pip " + ensurepip._PIP_VERSION
 
 class TestBootstrappingMainFunction(EnsurepipMixin, unittest.TestCase):
 
-    @requires_usable_pip
     def test_bootstrap_version(self):
         with test.test_support.captured_stderr() as stderr:
             with self.assertRaises(SystemExit):
@@ -324,7 +257,6 @@ class TestBootstrappingMainFunction(EnsurepipMixin, unittest.TestCase):
         self.assertEqual(result, EXPECTED_VERSION_OUTPUT)
         self.assertFalse(self.run_pip.called)
 
-    @requires_usable_pip
     def test_basic_bootstrapping(self):
         ensurepip._main([])
 
@@ -350,7 +282,6 @@ class TestUninstallationMainFunction(EnsurepipMixin, unittest.TestCase):
         self.assertEqual(result, EXPECTED_VERSION_OUTPUT)
         self.assertFalse(self.run_pip.called)
 
-    @requires_usable_pip
     def test_basic_uninstall(self):
         with fake_pip():
             ensurepip._uninstall._main([])