fix: running from venv

Author: mayeut

Lib/test/test_venv.py

@@ -817,30 +817,30 @@ def test_executable_symlink(self):
     @requires_subprocess()
     @unittest.skipIf(os.name == 'nt', 'not relevant on Windows')
     @unittest.skipUnless(can_symlink(), 'Needs symlinks')
+    @requireVenvCreate
     def test_tree_symlink(self):
         """
         Test creation using a symlink to python tree.
         """
         rmtree(self.env_dir)
-        executable_abspath = os.path.abspath(sys.executable)
-        tree_abspath = os.path.dirname(
-            os.path.dirname(executable_abspath))
+        executable_abspath = os.path.abspath(sys._base_executable)
+        tree_abspath = os.path.dirname(os.path.dirname(executable_abspath))
         with tempfile.TemporaryDirectory() as symlink_dir:
             tree_symlink = os.path.join(
                 os.path.realpath(symlink_dir),
                 os.path.basename(tree_abspath))
             executable_symlink = os.path.join(
                 tree_symlink,
                 os.path.basename(os.path.dirname(executable_abspath)),
-                os.path.basename(sys.executable))
+                os.path.basename(sys._base_executable))
             os.symlink(tree_abspath, tree_symlink)
             cmd = [executable_symlink, "-m", "venv", "--without-pip",
                    self.env_dir]
             subprocess.check_call(cmd)
         data = self.get_text_file_contents('pyvenv.cfg')
         self.assertIn('home = %s' % tree_symlink, data)
         self.assertIn('executable = %s' %
-                      os.path.realpath(sys.executable), data)
+                      os.path.realpath(sys._base_executable), data)
 
 @requireVenvCreate
 class EnsurePipTest(BaseTest):