GH-87915: create a venv executable with the same name as sys.executable

Lib/test/test_venv.py

@@ -888,6 +888,17 @@ def test_venvwlauncher(self):
         except subprocess.CalledProcessError:
             self.fail("venvwlauncher.exe did not run %s" % exename)
 
+    def test_ensure_sys_executable_name(self):
+        """
+        Test that we create a executable with the same name as sys.executable.
+        """
+        rmtree(self.env_dir)
+        executable_dir = os.path.dirname(sys.executable)
+        with patch('sys.executable', os.path.join(executable_dir, 'some-custom-name')):
+            venv.create(self.env_dir)
+        scripts_dir = os.path.join(self.env_dir, self.bindir)
+        self.assertIn('some-custom-name', os.listdir(scripts_dir))
+
 
 @requireVenvCreate
 class EnsurePipTest(BaseTest):

Lib/venv/__init__.py

@@ -314,9 +314,14 @@ def setup_python(self, context):
             if not os.path.islink(path):
                 os.chmod(path, 0o755)
 
-            suffixes = ['python', 'python3', f'python3.{sys.version_info[1]}']
+            suffixes = {
+                'python',
+                'python3',
+                f'python3.{sys.version_info[1]}',
+                os.path.basename(sys.executable),
+            }
             if sys.version_info[:2] == (3, 14):
-                suffixes.append('𝜋thon')
+                suffixes.add('𝜋thon')
             for suffix in suffixes:
                 path = os.path.join(binpath, suffix)
                 if not os.path.exists(path):
@@ -388,6 +393,10 @@ def setup_python(self, context):
                     f'pythonw{exe_t}{exe_d}.exe': pythonw_exe,
                 }
 
+            for sources_dict in (link_sources, copy_sources):
+                if exename not in sources_dict:
+                    sources_dict[exename] = python_exe
+
             do_copies = True
             if self.symlinks:
                 do_copies = False

Misc/NEWS.d/next/Library/2025-01-31-03-36-13.gh-issue-129382.TADOXp.rst

@@ -0,0 +1,2 @@
+We now make sure :mod:`venv` creates an executable with the same name as
+:data:`sys.executable` in environments.