Index: libcst-0.4.9/libcst/codemod/tests/test_codemod_cli.py
===================================================================
--- libcst-0.4.9.orig/libcst/codemod/tests/test_codemod_cli.py
+++ libcst-0.4.9/libcst/codemod/tests/test_codemod_cli.py
@@ -4,7 +4,7 @@
 # LICENSE file in the root directory of this source tree.
 #
 
-
+import sys
 import subprocess
 from pathlib import Path
 
@@ -16,7 +16,7 @@ class TestCodemodCLI(UnitTest):
     def test_codemod_formatter_error_input(self) -> None:
         rlt = subprocess.run(
             [
-                "python",
+                sys.executable,
                 "-m",
                 "libcst.tool",
                 "codemod",