Revert "Apply suggestion from Brett"

This reverts commit 3e833e0.

Author: zooba

Lib/test/support/import_helper.py

@@ -71,7 +71,7 @@ def make_legacy_pyc(source, allow_compile=False):
     try:
         pyc_file = importlib.util.cache_from_source(source)
         shutil.move(pyc_file, legacy_pyc)
-    except FileNotFoundError, NotImplementedError:
+    except (FileNotFoundError, NotImplementedError):
         if not allow_compile:
             raise
         py_compile.compile(source, legacy_pyc, doraise=True)