1 files changed, 11 insertions, 0 deletions
diff --git a/Lib/test/test_importlib/util.py b/Lib/test/test_importlib/util.py
index b0badebc2b8..196ea1c9d4d 100644
--- a/Lib/test/test_importlib/util.py
+++ b/Lib/test/test_importlib/util.py
@@ -320,6 +320,17 @@ def ensure_bytecode_path(bytecode_path):
 
 
 @contextlib.contextmanager
+def temporary_pycache_prefix(prefix):
+    """Adjust and restore sys.pycache_prefix."""
+    _orig_prefix = sys.pycache_prefix
+    sys.pycache_prefix = prefix
+    try:
+        yield
+    finally:
+        sys.pycache_prefix = _orig_prefix
+
+
+@contextlib.contextmanager
 def create_modules(*names):
     """Temporarily create each named module with an attribute (named 'attr')
     that contains the name passed into the context manager that caused the