1 files changed, 13 insertions, 0 deletions
diff --git a/django/utils/module_loading.py b/django/utils/module_loading.py
index 8868a2d3ab..0c6bad2a7b 100644
--- a/django/utils/module_loading.py
+++ b/django/utils/module_loading.py
@@ -1,5 +1,6 @@
 from __future__ import absolute_import  # Avoid importing `importlib` from this package.
 
+from contextlib import contextmanager
 import copy
 import imp
 from importlib import import_module
@@ -35,6 +36,18 @@ def import_by_path(dotted_path, error_prefix=''):
     return attr
 
 
+@contextmanager
+def import_lock():
+    """
+    Context manager that aquires the import lock.
+    """
+    imp.acquire_lock()
+    try:
+        yield
+    finally:
+        imp.release_lock()
+
+
 def autodiscover_modules(*args, **kwargs):
     """
     Auto-discover INSTALLED_APPS modules and fail silently when