Close #15386: There was a loophole that meant importlib.machinery and imp would sometimes reference an uninitialised copy of importlib._bootstrap
diff --git a/Lib/pkgutil.py b/Lib/pkgutil.py
index 8407b6d..8bdeb32 100644
--- a/Lib/pkgutil.py
+++ b/Lib/pkgutil.py
@@ -2,8 +2,8 @@
 
 import os
 import sys
-import imp
 import importlib
+import imp
 import os.path
 from warnings import warn
 from types import ModuleType