From db3c120aa773aef4762f49b4ae4fc77215a288d6 Mon Sep 17 00:00:00 2001
From: Mike Auty <mike.auty@gmail.com>
Date: Fri, 5 Apr 2019 14:53:41 +0100
Subject: [PATCH] Fix up typing for the import warning spec.

---
 volatility/__init__.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/volatility/__init__.py b/volatility/__init__.py
index 52ece080b..dcadc9950 100644
--- a/volatility/__init__.py
+++ b/volatility/__init__.py
@@ -20,6 +20,7 @@
 """Volatility 3 - An open-source memory forensics framework"""
 import sys
 from importlib import abc
+from typing import List
 
 
 class WarningFindSpec(abc.MetaPathFinder):
@@ -32,8 +33,8 @@ class WarningFindSpec(abc.MetaPathFinder):
             raise Warning("Please do not use the volatility.framework.plugins namespace, only use volatility.plugins")
 
 
-if WarningFindSpec not in sys.meta_path:
-    sys.meta_path = [WarningFindSpec] + sys.meta_path
+warning_find_spec = [WarningFindSpec()]  # type: List[abc.MetaPathFinder]
+sys.meta_path = warning_find_spec + sys.meta_path
 
 # We point the volatility.plugins __path__ variable at BOTH
 #   volatility/plugins