From 949bd166692af0694631542b02e3a2f26a48b455 Mon Sep 17 00:00:00 2001
From: "Jason R. Coombs" <jaraco@jaraco.com>
Date: Mon, 9 Jul 2018 00:07:40 -0400
Subject: Avoid removing packages imported from the root. Fixes #1383.

---
 pkg_resources/extern/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'pkg_resources')

diff --git a/pkg_resources/extern/__init__.py b/pkg_resources/extern/__init__.py
index b4156fec..c1eb9e99 100644
--- a/pkg_resources/extern/__init__.py
+++ b/pkg_resources/extern/__init__.py
@@ -48,7 +48,7 @@ class VendorImporter:
                 # on later Python versions to cause relative imports
                 # in the vendor package to resolve the same modules
                 # as those going through this importer.
-                if sys.version_info > (3, 3):
+                if prefix and sys.version_info > (3, 3):
                     del sys.modules[extant]
                 return mod
             except ImportError:
-- 
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