From 1ace6308cfa478347bd0751142562ea0f2cd7368 Mon Sep 17 00:00:00 2001
From: Andrey Vlasovskikh <andrey.vlasovskikh@jetbrains.com>
Date: Tue, 12 Dec 2017 19:18:39 +0300
Subject: [PATCH] PY-27302 Create a mutable copy of env to put extra vars for
 pre-generated skeletons

---
 .../com/jetbrains/python/sdk/skeletons/PySkeletonGenerator.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/src/com/jetbrains/python/sdk/skeletons/PySkeletonGenerator.java b/python/src/com/jetbrains/python/sdk/skeletons/PySkeletonGenerator.java
index 7f793822a9e8..36dc2f786c10 100644
--- a/python/src/com/jetbrains/python/sdk/skeletons/PySkeletonGenerator.java
+++ b/python/src/com/jetbrains/python/sdk/skeletons/PySkeletonGenerator.java
@@ -171,7 +171,7 @@ public class PySkeletonGenerator {
     }
 
     final Map<String, String> extraEnv = PythonSdkType.getVirtualEnvExtraEnv(binaryPath);
-    final Map<String, String> env = extraEnv != null ? PySdkUtil.mergeEnvVariables(myEnv, extraEnv) : myEnv;
+    final Map<String, String> env = new HashMap<>(extraEnv != null ? PySdkUtil.mergeEnvVariables(myEnv, extraEnv) : myEnv);
 
     if (myPrebuilt) {
       env.put("IS_PREGENERATED_SKELETONS", "1");