fixed python2 venv dependency

Author: Colin Toal

.circleci/config.yml

@@ -13,13 +13,14 @@ jobs:
       - run:
           name: install dependencies
           command: |
-            pip install virtualenv
+            mkdir -p ./venv
+            virtualenv ./venv
             . venv/bin/activate
       - run:
           name: run tests
           command: |
             . venv/bin/activate
-
+        # include tests when not dependent on KDC
   deploy-to-s3:
     docker:
       - image: circleci/python:2.7.15
@@ -28,7 +29,6 @@ jobs:
       - run:
           name: install dependencies
           command: |
-            pip install virtualenv
             . venv/bin/activate
             pip install awscli
       - run: