diff --git a/python-virtualenv/defaults/main.yml b/python-virtualenv/defaults/main.yml
index 0f7833d..e757624 100644
--- a/python-virtualenv/defaults/main.yml
+++ b/python-virtualenv/defaults/main.yml
@@ -5,10 +5,10 @@ py_virtenv_pkgs:
   - python-pip
   - python-virtualenv
 
-# py_virtenv_pip_pkgs:
-#   - pip_pkg_foo
-#   - pip_pkg_bar
+py_virtenv_pip_pkgs:
+  -
 
 # py_virtenv_pip_requirements: "/tmp/foo/requirements.txt"
-
-py_virtenv_env_base_dir: "/tmp/foo"
+#
+# py_virtenv_env_base_dir: "/tmp/foo"
+py_virtenv_env_base_dir:
diff --git a/python-virtualenv/tasks/main.yml b/python-virtualenv/tasks/main.yml
index efc6bba..2474b17 100644
--- a/python-virtualenv/tasks/main.yml
+++ b/python-virtualenv/tasks/main.yml
@@ -1,40 +1,34 @@
 ---
-- name: Install the python virtualenv packages
-  apt: name={{ item }} state={{ py_virtenv_pkgs_state }}
-  with_items: py_virtenv_pkgs
-  tags: [ "python", "py_virtenv" ]
+- block:
+    
+    - name: Install the python virtualenv packages
+      apt: name={{ item }} state={{ py_virtenv_pkgs_state }}
+      with_items: '{{ py_virtenv_pkgs }}'
 
-- name: Create the virtenv environments.
-  command: virtualenv {{ py_virtenv_env_base_dir }}
-  tags: [ "python", "py_virtenv" ]
+    - name: Create the virtenv environments.
+      command: virtualenv {{ py_virtenv_env_base_dir }}
+      when: '{{ py_virtenv_env_base_dir }} != ""'
 
-- name: Install a list of pip packages inside the virtualenv, inherit the global site-packages
-  pip: name={{ item }} virtualenv={{ py_virtenv_env_base_dir }} virtualenv_site_packages=yes
-  with_items: py_virtenv_pip_pkgs
-  when:
-    - py_virtenv_pip_pkgs is defined
-    - py_virtenv_site
-  tags: [ "python", "py_virtenv" ]
+    - name: Install a list of pip packages inside the virtualenv, inherit the global site-packages
+      pip: name={{ item }} virtualenv={{ py_virtenv_env_base_dir }} virtualenv_site_packages=yes
+      with_items: '{{ py_virtenv_pip_pkgs | default ([]) }}'
+      when: py_virtenv_site
 
-- name: Install a list of pip packages inside the virtualenv
-  pip: name={{ item }} virtualenv={{ py_virtenv_env_base_dir }}
-  with_items: py_virtenv_pip_pkgs
-  when:
-    - py_virtenv_pip_pkgs is defined
-    - not py_virtenv_site
-  tags: [ "python", "py_virtenv" ]
+    - name: Install a list of pip packages inside the virtualenv
+      pip: name={{ item }} virtualenv={{ py_virtenv_env_base_dir }}
+      with_items: '{{ py_virtenv_pip_pkgs | default ([]) }}'
+      when: not py_virtenv_site
 
-- name: Install a list of pip packages inside the virtualenv from a requirements.txt file, inherit the global site-packages
-  pip: requirements={{ py_virtenv_pip_requirements }} virtualenv={{ py_virtenv_env_base_dir }} virtualenv_site_packages=yes
-  when:
-    - py_virtenv_pip_requirements is defined
-    - py_virtenv_site
-  tags: [ "python", "py_virtenv" ]
+    - name: Install a list of pip packages inside the virtualenv from a requirements.txt file, inherit the global site-packages
+      pip: requirements={{ py_virtenv_pip_requirements }} virtualenv={{ py_virtenv_env_base_dir }} virtualenv_site_packages=yes
+      when: 
+        - py_virtenv_pip_requirements is defined
+        - py_virtenv_site
 
-- name: Install a list of pip packages inside the virtualenv from a requirements.txt file
-  pip: requirements={{ py_virtenv_pip_requirements }} virtualenv={{ py_virtenv_env_base_dir }}
-  when:
-    - py_virtenv_pip_requirements is defined
-    - not py_virtenv_site
-  tags: [ "python", "py_virtenv" ]
+    - name: Install a list of pip packages inside the virtualenv from a requirements.txt file
+      pip: requirements={{ py_virtenv_pip_requirements }} virtualenv={{ py_virtenv_env_base_dir }}
+      when:
+        - py_virtenv_pip_requirements is defined
+        - not py_virtenv_site
 
+  tags: [ "python", "py_virtenv" ]