Give the option to force a run of the pip fixer script, on Ubuntu Trusty.

library/roles/ubuntu-python-setup/defaults/main.yml

@@ -1,6 +1,7 @@
 ---
 python_pkgs_state: present
 python_get_pip_url: https://bootstrap.pypa.io/get-pip.py
+python_force_pip_fix: False
 
 python_basic_pkgs:
   - python-pip

library/roles/ubuntu-python-setup/tasks/main.yml

@@ -9,7 +9,7 @@
 
     - name: Fix the trusty pip installation
       shell: /usr/local/bin/python-pip-fixer
-      when: python_pip_fixer is changed
+      when: python_pip_fixer is changed or python_force_pip_fix
 
     - name: Install the python dev headers and other dev requirements
       apt: pkg={{ python_pip_dev_packages }} state={{ python_pkgs_state }} update_cache=yes cache_valid_time=1800