Create pip.conf from a template, handle proxy network

roles/python/tasks/Unix.yaml

@@ -28,8 +28,15 @@
       dest: ~/.pylintrc
     - src: ~/.config/python/ipython_config.py
       dest: ~/.config/ipython/profile_default/ipython_config.py
-    - src: ~/.config/python/pip.conf
-      dest: ~/.config/pip/pip.conf
+
+# TODO: remove this symbolic link if it exists, don't remove a regular file
+    # - src: ~/.config/python/pip.conf
+    #   dest: ~/.config/pip/pip.conf
+
+- name: create pip.conf from template
+  template:
+    src: pip.conf.j2
+    dest: ~/.config/pip/pip.conf
 
 - name: install pip packages
   pip: