New module argument to specify the executable used for running 'easy_install'. This allows support for system installation of packages on systems with multiple installations of Python.

library/packaging/easy_install

@@ -57,6 +57,16 @@ options:
         C(pyvenv), C(virtualenv), C(virtualenv2).
     required: false
     default: virtualenv
+  executable:
+    description:
+      - The explicit executable or a pathname to the executable to be used to
+        run easy_install for a specific version of Python installed in the
+        system. For example C(easy_install-3.3), if there are both Python 2.7
+        and 3.3 installations in the system and you want to run easy_install
+        for the Python 3.3 installation.
+version_added: "1.3"
+    required: false
+    default: null
 notes:
     - Please note that the M(easy_install) module can only install Python
       libraries. Thus this module is not able to remove libraries. It is
@@ -88,12 +98,14 @@ def main():
         virtualenv=dict(default=None, required=False),
         virtualenv_site_packages=dict(default='no', type='bool'),
         virtualenv_command=dict(default='virtualenv', required=False),
+        executable=dict(default='easy_install', required=False),
     )
 
     module = AnsibleModule(argument_spec=arg_spec, supports_check_mode=True)
 
     name = module.params['name']
     env = module.params['virtualenv']
+    easy_install = module.get_bin_path(module.params['executable'], True, ['%s/bin' % env])
     site_packages = module.params['virtualenv_site_packages']
     virtualenv_command = module.params['virtualenv_command']