Fix version comparison (#337)

fix #334

alternative implementarion for #335

plugins/module_utils/ah_api_module.py

@@ -17,6 +17,7 @@
 import time
 
 from ansible.module_utils.basic import AnsibleModule, env_fallback
+from ansible.module_utils.compat.version import LooseVersion as Version
 from ansible.module_utils._text import to_bytes, to_text
 
 from ansible.module_utils.six.moves.urllib.parse import urlparse, urlencode
@@ -485,9 +486,9 @@ def exit_json(self, **kwargs):
     def get_server_version(self):
         """Return the automation hub/galaxy server version.
 
-        :return: the server version ("4.2.5" for example) or an empty string if
+        :return: the server Version("4.2.5") for example or Version("0") if
                  that information is not available.
-        :rtype: str
+        :rtype: Version
         """
         url = self._build_url(self.galaxy_path_prefix)
         try:
@@ -501,4 +502,6 @@ def get_server_version(self):
             else:
                 fail_msg = "Unable to get server version: {code}".format(code=response["status_code"])
             self.fail_json(msg=fail_msg)
-        return response["json"]["server_version"].replace('dev', '') if "server_version" in response["json"] else ""
+        return Version(
+            response["json"]["server_version"].replace('dev', '') if "server_version" in response["json"] else "0"
+        )