Fix TypeError in help command by handling mixed parameter types for sorting

CHANGELOG.rst

@@ -25,6 +25,8 @@ Other options that were renamed under `[database]` are (more details available i
 
 Fixed
 ~~~~~
+* Fixed #5130 by ensuring consistent sorting of action parameters in the `st2 run <action> -h` command.
+  Converted the `position` attribute to a string for sorting, preventing the `TypeError: '<' not supported between instances of 'str' and 'int'` error in Python 3.
 * Fixed #6021 and #5327 by adding max_page_size to api_opts and added limit and offset to list_values() methods of
   both action_service and sensor_service
 * Fix `packs.get` action. Assumed `master` is primary branch on all packs. #6225

st2client/st2client/commands/action.py

@@ -878,7 +878,7 @@ def transform_array(value, action_params=None, auto_dict=False):
             # the 'result' to the dict type value.
             if all([isinstance(x, str) and ":" in x for x in result]) and auto_dict:
                 result_dict = {}
-                for (k, v) in [x.split(":") for x in result]:
+                for k, v in [x.split(":") for x in result]:
                     # To parse values using the 'transformer' according to the type which is
                     # specified in the action metadata, calling 'normalize' method recursively.
                     if (
@@ -1207,13 +1207,11 @@ def _get_parameter_sort_value(self, parameters, name):
         If this attribute is not available, parameter is sorted based on the
         name.
         """
-        parameter = parameters.get(name, None)
-
-        if not parameter:
-            return None
-
-        sort_value = parameter.get("position", name)
-        return sort_value
+        parameter = parameters.get(name)
+        if parameter:
+            position = parameter.get("position")
+            return position if position is not None else name
+        return None
 
     def _get_inherited_env_vars(self):
         env_vars = os.environ.copy()