modules: update code to python3 (#10904)

* modules: update code to python3

* pamd: rollback changes

* add changelog frag

* fix/improve assignments using generators

* Update plugins/modules/launchd.py

Co-authored-by: Felix Fontein <felix@fontein.de>

---------

Co-authored-by: Felix Fontein <felix@fontein.de>

plugins/modules/haproxy.py

@@ -297,7 +297,7 @@ class HAProxy(object):
         """
         data = self.execute('show stat', 200, False).lstrip('# ')
         r = csv.DictReader(data.splitlines())
-        return tuple(map(lambda d: d['pxname'], filter(lambda d: d['svname'] == 'BACKEND', r)))
+        return tuple(d['pxname'] for d in r if d['svname'] == 'BACKEND')
 
     def discover_version(self):
         """
@@ -346,13 +346,11 @@ class HAProxy(object):
         """
         data = self.execute('show stat', 200, False).lstrip('# ')
         r = csv.DictReader(data.splitlines())
-        state = tuple(
-            map(
-                lambda d: {'status': d['status'], 'weight': d['weight'], 'scur': d['scur']},
-                filter(lambda d: (pxname is None or d['pxname']
-                                  == pxname) and d['svname'] == svname, r)
-            )
-        )
+
+        def unpack_state(d):
+            return {'status': d['status'], 'weight': d['weight'], 'scur': d['scur']}
+
+        state = tuple(unpack_state(d) for d in r if (pxname is None or d['pxname'] == pxname) and d['svname'] == svname)
         return state or None
 
     def wait_until_status(self, pxname, svname, status):