--- a/sat/plugins/plugin_xep_0334.py	Fri Apr 07 15:18:39 2023 +0200
+++ b/sat/plugins/plugin_xep_0334.py	Sat Apr 08 13:54:42 2023 +0200
@@ -48,7 +48,7 @@
         D_(
             """\
              Frontends can use HINT_* constants in mess_data['extra'] in a serialized 'hints' dict.
-             Internal plugins can use directly addHint([HINT_* constant]).
+             Internal plugins can use directly add_hint([HINT_* constant]).
              Will set mess_data['extra']['history'] to 'skipped' when no store is requested and message is not saved in history."""
         )
     ),
@@ -67,13 +67,13 @@
     def __init__(self, host):
         log.info(_("Message Processing Hints plugin initialization"))
         self.host = host
-        host.trigger.add("sendMessage", self.sendMessageTrigger)
-        host.trigger.add("messageReceived", self.messageReceivedTrigger, priority=-1000)
+        host.trigger.add("sendMessage", self.send_message_trigger)
+        host.trigger.add("messageReceived", self.message_received_trigger, priority=-1000)
 
-    def getHandler(self, client):
+    def get_handler(self, client):
         return XEP_0334_handler()
 
-    def addHint(self, mess_data, hint):
+    def add_hint(self, mess_data, hint):
         if hint == self.HINT_NO_COPY and not mess_data["to"].resource:
             log.error(
                 "{hint} can only be used with full jids! Ignoring it.".format(hint=hint)
@@ -85,7 +85,7 @@
         else:
             log.error("Unknown hint: {}".format(hint))
 
-    def addHintElements(self, message_elt: domish.Element, hints: Iterable[str]) -> None:
+    def add_hint_elements(self, message_elt: domish.Element, hints: Iterable[str]) -> None:
         """Add hints elements to message stanza
 
         @param message_elt: stanza where hints must be added
@@ -97,27 +97,27 @@
             else:
                 log.debug('Not adding {hint!r} hint: it is already present in <message>')
 
-    def _sendPostXmlTreatment(self, mess_data):
+    def _send_post_xml_treatment(self, mess_data):
         if "hints" in mess_data:
-            self.addHintElements(mess_data["xml"], mess_data["hints"])
+            self.add_hint_elements(mess_data["xml"], mess_data["hints"])
         return mess_data
 
-    def sendMessageTrigger(
+    def send_message_trigger(
         self, client, mess_data, pre_xml_treatments, post_xml_treatments
     ):
         """Add the hints element to the message to be sent"""
         if "hints" in mess_data["extra"]:
             for hint in data_format.dict2iter("hints", mess_data["extra"], pop=True):
-                self.addHint(hint)
+                self.add_hint(hint)
 
-        post_xml_treatments.addCallback(self._sendPostXmlTreatment)
+        post_xml_treatments.addCallback(self._send_post_xml_treatment)
         return True
 
-    def _receivedSkipHistory(self, mess_data):
+    def _received_skip_history(self, mess_data):
         mess_data["history"] = C.HISTORY_SKIP
         return mess_data
 
-    def messageReceivedTrigger(self, client, message_elt, post_treat):
+    def message_received_trigger(self, client, message_elt, post_treat):
         """Check for hints in the received message"""
         for elt in message_elt.elements():
             if elt.uri == NS_HINTS and elt.name in (
@@ -125,7 +125,7 @@
                 self.HINT_NO_STORE,
             ):
                 log.debug("history will be skipped for this message, as requested")
-                post_treat.addCallback(self._receivedSkipHistory)
+                post_treat.addCallback(self._received_skip_history)
                 break
         return True