diff --git a/assets/root/constinfo.py b/assets/root/constinfo.py
index 02882d91..2425849c 100644
--- a/assets/root/constinfo.py
+++ b/assets/root/constinfo.py
@@ -169,7 +169,7 @@ JewelAccessoryInfos = [
 	]
 def GET_ACCESSORY_MATERIAL_VNUM(vnum, subType):
 	ret = vnum
-	item_base = (vnum / 10) * 10
+	item_base = (vnum // 10) * 10
 	for info in JewelAccessoryInfos:
 		if item.ARMOR_WRIST == subType:	
 			if info[1] == item_base:
@@ -194,10 +194,10 @@ def GET_ACCESSORY_MATERIAL_VNUM(vnum, subType):
 		EAR_ITEM_VNUM_BASE = 17000
 		ret -= EAR_ITEM_VNUM_BASE
 
-	type = ret/20
+	type = ret//20
 
 	if type<0 or type>=len(ACCESSORY_MATERIAL_LIST):
-		type = (ret-170) / 20
+		type = (ret-170) // 20
 		if type<0 or type>=len(ACCESSORY_MATERIAL_LIST):
 			return 0
 
diff --git a/assets/root/localeinfo.py b/assets/root/localeinfo.py
index ea671341..965c0dcd 100644
--- a/assets/root/localeinfo.py
+++ b/assets/root/localeinfo.py
@@ -346,9 +346,9 @@ def SecondToDHM(time):
 	if time < 60:
 		return '0' + MINUTE
 
-	minute = int((time / 60) % 60)
-	hour = int((time / 60) / 60) % 24
-	day = int(int((time / 60) / 60) / 24)
+	minute = (time // 60) % 60
+	hour = ((time // 60) // 60) % 24
+	day = ((time // 60) // 60) // 24
 
 	text = ''
 	if day > 0:
@@ -368,8 +368,8 @@ def SecondToHM(time):
 	if time < 60:
 		return '0' + MINUTE
 
-	minute = int((time / 60) % 60)
-	hour = int((time / 60) / 60)
+	minute = (time // 60) % 60
+	hour = (time // 60) // 60
 
 	text = ''
 	if hour > 0:
diff --git a/assets/root/uimessenger.py b/assets/root/uimessenger.py
index e03d9ee6..cc5ff9f4 100644
--- a/assets/root/uimessenger.py
+++ b/assets/root/uimessenger.py
@@ -188,11 +188,7 @@ class MessengerGroupItem(MessengerItem):
 		self.memberList = []
 
 	def FindMember(self, key):
-		list = list(filter(lambda argMember, argKey=key: argMember.IsSameKey(argKey), self.memberList))
-		if list:
-			return list[0]
-
-		return None
+		return next((m for m in self.memberList if m.IsSameKey(key)), None)
 
 	def GetLoginMemberList(self):
 		return list(filter(MessengerMemberItem.IsOnline, self.memberList))