Use the walrus operator when assigning and checking for None.

cogs/commands/get.py

@@ -45,8 +45,7 @@ class GetCog(commands.Cog, name="Get command."):
         )
 
         with Session(engine) as session:
-            category = session.scalar(stmt)
-            if category is None:
+            if (category := session.scalar(stmt)) is None:
                 await interaction.response.send_message("Group or Category was not found.", ephemeral=True)
                 return
 
@@ -77,8 +76,7 @@ class GetCog(commands.Cog, name="Get command."):
         )
 
         with Session(engine) as session:
-            category = session.scalar(stmt)
-            if category is None:
+            if (category := session.scalar(stmt)) is None:
                 await interaction.response.send_message("Group or Category was not found.", ephemeral=True)
                 return
 
@@ -107,8 +105,7 @@ class GetCog(commands.Cog, name="Get command."):
         )
 
         with Session(engine) as session:
-            category = session.scalar(stmt)
-            if category is None:
+            if (category := session.scalar(stmt)) is None:
                 await interaction.response.send_message("Group or Category was not found.", ephemeral=True)
                 return
 
@@ -134,8 +131,7 @@ class GetCog(commands.Cog, name="Get command."):
         stmt = select(CategoryGroup).where(col(CategoryGroup.id) == int(group_id))
 
         with Session(engine) as session:
-            group = session.scalar(stmt)
-            if group is None:
+            if (group := session.scalar(stmt)) is None:
                 await interaction.response.send_message("Group was not found.", ephemeral=True)
                 return
 
@@ -161,8 +157,7 @@ class GetCog(commands.Cog, name="Get command."):
         stmt = select(CategoryGroup).where(col(CategoryGroup.id) == int(group_id))
 
         with Session(engine) as session:
-            group = session.scalar(stmt)
-            if group is None:
+            if (group := session.scalar(stmt)) is None:
                 await interaction.response.send_message("Group was not found.", ephemeral=True)
                 return