From 9d714a9c55f20b280ca867d339526f7b1a8c68bb Mon Sep 17 00:00:00 2001
From: Griatch <griatch@gmail.com>
Date: Tue, 10 Jan 2017 18:31:21 +0100
Subject: [PATCH] Refactor to use list comprehension instead of filter() for
 future py3 compatibility.

---
 evennia/scripts/manager.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/evennia/scripts/manager.py b/evennia/scripts/manager.py
index d763c39a72..c8d8ea483e 100644
--- a/evennia/scripts/manager.py
+++ b/evennia/scripts/manager.py
@@ -85,7 +85,8 @@ class ScriptDBManager(TypedObjectManager):
             script = []
             dbref = self.dbref(key)
             if dbref or dbref == 0:
-                script = filter(None, [self.dbref_search(dbref)])
+                # return either [] or a valid list (never [None])
+                script = [res for res in [self.dbref_search(dbref)] if res]
             if not script:
                 script = self.filter(db_key=key)
             return script