Implement users command to see the mutual users of one or more channels and squash some bugs

modules/userinfo.py

@@ -16,17 +16,32 @@ def getWho(query):
             result[i] = f
     return result
 
-def getChansSingle(name, query):
-    query = ["live.chan."+name+"."+i for i in query]
-    result = main.r.sinter(*query)
+def getChansSingle(name, nick):
+    nick = ["live.chan."+name+"."+i for i in nick]
+    result = main.r.sinter(*nick)
     if len(result) == 0:
         return None
     return [i.decode() for i in result]
 
-def getChans(query):
+def getChans(nick):
     result = {}
     for i in main.pool.keys():
-        f = getChansSingle(i, query)
+        f = getChansSingle(i, nick)
+        if f:
+            result[i] = f
+    return result
+
+def getUsersSingle(name, nick):
+    nick = ["live.who."+name+"."+i for i in nick]
+    result = main.r.sinter(*nick)
+    if len(result) == 0:
+        return None
+    return [i.decode() for i in result]
+
+def getUsers(nick):
+    result = {}
+    for i in main.pool.keys():
+        f = getUsersSingle(i, nick)
         if f:
             result[i] = f
     return result