thomasvnl · October 4, 2016 12:56 · Oct 4, 2016
diff --git a/promote_item_to_first_position.py b/promote_item_to_first_position.py
@@ -0,0 +1,18 @@
+def promote_item_to_first_position(enumerator, key, value):
+    """
+    Promotes an item to the first index of the list if it isn't already there. It moves the item from it's current
+    position and resets the list's indexes. Be careful to not use this on a giant list, because the operation could
+    be quite heavy. With small lists the impact is not noticeable.
+    :param enumerator:
+    :param key:
+    :param value:
+    :return:
+    """
+    for idx, item in enumerate(enumerator):
+        if item[key] == value:
+            if idx != 0:
+                del enumerator[idx]
+                enumerator.insert(0, item)
+            break
+
+    return enumerator