Work on big refactor

YtManagerApp/utils/iterutils.py

@@ -0,0 +1,12 @@
+def first_true(*args, default=False, pred=None):
+    """Returns the first true value in the iterable.
+
+    If no true value is found, returns *default*
+
+    If *pred* is not None, returns the first item
+    for which pred(item) is true.
+
+    """
+    # first_true([a,b,c], x) --> a or b or c or x
+    # first_true([a,b], x, f) --> a if f(a) else b if f(b) else x
+    return next(filter(pred, args), default)