fddf

files/helpers/lazy.py

@@ -0,0 +1,20 @@
+# Prevents certain properties from having to be recomputed each time they
+# are referenced
+
+
+def lazy(f):
+
+	def wrapper(*args, **kwargs):
+
+		o = args[0]
+
+		if "_lazy" not in o.__dict__:
+			o.__dict__["_lazy"] = {}
+
+		if f.__name__ not in o.__dict__["_lazy"]:
+			o.__dict__["_lazy"][f.__name__] = f(*args, **kwargs)
+
+		return o.__dict__["_lazy"][f.__name__]
+
+	wrapper.__name__ = f.__name__
+	return wrapper