- Added a more generic tuplesdo.py

test/tuplesdo.py

@@ -0,0 +1,21 @@
+# Tuple module
+#
+# tuplesDo generates all unordered sets (in a list) of size n of the
+# elements of the list l. The resulting lists (of length n) are passed
+# to the function f.
+
+def tuplesDo (f,l,n):
+	def tuplesDoRecurse (l,r):
+		if r and (len(r) == n):
+			f(r)
+		else:
+			if l and (n > 0):
+				# Larger size: we have options
+				# Option 1: include first
+				tuplesDoRecurse (l[1:], r + [l[0]])
+				# Option 2: exclude first
+				tuplesDoRecurse (l[1:], r)
+
+	tuplesDoRecurse (l,[])
+
+