Initial data commit

Task/Fibonacci-sequence/Python/fibonacci-sequence-12.py

@@ -0,0 +1,10 @@
+def fib():
+    """Yield fib[n+1] + fib[n]"""
+    yield 1  # have to start somewhere
+    lhs, rhs = fib(), fib()
+    yield next(lhs) # move lhs one iteration ahead
+    while True:
+        yield next(lhs)+next(rhs)
+
+f=fib()
+print [next(f) for _ in range(9)]