Rewrite interlace using map(next,cycle())

James William Pye · James William Pye · commit 37cdbebc4816 · 2009-05-05T07:49:23.000-07:00
diff --git a/postgresql/python/itertools.py b/postgresql/python/itertools.py
@@ -19,6 +19,4 @@ def interlace(*iters) -> collections.Iterable:
 		i1-n, i2-n, ..., in-n,
 	)
 	"""
-	iters = [iter(x) for x in iters]
-	for i in cycle(range(len(iters))):
-		yield next(iters[i])
+	return map(next, cycle([iter(x) for x in iters]))

Original file line number	Diff line number	Diff line change
`@@ -19,6 +19,4 @@ def interlace(*iters) -> collections.Iterable:`
`19`	`19`	`i1-n, i2-n, ..., in-n,`
`20`	`20`	`)`
`21`	`21`	`"""`
`22`		`- iters = [iter(x) for x in iters]`
`23`		`- for i in cycle(range(len(iters))):`
`24`		`- yield next(iters[i])`
	`22`	`+ return map(next, cycle([iter(x) for x in iters]))`