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-rw-r--r--Doc/library/itertools.rst4
1 files changed, 2 insertions, 2 deletions
diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst
index 56d6599..a2d1798 100644
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@@ -1085,8 +1085,8 @@ The following recipes have a more mathematical flavor:
kernel = tuple(kernel)[::-1]
n = len(kernel)
padded_signal = chain(repeat(0, n-1), signal, repeat(0, n-1))
- for window in sliding_window(padded_signal, n):
- yield math.sumprod(kernel, window)
+ windowed_signal = sliding_window(padded_signal, n)
+ return map(math.sumprod, repeat(kernel), windowed_signal)
def polynomial_from_roots(roots):
"""Compute a polynomial's coefficients from its roots.