From: Raymond Hettinger <rhettinger@users.noreply.github.com>
Date: Sat, 21 Sep 2019 04:46:52 +0000 (-0700)
Subject: Minor code and comment cleanup (GH-16315)
X-Git-Tag: v3.9.0a1~370
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7ce4bfa8cfcc78d03e164f2de64a2caad1d919af;p=thirdparty%2FPython%2Fcpython.git

Minor code and comment cleanup (GH-16315)
---

diff --git a/Lib/statistics.py b/Lib/statistics.py
index d81596e5d8ab..0d747b3d6c05 100644
--- a/Lib/statistics.py
+++ b/Lib/statistics.py
@@ -555,8 +555,9 @@ def mode(data):
 
     """
     data = iter(data)
+    pairs = Counter(data).most_common(1)
     try:
-        return Counter(data).most_common(1)[0][0]
+        return pairs[0][0]
     except IndexError:
         raise StatisticsError('no mode for empty data') from None
 
@@ -602,6 +603,7 @@ def multimode(data):
 # mean=0.300.  Only the latter (which corresponds with R6) gives the
 # desired cut point with 30% of the population falling below that
 # value, making it comparable to a result from an inv_cdf() function.
+# The R6 exclusive method is also idempotent.
 
 # For describing population data where the end points are known to
 # be included in the data, the R7 inclusive method is a reasonable