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Diffstat (limited to 'resources/tools/presentation/utils.py')
| -rw-r--r-- | resources/tools/presentation/utils.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/resources/tools/presentation/utils.py b/resources/tools/presentation/utils.py index 2fbf70cadc..0e72a06343 100644 --- a/resources/tools/presentation/utils.py +++ b/resources/tools/presentation/utils.py @@ -36,7 +36,10 @@ def mean(items): :rtype: float """ - return float(sum(items)) / len(items) + if len(items): + return float(sum(items)) / len(items) + else: + return None def stdev(items): |