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-rw-r--r--Lib/statistics.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/Lib/statistics.py b/Lib/statistics.py
index 25a26d4..3972ed2 100644
--- a/Lib/statistics.py
+++ b/Lib/statistics.py
@@ -150,7 +150,7 @@ def _sum(data, start=0):
# We fail as soon as we reach a value that is not an int or the type of
# the first value which is not an int. E.g. _sum([int, int, float, int])
# is okay, but sum([int, int, float, Fraction]) is not.
- allowed_types = set([int, type(start)])
+ allowed_types = {int, type(start)}
n, d = _exact_ratio(start)
partials = {d: n} # map {denominator: sum of numerators}
# Micro-optimizations.
@@ -168,7 +168,7 @@ def _sum(data, start=0):
assert allowed_types.pop() is int
T = int
else:
- T = (allowed_types - set([int])).pop()
+ T = (allowed_types - {int}).pop()
if None in partials:
assert issubclass(T, (float, Decimal))
assert not math.isfinite(partials[None])