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[3.8] bpo-36546: Mark first argument as position only (GH-14363) #14364

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Merged
rhettinger merged 1 commit into from
Jun 25, 2019
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[3.8] bpo-36546: Mark first argument as position only (GH-14363) #14364

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2 changes: 1 addition & 1 deletion Lib/statistics.py
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Original file line number Diff line number Diff line change
Expand Up @@ -603,7 +603,7 @@ def multimode(data):
# options make for easier choices and that external packages can be
# used for anything more advanced.

def quantiles(dist, *, n=4, method='exclusive'):
def quantiles(dist, /, *, n=4, method='exclusive'):
'''Divide *dist* into *n* continuous intervals with equal probability.

Returns a list of (n - 1) cut points separating the intervals.
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4 changes: 4 additions & 0 deletions Misc/NEWS.d/next/Library/2019-06-25-05-07-48.bpo-36546.RUcxaK.rst
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@@ -0,0 +1,4 @@
The *dist* argument for statistics.quantiles() is now positional only. The
current name doesn't reflect that the argument can be either a dataset or a
distribution. Marking the parameter as positional avoids confusion and
makes it possible to change the name later.