diff options
Diffstat (limited to 'Lib/random.py')
| -rw-r--r-- | Lib/random.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Lib/random.py b/Lib/random.py index 3243938282..f1df18d5c1 100644 --- a/Lib/random.py +++ b/Lib/random.py @@ -367,9 +367,12 @@ class Random(_random.Random): # causing them to eat more entropy than necessary. if isinstance(population, _Set): + _warn('Sampling from a set deprecated\n' + 'since Python 3.9 and will be removed in a subsequent version.', + DeprecationWarning, 2) population = tuple(population) if not isinstance(population, _Sequence): - raise TypeError("Population must be a sequence or set. For dicts, use list(d).") + raise TypeError("Population must be a sequence. For dicts or sets, use sorted(d).") randbelow = self._randbelow n = len(population) if not 0 <= k <= n: |