diff options
| -rw-r--r-- | Lib/random.py | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Lib/random.py b/Lib/random.py index 8925b52..754b295 100644 --- a/Lib/random.py +++ b/Lib/random.py @@ -43,8 +43,8 @@ from math import sqrt as _sqrt, acos as _acos, cos as _cos, sin as _sin from os import urandom as _urandom from _collections_abc import Set as _Set, Sequence as _Sequence from hashlib import sha512 as _sha512 -import itertools as _itertools -import bisect as _bisect +from itertools import accumulate as _accumulate +from bisect import bisect as _bisect import os as _os __all__ = ["Random","seed","random","uniform","randint","choice","sample", @@ -390,12 +390,12 @@ class Random(_random.Random): _int = int n += 0.0 # convert to float for a small speed improvement return [population[_int(random() * n)] for i in range(k)] - cum_weights = list(_itertools.accumulate(weights)) + cum_weights = list(_accumulate(weights)) elif weights is not None: raise TypeError('Cannot specify both weights and cumulative weights') if len(cum_weights) != n: raise ValueError('The number of weights does not match the population') - bisect = _bisect.bisect + bisect = _bisect total = cum_weights[-1] + 0.0 # convert to float hi = n - 1 return [population[bisect(cum_weights, random() * total, 0, hi)] |