`TestPopulationSamplers` started failing in the CI

描述

FAILED tests/sampling/test_population.py::TestPopulationSamplers::test_checks_population_size - ValueError: setting an array element with a sequence.
FAILED tests/sampling/test_population.py::TestPopulationSamplers::test_demcmc_warning_on_small_populations - ValueError: setting an array element with a sequence.
FAILED tests/sampling/test_population.py::TestPopulationSamplers::test_nonparallelized_chains_are_random - ValueError: setting an array element with a sequence.
FAILED tests/sampling/test_population.py::TestPopulationSamplers::test_parallelized_chains_are_random - ValueError: setting an array element with a sequence.

贡献者指南

技术栈

python

领域

machine learningtesting

议题类型

bug

难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。

3

预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。

half day

活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。

fresh

清晰度议题是否清楚说明期望改动、验收标准和下一步。

mostly clear

前置要求

Pythonpytestnumpy

新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。

60

研究方向

The failing tests are in tests/sampling/test population.py. The error 'ValueError: setting an array element with a sequence' suggests a shape mismatch when constructing numpy arrays. Start by reproducing the issue locally with the same dependencies. Look at recent commits or dependency changes (e.g., numpy) that might have caused this. Inspect the test functions, particularly how population samples are generated, and ensure array inputs are properly shaped.