线性模型：numpy.ndarray 大小已更改，可能表示二进制不兼容预期来自 C 头文件的 88，来自 PyObject 的 80”

问题描述

当我尝试导入线性模型时出现此错误：“numpy.ndarray 大小已更改，可能表示二进制不兼容。预计来自 C 标头的 88，来自 PyObject 的 80”

我在 Windows 10 上运行 Anaconda,python 3.8.8。这是在新机器上全新安装的 Anaconda Python。

我尝试通过在单独的环境中使用较旧的 NumPy 版本（1.6.1，请参阅此 link）来解决此问题。唉。

这是显示我使用的库的版本的输出，并注意真正的路径不是 c:\users\，而是 c:\users\myusername\

Requirement already satisfied: linearmodels in c:\users\anaconda3\lib\site-packages (4.21)
Requirement already satisfied: pandas>=0.24 in c:\users\anaconda3\lib\site-packages (from linearmodels) (1.2.3)
Requirement already satisfied: pyhdfe>=0.1 in  c:\users\anaconda3\lib\site-packages (from linearmodels) (0.1.0)
Requirement already satisfied: scipy>=1.2 in c:\users\anaconda3\lib\site-packages (from linearmodels) (1.6.1)
Requirement already satisfied: statsmodels>=0.11 in c:\users\anaconda3\lib\site-packages (from linearmodels) (0.12.2)
Requirement already satisfied: mypy-extensions>=0.4 in c:\users\anaconda3\lib\site-packages (from linearmodels) (0.4.3)
Requirement already satisfied: property-cached>=1.6.3 in c:\users\anaconda3\lib\site-packages (from linearmodels) (1.6.4)
Requirement already satisfied: numpy>=1.16 in c:\users\anaconda3\lib\site-packages (from linearmodels) (1.19.2)
Requirement already satisfied: patsy in c:\users\anaconda3\lib\site-packages (from linearmodels) (0.5.1)
Requirement already satisfied: Cython>=0.29.21 in c:\users\anaconda3\lib\site-packages (from linearmodels) (0.29.22)
Requirement already satisfied: python-dateutil>=2.7.3 in c:\users\anaconda3\lib\site-packages (from pandas>=0.24->linearmodels) (2.8.1)
Requirement already satisfied: pytz>=2017.3 in c:\users\anaconda3\lib\site-packages (from pandas>=0.24->linearmodels) (2021.1)
Requirement already satisfied: six>=1.5 in c:\users\anaconda3\lib\site-packages (from python-dateutil>=2.7.3->pandas>=0.24->linearmodels) (1.15.0)

这是他错误的结果：

from linearmodels import PanelOLS
Traceback (most recent call last):

  File "<ipython-input-2-6de63ba6aa3f>",line 1,in <module>
    from linearmodels import PanelOLS
  File "C:\Users\Anaconda3\lib\site-packages\linearmodels\__init__.py",line 38,in <module>
    from .asset_pricing.model import (
  File "C:\Users\Anaconda3\lib\site-packages\linearmodels\asset_pricing\__init__.py",in <module>
    from .model import LinearFactorModel,LinearFactorModelGMM,TradedFactorModel
  File "C:\Users\Anaconda3\lib\site-packages\linearmodels\asset_pricing\model.py",line 13,in <module>
    from linearmodels.asset_pricing.covariance import (
  File "C:\Users\Anaconda3\lib\site-packages\linearmodels\asset_pricing\covariance.py",line 9,in <module>
    from linearmodels.iv.covariance import (
  File "C:\Users\Anaconda3\lib\site-packages\linearmodels\iv\__init__.py",in <module>
    from .absorbing import AbsorbingLS,Interaction  # Flake8: noqa
  File "C:\Users\Anaconda3\lib\site-packages\linearmodels\iv\absorbing.py",line 54,in <module>
    from linearmodels.panel.utility import (
  File "C:\Users\Anaconda3\lib\site-packages\linearmodels\panel\__init__.py",in <module>
    from linearmodels.panel.model import (
  File "C:\Users\Anaconda3\lib\site-packages\linearmodels\panel\model.py",line 28,in <module>
    from linearmodels.panel.utility import (
  File "C:\Users\Anaconda3\lib\site-packages\linearmodels\panel\utility.py",line 24,in <module>
    from linearmodels.panel._utility import _drop_singletons
  File "linearmodels\panel\_utility.pyx",in init linearmodels.panel._utility

ValueError: numpy.ndarray size changed,may indicate binary incompatibility. Expected 88 from C header,got 80 from PyObject

解决方法

已通过更新到最新的线性模型版本解决此问题：4.22