线性模型: numpy.ndarray大小变化，可能表示二进制不兼容。预期88来自C头，80来自PyObject“

Question

当我试图导入线性模型时，我得到了这个错误："numpy.ndarray大小改变了，可能表示二进制不兼容。预期88来自C头，80来自PyObject“

我在Windows 10上运行Anaconda，python 3.8.8，它是在一台新机器上新安装的Anaconda。

我试图在一个单独的环境中使用一个旧的NumPy版本(1.6.1，请参阅此link)来解决这个问题。天哪。

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)

这就是他所犯的错误：

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", line 1, 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", line 1, 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", line 1, 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", line 1, in init linearmodels.panel._utility

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

Answer 1

通过更新到最新的线性模型版本: 4.22，解决了这个问题。