使用scipy触发ImportError: cannot import name 'int' from 'numpy'求解决

问题场景 #

Ubuntu 20.04系统，Python版本3.8.10，在PyCharm中运行统计相关代码时触发如下错误：

ImportError: cannot import name 'int' from 'numpy' (/home/tetiana/.local/lib/python3.8/site-packages/numpy/__init__.py)

Full traceback looks like this:
Traceback (most recent call last):
File "/home/tetiana/forVScode/python/first/first_try.py", line 1, in <module>
    from scipy import stats
File "/usr/lib/python3/dist-packages/scipy/stats/__init__.py", line 379, in <module>
    from .stats import *
  File "/usr/lib/python3/dist-packages/scipy/stats/stats.py", line 180, in <module>
    import scipy.special as special
  File "/usr/lib/python3/dist-packages/scipy/special/__init__.py", line 643, in <module>
    from .basic import *
  File "/usr/lib/python3/dist-packages/scipy/special/basic.py", line 19, in <module>
    from . import orthogonal
  File "/usr/lib/python3/dist-packages/scipy/special/orthogonal.py", line 81, in <module>
    from numpy import (exp, inf, pi, sqrt, floor, sin, cos, around, int,
ImportError: cannot import name 'int' from 'numpy' (/home/tetiana/.local/lib/python3.8/site-packages/numpy/__init__.py)

Process finished with exit code 1

运行的代码如下：

from scipy import stats
import pandas as pd

state = pd.read_csv('state_murder_rate_test_table.csv')
state['Population'].mean()
stats.trim_mean(state['Population'], 0.1)
state['Population'].median()

解决方案 #

问题原因 #

系统中安装的scipy版本过旧，与当前numpy版本不兼容。老版本scipy会尝试从numpy导入int别名，但新版本numpy已经移除了这个导入项（numpy.int已被弃用，改用Python内置int或numpy.int_）。同时存在系统包（scipy在/usr/lib路径）和用户本地包（numpy在~/.local路径）的冲突问题。

修复步骤 #

1. 卸载当前的numpy和scipy：

   pip uninstall numpy scipy -y
   

2. 安装适配Python3.8的兼容版本：

   pip install numpy==1.23.5 scipy==1.10.1
   

   这两个版本经过验证，完全支持Python3.8且互相兼容，不会出现int导入错误。
3. 若使用PyCharm虚拟环境，确保在PyCharm内置终端执行命令，或通过File > Settings > Project: [项目名] > Python Interpreter直接安装指定版本的包，保证环境一致性。

内容的提问来源于stack exchange，提问作者joo