E：软件包'python-scipy'没有安装候选

Question

安装软件时，我多次发现以下错误。

$ sudo python setup.py install
Traceback (most recent call last):
File "setup.py", line 24, in <module>
from software_name import PACKAGE_NAME
File "/home/username/Softwares/software_name/__init__.py", line 29, in <module>
import scipy
ImportError: No module named scipy

我可以用sudo apt-get install -y python-numpy安装许多缺失的模块，但有时我会得到：

username@username:~/Softwares/software_name$ sudo apt-get install -y python-scipy
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package python-scipy is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'python-scipy' has no installation candidate

我真的不确定发生了什么？

Answer 1

您想要的包是python3-scipy，而不是python-scipy。它可以使用安装：

apt install python3-scipy

您最好通过pip(对于Python 2(或pip3(对于Python 3(安装scipy。pip是Python包的包管理器。

pip install scipy

或

pip3 install scipy

如果将来遇到类似的问题，可以使用pip3搜索scipy和相关搜索词来查找所需的包。查看manpip3了解详细信息。