指向要安装到指定站点包位置的python模块

Question

I am having an issue when it comes to installing python3.3 modules. The current modules are installing to /usr/lib64/python3.3/site-packages but they need to be installed to /usr/lib/python3.3/site-packages. Is there a way to point the installation to put the modules in the appropriate location?

I am using CentOS 6.6

Answer 1

While you could specify a prefix directory to tell pip to install into a specific place:

pip install --install-option="--prefix=/usr/lib/python3.3/site-packages/" my_module

I would instead heavily recommend learning about and using virtual environments to give you greater control of your Python programming environment.

The creation and activation of a virtual environment looks like this:

pyvenv-3.4 my_new_environment
source my_new_environment/bin/activate
pip install my_module

which will make my_module install reliably inside of my_new_environment .

Whenever you want to "activate" this environment, you simply source the activate script to tell the Python interpreter where to find its libraries!