How can I make pip install package one by one?

问题:

I have a long requirements.txt and my network environment is not stable. Using pip install -r pip_requirements.txt will never make a successful install. Because if the connection is lost during the install and after I restart the install process, pip will download these packages from the beginning again. It would not use these packages that have been downloaded.

How can I make pip install package one by one rather than install after it have successfully downloaded all of the packages?

回答1:

Try the option

pip install --download-cache="/folder/"

It will allow you to save the files to a local folder for later use. You can also use

pip install --download="/folder/"

to just download and not install.