How to use Python's pip to download and keep the zipped files for a package?

Question

The --download-cache option should do what you want:

pip install --download-cache="/pth/to/downloaded/files" package

However, when I tested this, the main package downloaded, saved and installed ok, but the the dependencies were saved with their full url path as the name - a bit annoying, but all the tar.gz files were there.

The --download option downloads the main package and its dependencies and does not install any of them. (Note that prior to version 1.1 the --download option did not download dependencies.)

pip install package --download="/pth/to/downloaded/files"

The pip documentation outlines using --download for fast & local installs.

pip install --download is deprecated. Starting from version 8.0.0 you should use pip download command:

 pip download <package-name>

I always do this to download the packages:

pip install --download /path/to/download/to_packagename

OR

pip install --download=/path/to/packages/downloaded -r requirements.txt

And when I want to install all of those libraries I just downloaded, I do this:

pip install --no-index --find-links="/path/to/downloaded/dependencies" packagename

OR

pip install --no-index --find-links="/path/to/downloaded/packages" -r requirements.txt

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Update

Also, to get all the packages installed on one system, you can export them all to requirement.txt that will be used to intall them on another system, we do this:

pip freeze > requirement.txt

Then, the requirement.txt can be used as above for download, or do this to install them from requirement.txt:

pip install -r requirement.txt

REFERENCE: pip installer

Use pip download <package1 package2 package n> to download all the packages including dependencies

Use pip install --no-index --find-links . <package1 package2 package n> to install all the packages including dependencies. It gets all the files from CWD. It will not download anything

In version 7.1.2 pip downloads the wheel of a package (if available) with the following:

pip install package -d /path/to/downloaded/file

The following downloads a source distribution:

pip install package -d /path/to/downloaded/file --no-binary :all:

These download the dependencies as well, if pip is aware of them (e.g., if pip show package lists them).

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Update

As noted by Anton Khodak, pip download command is preferred since version 8. In the above examples this means that /path/to/downloaded/file needs to be given with option -d, so replacing install with download works.