Basket — a local static PyPI repository builder

Basket is a small command-line utility that downloads Python packages from a (real) PyPI server and store them in a single place so that they can be found by easy_install or pip when offline.

Latest version

I often work offline (typically in the train). It is not unusal then to have to create a virtual environment and fill it with the Python packages I need. Without an Internet connection, I could copy Python packages from an environment to another, but this is a bit cumbersome. I need a local PyPI repository. Basket allows me to build and maintain such a repository.

Basket is not a PyPI mirror. It is not a server: you cannot register or upload packages. It does not install Python packages in a Python installation or a virtual environment.


You need Python 2.7 or Python 3.2 to run Basket. It may work with other versions but this has not been tested.

  1. Install Basket:

    $ easy_install Basket


    $ pip install Basket
  2. Initialize your Basket repository:

    $ basket init
    Repository has been created: ~/.basket

    This will create a .basket/ directory in your home folder. If this location is not appropriate, you may configure it by setting a BASKET_ROOT environment variable. If the directory already exists, an error message will be printed.

  3. Download one or more packages:

    $ basket download unittest2
    Added unittest2 0.5.1.
    $ basket download nose coverage
    Added coverage 3.5.2.
    Added nose 1.1.2.

    Basket searches for the name of the package so the case does not matter:

    $ basket download MySql-pYthon
    Added MySQL-python 1.2.3.

    If you already have the latest version of the requested package, Basket will not download it again. If there is a more recent version, Basket will download it but will also keep the old one. This is a feature: if you want to remove old versions, use the prune command (see below).

    Basket also downloads requirements:

    $ basket download Jinja2
    Added Jinja2 2.6.
      -> requires: Babel
    Added Babel 0.9.6.

    See the Limitations and features section below for further details about which packages can be downloaded and how Basket handle requirements.

  4. List all downloaded packages:

    $ basket list
    Babel 0.9.6
    coverage 3.5.2
    Jinja2 2.6
    MySQL-python 1.2.3
    nose 1.1.2
    unittest2 0.5.1

    Or only one or more specific packages:

    $ basket list nose
    nose 1.1.2
    $ basket list nose coverage
    coverage 3.5.2
    nose 1.1.2
  5. You probably want to update packages regularly. The following will download the latest version of each existing package if you do not have it already:

    $ basket update nose
    nose is already up to date (1.1.2).

    Ok, we have the latest versions. Let's mess with the repository to make it think that we actually have an old version of nose:

    $ mv ~/.basket/nose-1.1.2.tar.gz ~/.basket/nose-1.1.1.tar.gz
    $ basket list nose
    nose 1.1.1

    And ask again:

    $ basket update nose
    Added nose 1.1.2.

    As indicated above for the download command, old versions are kept alongside the latest one. This is a feature.

    $ basket list nose
    nose 1.1.1
    nose 1.1.2

    You may update only a particular package or a set of packages:

    $ basket update Jinja2
    Jinja2 is already up to date (2.6).
    $ basket update nose coverage
    coverage is already up to date (3.5.2).
    nose is already up to date (1.1.2).

    Usually, though, you would ask for an update of all downloaded packages:

    $ basket update
    Babel is already up to date (0.9.6).
    coverage is already up to date (3.5.2).
    Jinja2 is already up to date (2.6).
    MySQL-python is already up to date (1.2.3).
    nose is already up to date (1.1.2).
    unittest2 is already up to date (0.5.1).
  6. If you wish to keep only the latest version of each package, use the prune command:

    $ basket list nose
    nose 1.1.1
    nose 1.1.2
    $ basket prune nose
    Removed nose 1.1.1 (kept 1.1.2).
    $ basket list nose
    nose 1.1.2

    You may do the same thing on all downloaded packages:

    $ basket prune
    Babel has only one version. Nothing to prune.
    coverage has only one version. Nothing to prune.
    Jinja2 has only one version. Nothing to prune.
    MySQL-python has only one version. Nothing to prune.
    nose has only one version. Nothing to prune.
    unittest2 has only one version. Nothing to prune.

    Of course, it would be wiser to update downloaded packages before pruning anything. Otherwise, you may end up keeping only your latest downloaded packages instead of the latest released packages.

Obviously, all commands above (except list) require an Internet connection. The point of Basket is that if you are offline, you can still install your preferred packages from your Basket repository:

$ easy_install -f ~/.basket -H None pyramid

Or if you prefer Pip:

$ pip install --no-index -f file:///path/to/.basket pyramid

Running Basket without any argument, with wrong arguments or with the help command will print an helpful message that describes each command.


Display an helpful message with the syntax of each command.
Initialize a new repository named .basket in your home folder (unless a BASKET_ROOT environment variable is set, in which case its value is used as the path to the repository).
download <package1> <package2> ...
Download one or more packages.
list [<package1> <package2> ...]
List all downloaded packages (or only the requested ones).
prune [<package1> <package2> ...]
Keep only the latest version of each downloaded package (or only the requested ones).
update [<package1> <package2> ...]
Download latest version of each downloaded package (or only the requested ones) if we do not already have it.

Limitations and features

Basket downloads source distributions only. That may or may not cause issues for certain packages on certain platforms.

Basket cannot download packages that are not hosted on PyPI. Note that a package may appear on PyPI while its files are hosted somewhere else. In this case, easy_install and pip go a long way to find the files (by following links and parsing HTML pages). Basket, on the other hand, does not do that and act as if the package was not on PyPI.

When looking at requirements, Basket only cares about the name of the package, ignoring any particular version requirements (e.g. "nose>=1.1.2") and thus always downloading the latest version. This may be a problem for packages that explictly require a version that is not the latest.

Also, Basket downloads optional requirements. This is a feature.

Development and license

Basket is hosted on GitHub. Feel free to report bugs and contribute there.

Tests may be run with Tox, which has to be installed first. Unit and integration tests may be run with the tox command. Functional tests are a lot slower (more than 30 seconds for each Python version) and must be run explicitly with tox -e py27-functional and tox -e py32-functional.

Basket is written by Damien Baty and is licensed under the 3-clause BSD license.


1.0 (2012-05-14)

0.9 (2012-04-16)

0.8 (2012-02-15)

First public release.