I mean, as a part of build process[1] create a ZIP file, containinng all the dependencies and a file called `__main__.py`. Name that file `varnishturner.egg`, and just `python varnishturner.egg` would do the trick.

Or you can ignore this arcane approach suggestion and just publish on PyPI. I suppose Python installations without pip (or at least easy_install) are rare sights.

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[1] Custom `Makefile`s to the rescue, or there's `bdist_egg` in distutils, although you'd have to write dependency packaging logic by yourself. For example, you can check how lxml does this with their `STATICDEPS=True python setup.py bdist_egg` process.