Provides you with a way to download your APKs easily, and without being tracked by Google. Since I don't use their market application on my phone, I wanted to have a way to download the APKs from the web, hosted at a location I trust, so here it is!
Install it using pip
$ pip install gplayproxy
Then, run it how you want, for instance with pserve:
$ pserve gplayproxy.ini
In a separate process, you also need to run the worker:
$ rqworker
Then, the only thing you need is an HTTP client to tell the proxy to download a package. So you can go with your browser at http://localhost:6543/package/org.thoughtcrime.securesms
And it will download it at the location specified in the configuration file.