In the context of building Docker images, it is often required to download stuff. If curl/wget are available, great, but often slim images don't offer that.

The urllib could provide a very simple download functionality (like http offers a simple server):

    from urllib.request import urlopen
    data = urlopen('https://.../install-poetry.py').read()
    # print or save data

If there's some interest, I could open a PR.