Permit API requests from any user agent

Using Python urllib, I was getting HTTP 403 Forbidden responses when making API requests. It works fine with the Python requests example on the website, but not with urllib. I would prefer to use Python 3 standard libraries where possible to minimise package dependencies. I found I could make it work by setting the User-Agent: header to ‘Mozilla’. Can we please just allow requests from any User-Agent, or at least include Python-urllib?

(Especially if the user is authenticated with a token?)