Some additional info ...
Don't try to do it via NSMutableURLRequest & setValue:forHTTPHeaderField:, doesn't work, UIWebView overwrites it. When UIWebView will be replaced with WKWebView (in Pythonista), it will be much easier because of customUserAgent property.Welcome!
This is the community forum for my apps Pythonista and Editorial.
For individual support questions, you can also send an email. If you have a very short question or just want to say hello — I'm @olemoritz on Twitter.