Hello.
Bináris wrote:
Now it is not minor, but is still bot edit and the user doesn't get the orange strip on the top of the screen.
Well, it should appear ('new message' notice do not appear only when bot makes minor edits on user talk pages).
MediaWiki has also support for 'bot' parameter, so you can decide when your bot should be visible on recentchanges, but I don't know how it is supported in pywikipedia.