Thank you all. Problem solved

How do i reference 2 different UIs in the same python file so as to have 1 UI and another as a pop up```
Insert Code Here

def go(sender):
    search=sender.superview['Title']#from timelineUI.pyui
    page=browser.superview['webview1']#from browser.pyui
    page.load_url('https://en.m.wikipedia.org/wiki/'+search.text)
    ui.load_view('browser').present('sheet')

ui.load_view('TimelineUI').present('sheet')

UI, user interphase, python