def getTabPosition(self, tab):
        try:
            return self._components.index( tab.getComponent() )
        except ValueError:
            return -1
Check if the new app version is ready to serve traffic.
dataset/ETHPy150Open rwl/muntjac/muntjac/ui/tab_sheet.py/TabSheet.getTabPosition--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/tools/appcfg.py/AppVersionUpload.IsReady