Round() function is not showing up in my GUI

When I run my script:

def rate(self, activeCount):
    activeRate = (activeCount/64)/1.5
   #function of activeRate here
    round(activeRate, 3)
    self.incRate.setText(f' {activeRate}/min')

I can’t seem to get this rounding feature to show up in my GUI, however I know the function works when printed. Does anyone know why this is not visuallizing to my GUI in pyqt5? The QLabel is named incRate.

Answer

round is not an “in-place” conversion.

Use activeRate = round(activeRate, 3), or directly use the format syntax, which uses the same implementation as round:

self.incRate.setText(f' {activeRate:.3f}/min')