python - format float to decimal in pyQt

问题

I have this code in pyQt:

calculation = day + night self.label.setText(repr(calculation * 30)

and I can see result as: 3.7446232 but I would like to see as 3.74.

Could you please point me to how to set decimal to 2. Should I use .format(round(calculation * 30) or for pyQt is different way to do this?

Regards

回答1:

You could do

self.label.setText("%.2f", % (calculation * 30))

Documentation

来源：https://stackoverflow.com/questions/34814941/python-format-float-to-decimal-in-pyqt