I have developed an application with pyqt5 and it is working fine on windows but when i run this app on mac osx it's graphics are not working fine like  the layout of the buttons, labels and other stuff are not showing perfectly. 
I have created app in PyQt5 and using Cx_freeze i made executable for windows as well as mac osx. 
I tried py2app also still on mac side my application is not working.
Most of the default styling of qt widgets are derived from the OS or the interface that you are using, try changing some style sheet properties to get the desired layout and since there are no code, I can't pinpoint to what can be done to change.
my pyqt5 application is working fine on windows but when i run this on Mac the graphics are not as it is