[PyQt] Project on PyQt

[GMail]

Hi, i am a programmer with almost 100% of my experience working on Python Data mining, web scrapping, data visualization and for circumstances out of my reach i should change my country of living and i just got this job for developing a Python GUI based software so after checking my choices i went for Qt (PyQt) toolkit so far so good but the thing is that i have never developed GUI or Network based software and i would like from anybody some lights about how should i make the structure of this to be on target the best practices in GUI Qt PyQt standards. BTW the software i am going to develop is a casino player tracking app. 
Thanks in advance for any clarifying comment.

Claudio.