Hướng dẫn dùng matlab loops python

This is part of the Python code I have that I need to convert Matlab. I just don't understand how while loops work in general. If someone can just get me started I can catch on pretty fast.

while dt*t<=tFinal:

NA.append((-Lamda*NA[t-1]*dt)+NA[t-1])

NB.append(((-LamdaB*NB[t-1]+LamdaA*NA[t-1])*dt)+NB[t-1])

NC.append((Lamda*NB[t-1]*dt)+NC[t-1])

N2T.append(NB0*exp(-LamdaB*Time[t-1]+((LamdaA*NA0)/(LamdaA-LamdaB))*(exp(-LamdaA*dt)-exp(-LambdaB*dt))]

sum.append(NA[t-1]+NB[t-1]+NC[t-1]

t=t+=1