[Tutor] my first project: a multiplication trainer

[Chris Fuller]

The basic approach I use in these sorts of problems is to generate the 
choices, remove them from a list as they are asked, and then stop when this 
list is empty.


If you don't need the list of questions afterwards, this will work:

from random import choice

questions = [ [i,j] for i in range(1,10) for j in range(1,10) ]
false_answers = []

while questions:
   q = choice(questions)
   del questions[questions.index(q)]

   # stuff


If you'd like to keep the original question list, make a proxy list, and 
choose from that:

questions = [ [i,j] for i in range(1,10) for j in range(1,10) ]
false_answers = []

choices = range(len(questions))

while choices:
   proxyq = choice(choics)
   del choices[choices.index(proxyq)]

   q = questions[proxyq]

   # stuff


Cheers