select elements randomly under a specific condition

Question

I am completely biggener. I've made a WebApp using django to organize a class room. I want to generate random work groups of 2 students where the two students don't talk the same first_languge. Evrey thing Works, but still have results don't match that condition.

this is the code that I have done:

from students.models import students
import random

#make a list of all students
a =list(students.objects.all())

#the select function
def group (x,y):
res = []
for i in range(y):
while len(res)<y:
res = random.sample(x, k=y)
while x[i].first_language == x[i-1].first_language:
group(x,y)
return None
return res

#multiple call for the function
for n in range(10):
p = group(a,2)
print(p)
if i call the function multiple times i get groups from students with the same mother language, and this is wrong.
https://code.sololearn.com/c9XeVe9wknkq/?ref=app

Answer 1

Jay Matthews I've tried it, and the same results happened