Select a random element from a list without same selection consecutively

rand_selection_norepeat.py

import random

def random_choice(list_data):
  '''Select a random element from a list without same selection consecutively
  Args:
    list_data: List of elements to select from
  Returns:
    Infinite generator of random selections
  '''
  #shallow copy
  data = list_data[:]
  #get a random index from the full range of list
  rnd_idx = random.randrange(len(data))
  yield data[rnd_idx]
  #swap last element with current random element
  data[-1], data[rnd_idx] = data[rnd_idx], data[-1]

  while(True):
    #get a random index from the reduced range of list
    rnd_idx = random.randrange(len(data) - 1)
    yield data[rnd_idx]
    #swap last element with current random element
    data[-1], data[rnd_idx] = data[rnd_idx], data[-1]

if __name__ == '__main__':
  data = [9, 1, 3, 8, 6, 4, 5, 2, 7]
  for element in random_choice(data):
    print(element)
    if input('generate(y/n)') != 'y':
      break

A small bug is there 😄

@sarathsp06 I've added shallow copy to the original list