# list_fixed_shuffle.py

# list_fixed_shuffle.py

import random

items = ['a', 1, 'b', 'c', 2, 3, 'd', 'e', 'f', 4]
fixed = sorted([1,4,5,9])
trade = items[:]
def fixed_shuffle():
    for fix in fixed:
        trade[fix] = ''
    while '' in trade:
        trade.remove('')
    random.shuffle(trade)
    for fix in range(len(items)):
        if fix in fixed:
            trade.insert(fix,items[fix])
    return trade
#

for demo in range(10):
    print fixed_shuffle()