random_ext is a extra class for python random class. This class has shuffle_child.

random_ext.py

#!/usr/bin/env python

import random

class random_ext():

    @staticmethod
    def shuffle_child(var,key,make=None):
        '''
            Shuffle child index
        '''
        fields = list()
        for i in var:
            try:
                fields.append({key:i[key]})
            except:
                if make is not None:
                    fields.append({key:make})
                    
        random.shuffle(fields)

        for i in var:
            try:
                if i[key] != None:    
                    value = random.choice(fields)
                    i[key] = value[key]
                    fields.remove(value)
            except:
                if make is not None:
                   value = random.choice(fields)
                   i[key] = value[key]
                   fields.remove(value)
        return var


data = (
        {
            'name' : 'morteza',
            'active' : 1
        },
        {
            'name' : 'mike',
            'active' : 1
        },
        {
            'name' : 'jessica'
        },
        {
            'name' : 'alex',
            'active' : 0
        },
        {
            'name' : 'sarah',
            'active' : 0
        }
)

print random_ext.shuffle_child(data,'active',0)