gistfile1.py

    all_possible_plays = Play.objects.filter(preview_only=False, play_start__gte=start_date, 
                            play_start__lt=end_date, users__is_staff=False)

    for play in all_possible_plays:
        if play_history.has_key(play.song.pk):
            #increment tallies
            play_history[play.song.pk]['plays'] += 1
            
            if play.credit_taken:
                play_history[play.song.pk]['credit_plays'] += 1
            else:
                # determine if a subscription or free play
                if is_play_within_subscription(play):
                    play_history[play.song.pk]['sub_plays'] += 1
                else:
                    play_history[play.song.pk]['free_plays'] += 1
        else:
            #create a new one
            
            credit_play = sub_play = free_play = 0 
            
            if play.credit_taken:
                credit_play = 1
            else:
                # determine if a subscription or free play
                if is_play_within_subscription(play):
                    sub_play = 1
                else:
                    free_play = 1
            
            play_history[play.song.pk] = { 'title' : play.song.title.encode('utf-8'),
                                            'artist' : play.song.denormed_artist_name.encode('utf-8'), 
                                            'duration' : convert_duration_to_MCPS_time(play.song.duration), 
                                            'country_code' : '0826', 
                                            'streaming' : 'ST', 
                                            'price' : '0.00', 
                                            'plays' : 1,
                                            'credit_plays': credit_play,
                                            'sub_plays': sub_play,
                                            'free_plays': free_play,
                                          }

for key in play_history.keys():
        writer.writerow(...)